Z. Zhang

activity

19992026

most citedObservation of electron-antineutrino disappearance at Daya Bay

2.2k citations · 31.8k across the 513 of their papers we have counts for

collaborators

Showing 2006Show all

22 papers · 1 filter

hep-ex2006★ 31 cited

Observation of the decay Upsilon(4S) -> Upsilon(1S) pi+ pi-

The Belle Collaboration

We study transitions between Upsilon states with the emission of charged pions using 477 fb^{-1} of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- colli…

hep-ex2006★ 36 cited

A Search for the Rare Leptonic Decays B+ -> mu+ nu and B+ -> e+ nu

N. Satoyama

We present a search for the decays B+ -> mu+ nu_mu and B+ -> e+ nu_e in a 253 fb-1 data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energ…

hep-ex2006★ 7 cited

Measurement of the ratio Br(D0 --> pi+pi-pi0)/Br(D0 --> K-pi+pi0)

K. Abe

We report a high-statistics measurement of the relative branching fraction Br(D0 --> pi+pi-pi0)/Br(D0 --> K-pi+pi0). A 357 inverse fb data sample collected with the Belle detector…

hep-ex2006★ 4 cited

Search for B+ -> J/psi eta' K+ and B0 -> J/psi eta' Ks0 Decays

Q. L. Xie

We report the results of searches for B+ -> J/psi eta' K+ and B0 -> J/psi eta' Ks0 decays, using a sample of 388 x 10^6 BBbar pairs collected with the Belle detector at the Upsilon…

hep-ex2006★ 58 cited

Search for Lepton Flavor Violating Decays $τ^{\pm} \to ℓ^{\pm} π^{0}, ℓ^{\pm} η, ℓ^{\pm} η^{'}$

The BABAR Collaboration, B. Aubert

A search for lepton flavor violating decays of the $τ$ lepton to a lighter mass lepton and a pseudoscalar meson has been performed using 339 fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data…

nucl-ex2006★ 21 cited

Rapidity and species dependence of particle production at large transverse momentum for $d$ +Au collisions at \sqrt s_NN = 200 GeV

STAR Collaboration

We determine rapidity asymmetry in the production of charged pions, protons and anti-protons for large transverse momentum (pT) for d+Au collisions at \sqrt s_NN = 200 GeV. The ide…

hep-ex2006★ 9 cited

Measurement of χ_cJ--> K+K-K+K-

BES Collaboration, M. AblikimJ

Using 14M psi(2S) events taken with the BES-II detector, chi_cJ-->K+K-K+K- decays are studied. For the four-kaon final state, the branching fractions are B(chi_c0,1,2 -->K+K-K+K-)=…

hep-ex2006★ 29 cited

Observation of B Decays to Two Kaons

S. -W. Lin, P. Chang

Using 449 million BBbar pairs collected with the Belle detector at the KEKB asymmetric-energy e^+e^- collider, we observe clear signals for B^+-> \bar{K}^0 K^+ and B^0-> \bar{K}^0…

hep-ex2006★ 11 cited

Search for Resonant $B^{\pm} \to K^{\pm} h \to K^{\pm} γ γ$ Decays at Belle

Belle Collaboration, J. Wicht

We report measurements and searches for resonant $B^{\pm} \to K^{\pm} h \to K^{\pm} γ γ$ decays where $h$ is a $η, η^{'}, η_{c}, η_{c} (2 S), χ_{c 0}, χ_{c 2}, J / ψ$ meson or the X(3872)…

hep-ex2006★ 12 cited

Improved Measurements of Branching Fractions and CP Asymmetries in B-> eta h Decays

P. Chang

We report improved measurements of B decays with an eta meson in the final state using 492 fb^{-1} of data collected by the Belle detector at the KEKB e^+ e^- collider. We observe…

hep-ex2006★ 15 cited

Study of the charmed baryonic decays $B ˉ^{0} \to Σ_{c}^{++} p ˉ π^{-}$ and $B ˉ^{0} \to Σ_{c}^{0} p ˉ π^{+}$

K. S. Park, H. Kichimi

We study the three-body charmed baryonic decays $B ˉ^{0} \to Σ_{c}^{++} p ˉ π^{-}$ and $B ˉ^{0} \to Σ_{c}^{0} p ˉ π^{+}$ in the four-body final state $\bar{B}^0\toΛ_c^{+}\bar{p}π^+π^-…

hep-ex2006★ 116 cited

Measurement of the near-threshold $e^{+} e^{-} \to D^{() \pm} D^{\mp}$ cross section using initial-state radiation

