Y. Usov

Inclusive and exclusive measurements of $B$ decays to $I ¨ _{c 1}$ and $I ¨ _{c 2}$ at Belle

V. Bhardwaj, K. Miyabayashi, E. PanzenbÃ¶ck +196

We report inclusive and exclusive measurements for $I ¨ _{c 1}$ and $I ¨ _{c 2}$ production in $B$ decays. We measure $B (B \to I ¨ _{c 1} X)$ = $(3.03 \pm 0.05(\mbox{stat}) \pm 0.2…

hep-ex2025

Search for a pentaquark state decaying into $p J / I ¨ $ in $I^¥ (1, 2 S)$ inclusive decays at Belle

Belle Collaboration, X. Dong, S. M. Zou +162

Using the data samples of 102 million $I^¥ (1 S)$ and 158 million $I^¥ (2 S)$ events collected by the Belle detector, we search for a pentaquark state in the $p J / I ¨ $ final state from $Î¥…

Semi-inclusive studies of semileptonic $B_{s}$ decays at Belle

Belle Collaboration, C. Oswald, P. Urquijo +177

We present an analysis of the semi-inclusive decays $B_{s} \to D_{s}^{-} X ℓ^{+} I^½$ and $B_{s} \to D_{s}^{*-} X ℓ^{+} I^½$ , where $X$ denotes a final state that may consist of additional h…

Search for $B^{+} \to I^¼^{+} I^½_{I^} ¼$ and $B^{+} \to I^¼^{+} N$ with inclusive tagging

M. T. Prim, F. U. Bernlochner, P. Goldenzweig +191

We report the result for a search for the leptonic decay of $B^{+} \to I^¼^{+} I^½_{I^} ¼$ using the full Belle data set of 711 fb $^{- 1}$ of integrated luminosity at the $I^¥ (4 S)$ resona…

Evidence for $B^{+} \to h_{c} K^{+}$ and observation of $I^\cdot_{c} (2 S) \to p p ˉ I ¨ ^{+} I ¨ ^{-}$

Belle Collaboration, K. Chilikin, I. Adachi +173

A search for the decays $B^{+} \to h_{c} K^{+}$ and $B^{0} \to h_{c} K_{S}^{0}$ is performed. Evidence for the decay $B^{+} \to h_{c} K^{+}$ is found; its significance is $4.8Ï…

First measurement of the Q^2 distribution of X(3915) single-tag two-photon production

Belle Collaboration, Y. Teramoto, S. Uehara +203

We report the first measurement of the $Q^{2}$ distribution of $X (3915)$ produced by single-tag two-photon interactions. The decay mode used is $X (3915) \to J / I ¨ I ¨ $ . The cove…

Measurement of the $B ˉ \to X_{s} I^^{3}$ Branching Fraction with a Sum of Exclusive Decays

Belle Collaboration, T. Saito, A. Ishikawa +179

We use 772 $\times 1 0^{6}$ $B B ˉ$ meson pairs collected at the $I^¥ (4 S)$ resonance with the Belle detector to measure the branching fraction for $B ˉ \to X_{s} I^^{3}$ . Our…

Search for $B^{+} \to e^{+} I^½$ and $B^{+} \to I^¼^{+} I^½$ decays using hadronic tagging

Belle Collaboration, Y. Yook, Y. -J. Kwon +175

We present a search for the rare leptonic decays $B^{+} \to e^{+} I^½_{e}$ and $B^{+} \to I^¼^{+} I^½_{I^} ¼$ , using the full $I^¥ (4 S)$ data sample of $772 \times 1 0^{6}$ $B B ˉ$ pairs collected wit…

Evidence for $B^{0} \to p I^ˉ £^{0} I ¨ ^{-}$ at Belle

Belle Collaboration, C. -Y. Chang, M. -Z. Wang +192

We search for the $B^{0} \to p I^ˉ £^{0} I ¨ ^{-}$ decay with $I^ˉ £^{0} \to I^ˉ I^^{3}$ , where the $I^^{3}$ is not measured, using a data sample corresponding to an integrated luminosity of 711 $\…

First search for the $I^\cdot_{c 2} (1 D)$ in $B$ decays at Belle

Belle Collaboration, K. Chilikin, I. Adachi +194

The first dedicated search for the $I^\cdot_{c 2} (1 D)$ is carried out using the decays $B^{+} \to I^\cdot_{c 2} (1 D) K^{+}$ , $B^{0} \to I^\cdot_{c 2} (1 D) K_{S}^{0}$ , $B^0 \rightarrow Î·_{c2}(1D…

Measurements of branching fraction and direct $C P$ asymmetry in $B^{\pm} \to K_{S}^{0} K_{S}^{0} K^{\pm}$ and a search for $B^{\pm} \to K_{S}^{0} K_{S}^{0} I ¨ ^{\pm}$

The Belle Collaboration, A. B. Kaliyar, P. Behera +197

We study charmless hadronic decays of charged $B$ mesons to the final states $K_{S}^{0} K_{S}^{0} K^{\pm}$ and $K_{S}^{0} K_{S}^{0} I ¨ ^{\pm}$ using a $711 f b^{- 1}$ data sample that con…

Measurement of the Lepton Forward-Backward Asymmetry in $B \to X_{s} ℓ^{+} ℓ^{-}$ Decays with a Sum of Exclusive Modes

