O. Long

A Measurement of the Semileptonic Branching Fraction of the B_s Meson

The BaBar Collaboration, J. P. Lees, V. Poireau +383

We report a measurement of the inclusive semileptonic branching fraction of the B_s meson using data collected with the BaBar detector in the center-of-mass (CM) energy region abov…

hep-ex2023

Search for $B$ Mesogenesis at BABAR

BABAR Collaboration, J. P. Lees, V. Poireau +239

A new mechanism has been proposed to simultaneously explain the presence of dark matter and the matter-antimatter asymmetry in the universe. This scenario predicts exotic $B$ meson…

hep-ex2006

Averages of b-hadron Properties at the End of 2005

Heavy Flavor Averaging Group, E. Barberio, I. Bizjak +26

This article reports world averages for measurements on b-hadron properties obtained by the Heavy Flavor Averaging Group (HFAG) using the available results as of at the end of 2005…

Study of radiative bottomonium transitions using converted photons

The BABAR Collaboration, J. P. Lees, V. Poireau +388

We use 111+/-1 million Upsilon(3S) and 89+/-1 million Upsilon(2S) events recorded by the BaBar detector at the PEP-II B-factory at SLAC to perform a study of radiative transitions…

hep-ex2003

Impact of tag-side interference on time-dependent CP asymmetry measurements using coherent B0 B0bar pairs

O. Long, M Baak, R. N. Cahn +1

Interference between CKM-favored b --> c ubar d and doubly-CKM-suppressed bbar --> ubar c dbar amplitudes in final states used for B flavor tagging gives deviations from the standa…

hep-ex2013

Study of the decay $B ˉ^{0} \to I^_{c}^{+} p ˉ I ¨ ^{+} I ¨ ^{-}$ and its intermediate states

The Babar Collaboration, J. P. Lees, V. Poireau +351

We study the decay $B ˉ^{0} \to I^_{c}^{+} p ˉ I ¨ ^{+} I ¨ ^{-}$ , reconstructing the Î_{c}^{+} baryon in the $p K^{-} I ¨ ^{+}$ mode, using a data sample of $467\times 10^{6}…

Observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K-

The BABAR Collaboration, J. P. Lees, V. Poireau +384

We report the observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K- with a significance larger than 7 standard deviations based on 471x10^6$ BBbar pairs collected…

Measurements of the Absolute Branching Fractions of $B^{\pm} \to K^{\pm} X_{c c ˉ}$

J. P. Lees, V. Poireau, V. Tisserand +232

A study of the two body decays $B^{\pm} \to X_{c c ˉ} K^{\pm}$ , where X $_{c c ˉ}$ refers to one charmonium state, is reported by BaBar collaboration using a data sample of 42…

hep-ex2018

First evidence for $cos 2 I^^{2} > 0$ and resolution of the CKM Unitarity Triangle ambiguity by a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} I ¨ ^{+} I ¨ ^{-}$ decays

The BaBar, Belle Collaborations, : +422

We present first evidence that the cosine of the CP-violating weak phase $2 I^^{2}$ is positive, and hence exclude trigonometric multifold solutions of the CKM Unitarity Triangle using…

hep-ex2019

Search for $B^{-} \to I^ p ˉ I^½ I^ˉ ½$ with the BABAR experiment

The BABAR Collaboration, J. P. Lees, V. Poireau +235

We search for the rare flavor-changing neutral current process $B^{-} \to I^ p I^½ I^½$ using data from the BABAR experiment. A total of 424 fb $^{- 1}$ of $e^{+} e^{-}$ …

Branching fraction and form-factor shape measurements of exclusive charmless semileptonic B decays, and determination of |V_{ub}|

BABAR Collaboration, J. P. Lees, V. Poireau +361

We report the results of a study of the exclusive charmless semileptonic decays, B^0 --> pi^- l^+ nu, B^+ --> pi^0 l^+ nu, B^+ --> omega l^+ nu, B^+ --> eta l^+ nu and B^+ --> eta^…

physics.ins-det2022

ATHENA Detector Proposal -- A Totally Hermetic Electron Nucleus Apparatus proposed for IP6 at the Electron-Ion Collider