Belle Collaboration

We report a measurement of the exclusive $e^{+} e^{-} \to D^{(*) \pm} D^{*\mp}$ cross section as a function of center-of-mass energy near the $D^{(*)^{\pm}} D^{*\mp}$ threshold wit…

hep-ex2006★ 190 cited

Observation of a Near-threshold $D^{0} D ˉ^{0} π^{0}$ Enhancement in $B \to D^{0} D ˉ^{0} π^{0} K$ Decay

G. Gokhroo, G. Majumder

We report the first observation of a near-threshold enhancement in the $D^{0} D ˉ^{0} π^{0}$ system from $B \to D^{0} D ˉ^{0} π^{0} K$ decays using a 414 $fb^{- 1}$ data sample col…

hep-ex2006★ 19 cited

Search for the h_c meson in B^+- ->h_c K^+-

F. Fang

We report a search for the $h_{c}$ meson via the decay chain $B^{\pm} \to h_{c} K^{\pm}$ , $\etac γ$ with $η_{c} \to K_{S}^{0} K^{\pm} π^{\mp}$ and $p p ˉ$ . No significant signals are obser…

hep-ex2006★ 55 cited

Measurements of branching fractions and $q^{2}$ distributions for $B \to π ℓ ν$ and $B \to ρ ℓ ν$ Decays with $B \to D^{(*)} ℓ ν$ Decay Tagging

T. Hokuue

We report measurements of the charmless semileptonic decays $B^{0} \to π^{-} / ρ^{-} ℓ^{+} ν$ and $B^{+} \to π^{0} / ρ^{0} ℓ^{+} ν$ , based on a sample of $2.75 \times 1 0^{8}$ $B B ˉ$ e…

hep-ex2006★ 17 cited

Search for the Rare Decays J/Psi --> Ds- e+ nu_e, J/Psi --> D- e+ nu_e, and J/Psi --> D0bar e+ e-

BES Collaboration

We report on a search for the decays J/Psi --> Ds- e+ nu_e + c.c., J/Psi --> D- e+ nu_e + c.c., and J/Psi --> D0bar e+ e- + c.c. in a sample of 5.8 * 10^7 J/Psi events collected wi…

nucl-ex2006★ 121 cited

Strange baryon resonance production in $s_{N N} = 200$ GeV $p + p$ and $A u + A u$ collisions

The STAR collaboration, B. I. Abelev, M. M. Aggarwal +375

We report the measurements of $Σ (1385)$ and $Λ (1520)$ production in $p + p$ and $A u + A u$ collisions at $s_{N N} = 200$ GeV from the STAR collaboration. The yields and the $p_{T}…

hep-ex2006★ 18 cited

Search for neutrinoless decays tau -> lhh and tau -> lV0

Y. Yusa

We have searched for neutrinoless tau lepton decays into l h h or l V0, where l stands for an electron or muon, h for a charged light hadron, pi or K, and V0 for a neutral vector m…

hep-ex2006★ 83 cited

Measurement of Forward-Backward Asymmetry and Wilson Coefficients in $B \to K^{*} ℓ^{+} ℓ^{-}$

A. Ishikawa

We report the first measurement of the forward-backward asymmetry and the ratios of Wilson coefficients $A_{9} / A_{7}$ and $A_{10} / A_{7}$ in $B \to K^{*} ℓ^{+} ℓ^{-}$ , where $ℓ$ repres…

hep-ex2006★ 69 cited

Partial wave analyses of J/psi to gamma pi^+ pi^- and gamma pi^0 pi^0

M. Ablikim

Results are presented on J/psi radiative decays to pi^+pi^- and pi^0pi^0 based on a sample of 58M J/psi events taken with the BESII detector. Partial wave analyses are carried out…

hep-ex2006★ 76 cited

Improved Constraints on D0-D0bar Mixing in D0 -> K+ pi- Decays from the Belle Detector

L. M. Zhang, Z. P. Zhang, J. Li

We report the results of a search for D0-D0bar mixing in D0 -> K+ pi- decays based on 400 fb^{-1} of data accumulated by the Belle detector at KEKB. Both assuming CP conservation a…

hep-ex2006★ 51 cited

Measurement of the branching fraction, polarization, and CP asymmetry for B0->rho+rho- decays, and determination of the CKM phase phi_2

A. Somov, A. J. Schwartz

We have measured the branching fraction B, longitudinal polarization fraction f_L, and CP asymmetry coefficients A and S for B0->rho+rho- decays with the Belle detector at the KEKB…