Y. Sato, A. Ishikawa, H. Yamamoto +173

We report the first measurement of the lepton forward-backward asymmetry $A_{FB}$ as a function of the squared four-momentum of the dilepton system, $q^{2}$ , for the elect…

Search for $B^{0} \to K_{S}^{0} K_{S}^{0} I^^{3}$ decays at Belle

Belle Collaboration, H. B. Jeon, K. H. Kang +219

We report the first search for the penguin-dominated process $B^{0} \to K_{S}^{0} K_{S}^{0} I^^{3}$ using the full data sample of $772 \times 1 0^{6}$ $B B ˉ$ pairs collected with the Bel…

Search for transitions from $I^¥ (4 S)$ and $I^¥ (5 S)$ to $I^\cdot_{b} (1 S)$ and $I^\cdot_{b} (2 S)$ with emission of an $I ¨ $ meson

Belle Collaboration, P. Oskin, R. Mizuk +195

Using data collected in the Belle experiment at the KEKB asymmetric-energy $e^{+} e^{-}$ collider we search for transitions $I^¥ (4 S) \to I^\cdot_{b} (1 S) I ¨ $ , $Î¥(5S) \rightarrow Î·_b(1S)…

Measurement of Time-dependent $C P$ Asymmetries in $B^{0} \to K_{S}^{0} I^\cdot I^^{3}$ Decays

H. Nakano, A. Ishikawa, K. Sumisawa +187

We report a measurement of time-dependent $C P$ violation parameters in $B^{0} \to K_{S}^{0} I^\cdot I^^{3}$ decays. The study is based on a data sample, containing $772 \times 1 0^{6} B B ˉ$ p…

Studies of charmed strange baryons in the $I^ D$ final state at Belle

Y. Kato, T. Iijima, I. Adachi +172

We report the discovery of $I^_{c} (3055)^{0}$ , observed by its decay into the final state $I^ D^{0}$ , and present the first observation and evidence of the decays of $Î_c(3055)^{+}…

Search for charged lepton flavor violating decays of $I^¥ (1 S)$

Belle Collaboration, S. Patra, V. Bhardwaj +216

We present a search for the charged lepton-flavor-violating decays $I^¥ (1 S) \to ℓ ℓ^{'}$ and radiative charged lepton-flavour-violating decays $Î¥(1S)\rightarrowÎ³\ell…

Measurement of two-particle correlations in hadronic $e^{+} e^{-}$ collisions at Belle

Belle Collaboration, A. Abdesselam, I. Adachi +459

The enhancement of charged-particle pairs with large pseudorapidity difference and small azimuthal angle difference, often referred to as the ``ridge signal'', is a phenomenon wide…

Search for CP violation in D^0 -> pi^0 pi^0 decays

N. K. Nisar, K. Trabelsi, G. B. Mohanty +161

We search for CP violation in neutral charm meson decays using a data sample with an integrated luminosity of 966 fb^-1 collected with the Belle detector at the KEKB e+e- asymmetri…

First observation of exclusive $I^¥ (1 S)$ and $I^¥ (2 S)$ decays into light hadrons

Belle Collaboration, C. P. Shen, C. Z. Yuan +153

Using samples of 102 million $I^¥ (1 S)$ and 158 million $I^¥ (2 S)$ events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to t…

Measurement of the Branching Fraction Br(Lambda_c+ -> p K- pi+)

A. Zupanc, C. Bartel, N. Gabyshev +184

We present the first model-independent measurement of the absolute branching fraction of the Lambda_c+ -> p K- pi+ decay using a data sample of 978 fb^-1 collected with the Belle d…

First observation of CP violation and improved measurement of the branching fraction and polarization of B0 -> D+ D- decays

Belle Collaboration, B. Kronenbitter, I. Adachi +160

We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B0 -> D*+ D*- decays using a data sample of 772 mill…

Evidence for the decay $I^c ◯_{c}^{0} \to I ¨ ^{+} I^c ◯ (2012)^{-} \to I ¨ ^{+} (K ˉ I^)^{-}$

Belle Collaboration, Y. Li, S. S. Tang +190

Using a data sample of 980~fb $^{- 1}$ collected with the Belle detector operating at the KEKB asymmetric-energy $e^{+} e^{-}$ collider, we present evidence for the $I^c ◯ (2012)^{-}$ in the re…

Study of Excited $I^_{c}$ States Decaying into $I^_{c}^{0}$ and $I^_{c}^{+}$ Baryons

Belle Collaboration, J. Yelton, I. Adachi +151

Using a data sample of 980 $fb^{- 1}$ of $e^{+} e^{-}$ annihilation data taken with the Belle detector operating at the KEKB asymmetric-energy $e^{+} e^{-}$ collider, we report the resu…

Evidence for $X (3872) \to J / I ¨ I ¨ ^{+} I ¨ ^{-}$ produced in single-tag two-photon interactions

Belle Collaboration, Y. Teramoto, S. Uehara +207

We report the first evidence for $X (3872)$ production in two-photon interactions by tagging either the electron or the position in the final state, exploring the highly virtual pho…

physics.ins-det2010

Belle II Technical Design Report

T. Abe, I. Adachi, K. Adamczyk +407

The Belle detector at the KEKB electron-positron collider has collected almost 1 billion Y(4S) events in its decade of operation. Super-KEKB, an upgrade of KEKB is under constructi…