ATHENA Collaboration, J. Adam, L. Adamczyk +433

ATHENA has been designed as a general purpose detector capable of delivering the full scientific scope of the Electron-Ion Collider. Careful technology choices provide fine trackin…

Initial-State Radiation Measurement of the e+e- -> pi+pi-pi+pi- Cross Section

J. P. Lees, V. Poireau, V. Tisserand +383

We study the process e+e- -> pi+pi-pi+pi-gamma, with a photon emitted from the initial-state electron or positron, using 454.3 fb^-1 of data collected with the BABAR detector at SL…

Search for rare or forbidden decays of the $D^{0}$ meson

J. P. Lees, V. Poireau, V. Tisserand +234

We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type $D^{0} \to h^{' -} h^{-} ℓ^{' +} ℓ^{+}$ …

hep-ex2018

Measurement of $cos 2 I^^{2}$ in $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} I ¨ ^{+} I ¨ ^{-}$ decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data

The BaBar, Belle Collaborations, : +407

We report measurements of $sin 2 I^^{2}$ and $cos 2 I^^{2}$ from a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} I ¨ ^{+} I ¨ ^{-}$ decays, where the…

Search for lepton-flavor violating decays $D^{0} \to X^{0} e^{\pm} I^¼^{\mp}$

BaBar Collaboration, J. P. Lees, V. Poireau +238

We present a search for seven lepton-flavor-violating neutral charm decays of the type $D^{0} \to X^{0} e^{\pm} I^¼^{\mp}$ , where $X^{0}$ represents a $I ¨ ^{0}$ , $K^{0}_{\rm S…

hep-ex2023

Model-independent extraction of form factors and $∣ V_{c b} ∣$ in $B \to D ℓ^{-} I^½_{ℓ}$ with hadronic tagging at BaBar

BaBar Collaboration, J. P. Lees, V. Poireau +208

Using the entire BaBar $I^¥ (4 S)$ data set, the first two-dimensional unbinned angular analysis of the semileptonic decay $B \to D ℓ^{-} I^½_{ℓ}$ is perf…

Search for hadronic decays of a light Higgs boson in the radiative decay Upsilon --> gamma A0

The BABAR Collaboration, J. P. Lees, V. Poireau +385

We search for hadronic decays of a light Higgs boson (A0) produced in radiative decays of an Upsilon(2S) or Upsilon(3S) meson, Upsilon --> gamma A0. The data have been recorded by…

hep-ex2014

Evidence for the decay B0 --> omega omega and search for B0 --> omega phi

The BABAR Collaboration, J. P. Lees, V. Poireau +333

We describe searches for B meson decays to the charmless vector-vector final states omega omega and omega phi with 471 x 10^6 B Bbar pairs produced in e+ e- annihilation at sqrt(s)…

Precision measurement of the $B (I^¥ (3 S) \to I ¨ ^{+} I ¨ ^{-}) / B (I^¥ (3 S) \to I^¼^{+} I^¼^{-})$ ratio

J. P. Lees, V. Poireau, V. Tisserand +238

We report on a precision measurement of the ratio $R_{I ¨ I^¼}^{I^¥ (3 S)} = B (I^¥ (3 S) \to I ¨ ^{+} I ¨ ^{-}) / B (I^¥ (3 S) \to I^¼^{+} I^¼^{-})$ using data collected with the BaBar detector…

hep-ex2015

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…

hep-ex2013

Observation of Time Reversal Violation in the B0 Meson System

The BABAR Collaboration, J. P. Lees, V. Poireau +364

Although CP violation in the B meson system has been well established by the B factories, there has been no direct observation of time reversal violation. The decays of entangled n…

Track Finding Efficiency in BaBar

T. Allmendinger, B. Bhuyan, D. N. Brown +24

We describe several studies to measure the charged track reconstruction efficiency and asymmetry of the BaBar detector. The first two studies measure the tracking efficiency of a c…