Search for Time-Dependent CPT Violation in Hadronic and Semileptonic B Decays

T. Higuchi, K. Sumisawa, I. Adachi +176

We report a new sensitive search for CPT violation, which includes improved measurements of the CPT-violating parameter z and the total decay-width difference normalized to the ave…

Measurement of the tau Michel parameters $I^ˉ \cdot$ and $I^¾ I^º$ in the radiative leptonic decay $I ¨ ^{-} \to ℓ^{-} I^½_{I ¨} I^ˉ ½_{ℓ} I^^{3}$

The Belle Collaboration, N. Shimizu, H. Aihara +460

We present a measurement of the Michel parameters of the $I ¨ $ lepton, $I^ˉ \cdot$ and $I^¾ I^º$ , in the radiative leptonic decay $I ¨ ^{-} \to ℓ^{-} I^½_{I ¨} I^ˉ ½_{ℓ} I^^{3}$ using 71…

Measurement of branching fraction and final-state asymmetry for the $B ˉ^{0} \to K_{S}^{0} K^{\mp} I ¨ ^{\pm}$ decay

Belle Collaboration, Y. -T. Lai, I. Adachi +184

We report a measurement of the branching fraction and final-state asymmetry for the $B ˉ^{0} \to K_{S}^{0} K^{\mp} I ¨ ^{\pm}$ decays. The analysis is based on a data sample of 711…

Energy scan of the $e^{+} e^{-} \to h_{b} (n P) I ¨ ^{+} I ¨ ^{-}$ $(n = 1, 2)$ cross sections and evidence for $I^¥ (11020)$ decays into charged bottomonium-like states

Belle Collaboration, R. Mizuk, A. Bondar +155

Using data collected with the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider, we measure the energy dependence of the $e^{+} e^{-} \to h_{b} (n P) I ¨ ^{+} I ¨ ^{-}$ $(n = 1, 2)$ cross s…

The Physics of the B Factories

A. J. Bevan, B. Golob, Th. Mannel +2003

This work is on the Physics of the B Factories. Part A of this book contains a brief description of the SLAC and KEK B Factories as well as their detectors, BaBar and Belle, and da…

First measurement of the CKM angle $I ¨ _{3}$ with $B^{\pm} \to D (K_{S}^{0} I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}) K^{\pm}$ decays

Belle Collaboration, P. K. Resmi, J. Libby +165

We present the first model-independent measurement of the CKM unitarity triangle angle $I ¨ _{3}$ using $B^{\pm} \to D (K_{S}^{0} I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}) K^{\pm}$ decays, where $D$ indicates eithe…

Inclusive cross sections for pairs of identified light charged hadrons and for single protons in $e^{+} e^{-}$ at $s =$ 10.58 GeV

Belle Collaboration, R. Seidl, A. Abdesselam +172

We report the first double differential cross sections of two charged pions and kaons ( $e^{+} e^{-} \to hh X$ ) in electron-positron annihilation as a function of the fractional e…

First Observation of CP Violation in B0->D(*)CP h0 Decays by a Combined Time-Dependent Analysis of BaBar and Belle Data

The BaBar, Belle Collaborations, : +471

We report a measurement of the time-dependent CP asymmetry of B0->D(*)CP h0 decays, where the light neutral hadron h0 is a pi0, eta or omega meson, and the neutral D meson is recon…

hep-ex2010

Observation of Bs->Ds()+Ds()- using e+e- collisions and a determination of the Bs-Bsbar width difference ÎÎ_s

S. Esen, A. J. Schwartz, I. Adachi +125

We have made the first observation of Bs->Ds(*)+Ds(*)- decays using 23.6 fb-1 of data recorded by the Belle experiment running on the Upsilon(5S) resonance. The branching fractions…

Study of $B^{+} \to p n I ¨ ^{0}$

Belle Collaboration, K. -N. Chu, Y. -R. Lin +203

We search for the tree-diagram dominated process $B^{+} \to p n I ¨ ^{0}$ , using a data sample of $772 \times 1 0^{6} B B$ pairs collected at the $I^¥ (4 S)$ resona…

Measurements of the branching fractions of the semileptonic decays $I^_{c}^{0} \to I^^{-} ℓ^{+} I^½_{ℓ}$ and the asymmetry parameter of $I^_{c}^{0} \to I^^{-} I ¨ ^{+}$

Belle Collaboration, Y. B. Li, C. P. Shen +182

Using data samples of 89.5 and 711 fb $^{- 1}$ recorded at energies of $s = 10.52$ and $10.58$ GeV, respectively, with the Belle detector at the KEKB $e^{+} e^{-}$ collider, we repor…

Observation of an alternative $I ¨ _{c 0} (2 P)$ candidate in $e^{+} e^{-} \to J / I ¨ D D ˉ$

Belle Collaboration, K. Chilikin, I. Adachi +167

We perform a full amplitude analysis of the process $e^{+} e^{-} \to J / I ¨ D D ˉ$ , where $D$ refers to either $D^{0}$ or $D^{+}$ . A new charmoniumlike state $X^{*} (3860)$ that deca…

Measurement of the branching fraction of $I^_{c}^{+} \to p I ¨ $ decay at Belle

Belle Collaboration, S. X. Li, L. K. Li +193

Using 980.6 $f b^{- 1}$ of data collected with the Belle detector operating at the KEKB asymmetric-energy $e^{+} e^{-}$ collider, we present a measurement of the branching fraction of…

Measurements of branching fraction and $C P$ asymmetry of the $B ˉ^{0} (B^{0}) \to K_{S}^{0} K^{\mp} I ¨ ^{\pm}$ decay at Belle

A. Abdesselam, I. Adachi, K. Adamczyk +446

We report the measurement of the branching fraction and $C P$ asymmetry for the $B ˉ^{0} (B^{0}) \to K_{S}^{0} K^{\mp} I ¨ ^{\pm}$ decay. The analysis is performed on a data sample of…

Study of $D^{**}$ production and light hadronic states in the $B ˉ^{0} \to D^{*+} I ¨ I ¨ ^{-}$ decay

Belle Collaboration, D. Matvienko, A. Kuzmin +162

We report on the first observations of $B ˉ^{0} \to D_{1} (2430)^{0} I ¨ $ , $B ˉ^{0} \to D_{1} (2420)^{0} I ¨ $ and $B ˉ^{0} \to D_{2}^{*} (2460)^{0} I ¨ $ decays. The $\bar{B}^0 \to D^{*+} Ï(1450…

Measurement of the branching fraction of $I^_{c}^{0} \to I^_{c}^{+} I ¨ ^{-}$ at Belle

Belle Collaboration, S. S. Tang, Y. B. Li +171

Based on a data sample of 983 fb $^{- 1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider, we present the study of the heavy-flavor-conserving decay…

Measurement of the branching fraction and $C P$ asymmetry for $B \to D ˉ^{0} I ¨ $ decays

Belle Collaboration, T. Bloomfield, M. E. Sevior +212

We measure the branching fractions and $C P$ asymmetries for the decays $B^{0} \to D ˉ^{0} I ¨ ^{0}$ and $B^{+} \to D ˉ^{0} I ¨ ^{+}$ , using a data sample of $772 \times 1 0^{6}$ $B\b…

Observation of a vector charmoniumlike state in $e^{+} e^{-} \to D_{s}^{+} D_{s 1} (2536)^{-} + c . c .$

Belle Collaboration, S. Jia, C. P. Shen +171

Using a data sample of 921.9 fb $^{- 1}$ collected with the Belle detector, we study the process of $e^{+} e^{-} \to D_{s}^{+} D_{s 1} (2536)^{-} + c . c .$ via initial-state radiation. We report the fi…

Measurement of $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-} I ¨ (2 S)$ via Initial State Radiation at Belle

X. L. Wang, C. Z. Yuan, C. P. Shen +151

We report measurement of the cross section of $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-} I ¨ (2 S)$ between 4.0 and $5.5 GeV$ , based on an analysis of initial state radiation events in a $980 \rm fb^{-…

Observation of Transverse $I^/ I^ˉ $ Hyperon Polarization in $e^{+} e^{-}$ Annihilation at Belle

The Belle Collaboration, A. Abdesselam, I. Adachi +445

We report the first observation of the polarization of $I^/ I^ˉ $ hyperons transverse to its production plane in $e^{+} e^{-}$ annihilation. We observe a significant polarization that…

Study of $e^{+} e^{-} \to I^¥ (1S, 2S) I^\cdot$ and $e^{+} e^{-} \to I^¥ (1S) I^\cdot^{'}$ at $s = 10.866$ GeV with the Belle detector

Belle Collaboration, E. Kovalenko, A. Garmash +179

We report the first observation of the processes $e^{+} e^{-} \to I^¥ (1S, 2S) I^\cdot$ at $s = 10.866$ ~GeV with a $10.2 I ¨ $ and $16.5 I ¨ $ significance respectively. The measured Born cross…

Amplitude analysis of e+e- => Y(nS)pi+pi- at sqrt(s)=10.865 GeV

A. Garmash, A. Bondar, A. Kuzmin +175

We report results on studies of the e+e- annihilation into three-body Y(nS)pi+pi- (n=1,2,3) final states including measurements of cross sections and the full amplitude analysis. T…

Measurement of $e^{+} e^{-} \to I^^{3} I ¨ _{c J}$ via initial state radiation at Belle

Belle Collaboration, Y. L. Han, X. L. Wang +142

The process $e^{+} e^{-} \to I^^{3} I ¨ _{c J}$ ( $J$ =1, 2) is studied via initial state radiation using 980 fb $^{- 1}$ of data at and around the $I^¥ (n S)$ ( $n$ =1, 2, 3, 4, 5) resonances collected…

Measurement of Branching Fraction and Search for $C P$ Violation in $B \to I ¨ I ¨ K$

S. Mohanty, A. B. Kaliyar, V. Gaur +183

We report the measurement of branching fractions and $C P$ -violation asymmetries in $B \to I ¨ I ¨ K$ decays based on a $711 fb^{- 1}$ data sample containing $772 \times 1 0^{6}$ $B\ba…

Evidence for Isospin Violation and Measurement of $C P$ Asymmetries in $B \to K^{*} (892) I^^{3}$

T. Horiguchi, A. Ishikawa, H. Yamamoto +190

We report the first evidence for isospin violation in $B \to K^{*} I^^{3}$ and the first measurement of difference of $C P$ asymmetries between $B^{+} \to K^{*+} I^^{3}$ and $B^{0} \to K^{* 0} I^^{3}$ …

Measurement of the branching ratio of $B ˉ^{0} \to D^{+} I ¨ ^{-} I^ˉ ½_{I ¨} $ relative to $B ˉ^{0} \to D^{+} ℓ^{-} I^ˉ ½_{ℓ}$ decays with a semileptonic tagging method

A. Abdesselam, I. Adachi, K. Adamczyk +441

We report a measurement of ratio $R (D^{*}) = B (B ˉ^{0} \to D^{*+} I ¨ ^{-} I^ˉ ½_{I ¨} ) / B (B ˉ^{0} \to D^{*+} ℓ^{-} I^ˉ ½_{ℓ})$ , where $ℓ$ d…

Evidence of a structure in $K ˉ^{0} I^_{c}^{+}$ consistent with a charged $I^_{c} (2930)^{+}$ , and updated measurement of $B ˉ^{0} \to K ˉ^{0} I^_{c}^{+} I^ˉ _{c}^{-}$ at Belle

Belle Collaboration, Y. B. Li, C. P. Shen +175

We report evidence for the charged charmed-strange baryon $I^_{c} (2930)^{+}$ with a signal significance of 3.9 $I ¨ $ with systematic errors included. The charged $I^_{c} (2930)^{+}$ is fo…

Measurement of Branching Fractions of Hadronic Decays of the $I^c ◯_{c}^{0}$ Baryon

Belle Collaboration, J. Yelton, I. Adachi +186

Using a data sample of 980 $fb^{- 1}$ of $e^{+} e^{-}$ annihilation data taken with the Belle detector operating at the KEKB asymmetric-energy $e^{+} e^{-}$ collider, we report the resu…

$I ¨ $ lepton mass measurement at Belle II

Belle II Collaboration, F. AbudinÃ©n, I. Adachi +539

The reconstruction of tau-pair production, $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-}$ , from the subsequent 3-prong ( $I ¨ ^{+} \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{+} I^ˉ ½_{I ¨} $ ) and 1-prong ($Ï^{-} \to…

Search for $C P$ Violation and Measurement of the Branching Fraction in the Decay $D^{0} \to K_{S}^{0} K_{S}^{0}$

N. Dash, S. Bahinipati, V. Bhardwaj +196

We report a study of the decay $D^{0} \to K_{S}^{0} K_{S}^{0}$ using 921~fb $^{- 1}$ of data collected at or near the $I^¥ (4 S)$ and $I^¥ (5 S)$ resonances with the Belle detector at the KEKB asymm…

Evidence for B_s^0 -> Lambda_c^+ Lambda-bar pi^-

Belle Collaboration, E. Solovieva, R. Chistov +163

Using 121.4 fb^{-1} of data collected with the Belle detector at the Y(5S) resonance at the KEKB asymmetric-energy e^+e^- collider, we report evidence for the B_s^0 -> Lambda_c^+ L…

Search for lepton-flavor-violating tau-lepton decays to $ℓ I^^{3}$ at Belle

K. Uno, K. Hayasaka, K. Inami +178

Charged lepton flavor violation is forbidden in the Standard Model but possible in several new physics scenarios. In many of these models, the radiative decays $Ï^{\pm}\rightarrow…

Search for the $B \to Y (4260) K, Y (4260) \to J / I ¨ I ¨ ^{+} I ¨ ^{-}$ decays

Belle collaboration, R. Garg, V. Bhardwaj +172

We report the results of a search for the $B \to Y (4260) K, Y (4260) \to J / I ¨ I ¨ ^{+} I ¨ ^{-}$ decays. This study is based on a data sample corresponding to an integrated luminosity of 711~…

Measurement of the CKM Matrix Element $∣ V_{c b} ∣$ from $B^{0} \to D^{*-} ℓ^{+} I^½_{ℓ}$ at Belle

E. Waheed, P. Urquijo, I. Adachi +184

We present a new measurement of the CKM matrix element $∣ V_{c b} ∣$ from $B^{0} \to D^{*-} ℓ^{+} I^½_{ℓ}$ decays, reconstructed with the full Belle data set of $711 f b^{- 1}$ …

Study of Three-Body Y(10860) Decays

I. Adachi, K. Adamczyk, H. Aihara +337

We report preliminary results on the analysis of the three-body Y(10860)=> B barB pi, Y(10860) => (B barB* + c.c.) pi and Y(10860)=> B* barB* pi decays including an observation of…

Measurement of Branching Fraction and First Evidence of CP Violation in B0 --> a1+-(1260) pi-+ Decays

Belle Collaboration, J. Dalseno, I. Adachi +142

We present a measurement of the branching fraction and time-dependent CP violation parameters in B0 --> a_1^+-(1260) pi^-+ decays. The results are obtained from the final data samp…

Search for the $I^\cdot_{c 2} (1 D)$ in $e^{+} e^{-} \to I^^{3} I^\cdot_{c 2} (1 D)$ at $s$ near 10.6 GeV at Belle

Belle Collaboration, S. Jia, C. P. Shen +198

For the first time we search for the $I^\cdot_{c 2} (1 D)$ in $e^{+} e^{-} \to I^^{3} I^\cdot_{c 2} (1 D)$ at $s$ = 10.52, 10.58, and 10.867 GeV with data samples of 89.5 fb $^{- 1}$ , 711 fb $^{- 1}$ , and…

Search for tetraquark states $X_{cc s ˉ s ˉ}$ in $D_{s}^{+} D_{s}^{+} (D_{s}^{+} D_{s}^{+})$ final states at Belle

Belle Collaboration, X. Y. Gao, Y. Li +206

A search for double-heavy tetraquark state candidates $X_{cc s ˉ s ˉ}$ decaying to $D_{s}^{+} D_{s}^{+}$ and $D_{s}^{*+} D_{s}^{*+}$ is presented for the first time using the…

Charmless $B$ decay reconstruction in 2019 Belle II data

Belle II Collaboration, F. AbudinÃ©n, I. Adachi +533

We report on the reconstruction of various charmless $B$ decays from electron-positron collisions at the energy corresponding to the $I^¥ (4 S)$ resonance collected with the Belle II…

Measurement of $B$ ( $B_{s} \to D_{s} X$ ) with $B_{s}$ Semileptonic Tagging

B. Wang, K. Kinoshita, H. Aihara +153

We report the first direct measurement of the inclusive branching fraction $B (B_{s} \to D_{s} X)$ via $B_{s}$ tagging in $e^{+} e^{-} \to I^¥$ (5S) events. Tagging is accomplis…

Measurement of the $I ¨ $ lepton polarization and $R (D^{})$ in the decay $B ˉ \to D^{} I ¨ ^{-} I^ˉ ½_{I ¨} $

S. Hirose, T. Iijima, I. Adachi +191

We report the first measurement of the $I ¨ $ lepton polarization $P_{I ¨} (D^{*})$ in the decay $B ˉ \to D^{*} I ¨ ^{-} I^ˉ ½_{I ¨} $ as well as a new measurement of the ratio of the b…

Study of Ï_{bJ}(1P) Properties in the Radiative Î¥(2S) Decays

A. Abdesselam, I. Adachi, K. Adamczyk +444

We report a study of radiative decays of Ï_{bJ}(1P)(J=0,1,2) mesons into 74 hadronic final states comprising charged and neutral pions, kaons, protons; out of these, 41 modes are…

Measurement of the charm-mixing parameter $y_{C P}$ in $D^{0} \to K_{S}^{0} I ¨ $ decays at Belle

Belle Collaboration, M. Nayak, D. Cinabro +179

We report the first measurement of the charm-mixing parameter $y_{C P}$ in $D^{0}$ decays to the $C P$ -odd final state $K_{S}^{0} I ¨ $ . The study uses the full Belle $e^{+} e^{-}$ annihil…

Rediscovery of $B \to I ¨ K^{()}$ decays and measurement of the longitudinal polarization fraction $f_{L}$ in $B \to I ¨ K^{}$ decays using the Summer 2020 Belle II dataset

We utilize a sample of 34.6 fb $^{- 1}$ , collected by the Belle II experiment at the SuperKEKB asymmetric energy $e^{+} e^{-}$ collider, to search for the $B^{+} \to I ¨ K^{+}$ , $B^+ \to ÏK^{*…

Search for $B^{0} \to I ¨ ^{-} I ¨ ^{+} I^½_{I ¨} $ with hadronic tagging at Belle

Belle Collaboration, P. Hamer, A. Frey +181

We search for the process $B^{0} \to I ¨ ^{-} I ¨ ^{+} I^½_{I ¨} $ using the full Belle data set of $711 fb^{- 1}$ , corresponding to $772 \times 1 0^{6} B B ˉ$ pairs, collected at the $Î¥(4…

Observation of $X (3872)$ in $B \to X (3872) K I ¨ $ decays

A. Bala, V. Bhardwaj, K. Trabelsi +173

We report the first observation of $B^{0} \to X (3872) (K^{+} I ¨ ^{-})$ and evidence for $B^{+} \to X (3872) (K^{0} I ¨ ^{+})$ . We measure the product of branching fractions for the former to…

Search for $I^¥ (1 S, 2 S) \to Z_{c}^{+} Z_{c}^{(') -}$ and $e^{+} e^{-} \to Z_{c}^{+} Z_{c}^{(') -}$ at $s$ = 10.52, 10.58, and 10.867 GeV

Belle Collaboration, S. Jia, C. P. Shen +177

The first search for $Z_{c}$ pair production in $I^¥ (1 S)$ and $I^¥ (2 S)$ decays and in $e^{+} e^{-}$ annihilation at $s$ = 10.52, 10.58, and 10.867 GeV is conducted using data c…

Observation of $B^{0} \to p I^ˉ D^{(*) -}$

Y. -Y. Chang, M. -Z. Wang, A. Abdesselam +167

We report the first observation of the decays $B^{0} \to p I^ˉ D^{(*) -}$ . The data sample of $711$ fb $^{- 1}$ used in this analysis corresponds to $772$ million $B B ˉ$ p…

hep-ex2024

Observation of $I^c ◯ (2012)^{-} \to I^ (1530) K ˉ$ and measurement of the effective couplings of $I^c ◯ (2012)^{-}$ to $I^ (1530) K ˉ$ and $I^ K ˉ$

Belle Collaboration, S. Jia, C. P. Shen +117

Using $I^¥ (1 S)$ , $I^¥ (2 S)$ , and $I^¥ (3 S)$ data collected by the Belle detector, we discover a new three-body decay, $I^c ◯ (2012)^{-} \to I^ (1530) K ˉ \to I^ I ¨ K ˉ$ , with a significance of…

physics.ins-det2020

CsI(Tl) Pulse Shape Discrimination with the Belle II Electromagnetic Calorimeter as a Novel Method to Improve Particle Identification at Electron-Positron Colliders

S. Longo, J. M. Roney, C. Cecchi +15

This paper describes the implementation and performance of CsI(Tl) pulse shape discrimination for the Belle II electromagnetic calorimeter, representing the first application of Cs…

Search for $B^{+} \to e^{+} I^½$ and $B^{+} \to I^¼^{+} I^½$ decays using hadronic tagging

Y. Yook, Y. -J. Kwon, A. Abdesselam +174

Measurement of the branching fraction $B (B ˉ^{0} \to D^{*+} ℓ^{-} I^ˉ ½_{ℓ})$ with early Belle II data

We measure the branching fractions for the decays $B ˉ^{0} \to D^{*+} e^{-} I^ˉ ½_{e}$ and $B ˉ^{0} \to D^{*+} I^¼^{-} I^ˉ ½_{I^} ¼$ using $8.70 \pm 0.09 fb^{- 1}$ of data coll…

Evidence for B- -> tau- nu_tau-bar with a Hadronic Tagging Method Using the Full Data Sample of Belle

Belle Collaboration, K. Hara, Y. Horii +179

We measure the branching fraction of B- -> tau- nu_tau-bar using the full Upsilon(4S) data sample containing 772*10^6 BBbar pairs collected with the Belle detector at the KEKB asym…

Measurement of the Decays $I^_{c} \to I^£ I ¨ I ¨ $ at Belle

Belle Collaboration, M. Berger, C. Schwanda +196

We report measurements of the branching fractions of the decays $I^_{c}^{+} \to I^£^{+} I ¨ ^{-} I ¨ ^{+}$ , $I^_{c}^{+} \to I^£^{0} I ¨ ^{+} I ¨ ^{0}$ and $I^_{c}^{+} \to I^£^{+} I ¨ ^{0} I ¨ ^{0}$ relative to the reference channel $Î^+…

Measurement of $C P$ asymmetry in the $D^{0} \to K_{S}^{0} K_{S}^{0}$ decay at Belle

A. Abdesselam, I. Adachi, K. Adamczyk +447

We report a measurement of the time-integrated $C P$ asymmetry in the neutral charm meson decay $D^{0} \to K_{S}^{0} K_{S}^{0}$ using 921~fb $^{- 1}$ data collected at the $I^¥ (4 S)$ and $I^¥ (5 S)$ …

Measurement of the Decays $B \to I^\cdot ℓ I^½_{ℓ}$ and $B \to I^\cdot^{'} ℓ I^½_{ℓ}$ in Fully Reconstructed Events at Belle

Belle Collaboration, C. BeleÃ±o, J. Dingfelder +142

We report branching fraction measurements of the decays $B^{+} \to I^\cdot ℓ^{+} I^½_{ℓ}$ and $B^{+} \to I^\cdot^{'} ℓ^{+} I^½_{ℓ}$ based on 711~fb $^{- 1}$ of data collected near the $I^¥ (4 S)$ resona…

Measurement of Differential Distributions of $B \to D^{*} ℓ I^ˉ ½_{ℓ}$ and Implications on $∣ V_{c b} ∣$

Belle Collaboration, M. T. Prim, F. Bernlochner +212

We present a measurement of the differential shapes of exclusive $B \to D^{*} ℓ I^ˉ ½_{ℓ}$ ( $B = B^{-}, B ˉ^{0}$ and $ℓ = e, I^¼$ ) decays with hadronic tag-side reconstruction…

Measurement of the direct $C P$ asymmetry in $B ˉ \to X_{s + d} I^^{3}$ decays with a lepton tag

L. PesÃ¡ntez, P. Urquijo, J. Dingfelder +180

We report the measurement of the direct $C P$ asymmetry in the radiative $B ˉ \to X_{s + d} I^^{3}$ decay using a data sample of $(772 \pm 11) \times 1 0^{6}$ $B B ˉ$ pairs colle…

The study of $I^^{3} I^^{3} \to I^^{3} I ¨ (2 S)$ at Belle

X. L. Wang, B. S. Gao, W. J. Zhu +200

Using $980 f b^{- 1}$ of data on and around the $I^¥ (n S) (n = 1, 2, 3, 4, 5)$ resonances collected with the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider, the two-photon…

Measurement of branching fraction and direct $C P$ asymmetry in charmless $B^{+} \to K^{+} K^{-} I ¨ ^{+}$ decays at Belle

Belle Collaboration, C. -L. Hsu, D. Dossett +165

We report a study of the charmless hadronic decay of the charged $B$ meson to the three-body final state $K^{+} K^{-} I ¨ ^{+}$ . The results are based on a data sample that contains $772\t…

Evidence of $I^¥ (1 S) \to J / I ¨ + I ¨ _{c 1}$ and search for double-charmonium production in $I^¥ (1 S)$ and $I^¥ (2 S)$ decays

Belle Collaboration, S. D. Yang, C. P. Shen +155

Using data samples of $102 \times 1 0^{6}$ $I^¥ (1 S)$ and $158 \times 1 0^{6}$ $I^¥ (2 S)$ events collected with the Belle detector, a first experimental search has been made for double-charmoniu…

Measurement of the CKM angle $I ¨ _{1}$ in $B^{0} \to D ˉ^{(*) 0} h^{0}$ , $D ˉ^{0} \to K_{S}^{0} I ¨ ^{+} I ¨ ^{-}$ decays with time-dependent binned Dalitz plot analysis

Belle Collaboration, V. Vorobyev, I. Adachi +163

We report a measurement of the CP violation parameter $I ¨ _{1}$ obtained in a time-dependent analysis of $B^{0} \to D ˉ^{(*) 0} h^{0}$ decays followed by $D ˉ^{0} \to K_{S}^{0} I ¨ ^{+} I ¨ ^{-}$ …

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method

The Belle Collaboration, A. Abdesselam, I. Adachi +461

We report a measurement of the ratios of branching fractions $R (D) = B (B ˉ \to D I ¨ ^{-} I^ˉ ½_{I ¨} ) / B (B ˉ \to D ℓ^{-} I^ˉ ½_{ℓ})$ and $\mathcal{R}…

Observation of $I^¥ (4 S) \to I^\cdot^{'} I^¥ (1 S)$

Belle Collaboration, E. Guido, R. Mussa +168

We report the first observation of the hadronic transition $I^¥ (4 S) \to I^\cdot^{'} I^¥ (1 S)$ , using 496 fb $^{- 1}$ data collected at the $I^¥ (4 S)$ resonance with the Belle detector at the KEKB as…

Updated Cross Section Measurement of $e^{+} e^{-} \to K^{+} K^{-} J / I ¨ $ and $K_{S}^{0} K_{S}^{0} J / I ¨ $ via Initial State Radiation at Belle

Belle Collaboration, C. P. Shen, C. Z. Yuan +159

The cross sections of the processes $e^{+} e^{-} \to K^{+} K^{-} J / I ¨ $ and $K_{S}^{0} K_{S}^{0} J / I ¨ $ are measured via initial state radiation at center-of-mass energies between the threshold and 6.…

Study of $I ¨ _{b J} (n P) \to I ¨ I^¥ (1 S)$ at Belle

Belle Collaboration, A. Abdesselam, I. Adachi +470

We report results from a study of hadronic transitions of the $I ¨ _{b J} (n P)$ states of bottomonium at Belle. The $P$ -wave states are reconstructed in transitions to the $I^¥ (1 S)$ wit…

Study of charmless decays $B^{\pm} \to K_{S}^{0} K_{S}^{0} h^{\pm}$ ( $h = K, I ¨ $ ) at Belle

The Belle Collaboration, A. Abdesselam, I. Adachi +449

We report a search for charmless hadronic decays of charged $B$ mesons to the final states $K_{S}^{0} K_{S}^{0} K^{\pm}$ and $K_{S}^{0} K_{S}^{0} I ¨ ^{\pm}$ . The results are based…

Observation of an excited $I^c ◯^{-}$ baryon

J. Yelton, I. Adachi, J. K. Ahn +189

Using data recorded with the Belle detector, we observe a new excited hyperon, an $I^c ◯^{*-}$ candidate decaying into $I^^{0} K^{-}$ and $I^^{-} K_{S}^{0}$ with a mass of $2012.4\pm0.7\ {\rm (st…

Evidence of a new narrow resonance decaying to $I ¨ _{c 1} I^^{3}$ in $B \to I ¨ _{c 1} I^^{3} K$

Belle Collaboration, V. Bhardwaj, K. Miyabayashi +188

We report measurements of $B \to I ¨ _{c 1} I^^{3} K$ and $I ¨ _{c 2} I^^{3} K$ decays using $772 \times 1 0^{6}$ $B B ˉ$ events collected at the $I^¥ (4 S)$ resonance with the Belle detector at th…

Measurement of time-dependent $C P$ violation in $B^{0} \to K_{S}^{0} I ¨ ^{0} I ¨ ^{0}$ decays

Belle Collaboration, Y. Yusa, H. Aihara +155

We report a measurement of time-dependent $C P$ violation in $B^{0} \to K_{S}^{0} I ¨ ^{0} I ¨ ^{0}$ decays using a data sample of $772 \times 1 0^{6}$ $B B ˉ$ pairs collected by the Belle experi…

Measurement of the $e^{+} e^{-} \to B_{s}^{0} B ˉ_{s}^{0} X$ cross section in the energy range from $10.63$ to $11.02$ GeV using inclusive $D_{s}^{\pm}$ and $D^{0}$ production

Belle Collaboration, V. Zhukova, R. Mizuk +188

We report the first measurement of the inclusive $e^{+} e^{-} \to b b ˉ \to D_{s}^{\pm} X$ and $e^{+} e^{-} \to b b ˉ \to D^{0} / D ˉ^{0} X$ cross sections in the energy range from $10.63$ t…

Measurement of the semileptonic $B ˉ^{0} \to D^{*+} ℓ^{-} I^½_{ℓ}$ branching fraction with fully reconstructed $B$ meson decays and 34.6 fb $^{- 1}$ of Belle II data

Belle II Collaboration, F. Abudinen, I. Adachi +540

We present a first measurement of the $B^{0} ˉ \to D^{*+} ℓ^{-} I^½_{ℓ}$ branching fraction using fully reconstructed $B$ meson decays employing the Full Event Int…

First Observation of the Decay B0->psi(2S)pi0

V. Chobanova, J. Dalseno, C. Kiesling +180

We report a measurement of the $B^{0} \to I ¨ (2 S) I ¨ ^{0}$ branching fraction based on the full $I^¥ (4 S)$ data set of $772 \times 1 0^{6}$ $B B ˉ$ pairs collected by the Belle detect…