Related papers: The BABAR Detector: Upgrades, Operation and Perfor…

Measurement of Rb in e+e- Collisions at 182 - 209 GeV

Measurements of Rb, the ratio of the bbbar cross-section to the qqbar cross- section in e+e- collisions, are presented. The data were collected by the OPAL experiment at LEP at centre-of-mass energies between 182 GeV and 209 GeV. Lepton,…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL Collaboration , G. Abbiendi

Observation of Decays B0->D_s(*)+pi- and B0->D_s(*)-K+

We report the observation of decays B0->D_s(*)+pi- and B0->D_s(*)-K+ in a sample of 230*10^6 Upsilon(4S)->BBbar events recorded with the BaBar detector at the PEP-II asymmetric-energy e+e- storage ring. We measure the branching fractions…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

Search for the decay B+ -> Kbar*0(892) K+

We report on a search for the process B+ -> Kbar*0(892) K+ using 232 10^6 Upsilon(4S) -> BBbar decays collected with the BaBar detector at the PEP-II asymmetric-energy B Factory at SLAC. From a signal yield of 25 +/- 13 [stat] +/- 7 [syst]…

High Energy Physics - Experiment · Physics 2010-04-12 The BaBar Collaboration , B. Aubert

Using e-e+ to b b(bar) to test properties of new interactions at LEP2 and higher energies

We show that in e-e+ colliders at energies above the Z-peak, the process e-e+ to b b(bar) becomes very sensitive to the presence of residual New Physics (NP) effects described by the dim=6 SU(3)*SU(2)*U(1) gauge invariant operators O(qW),…

High Energy Physics - Phenomenology · Physics 2014-11-17 G. J. Gounaris , D. T. Papadamou , F. M. Renard

Prospects for R Measurement at BaBar using Radiative Return

A precise measurement of the ratio of hadron to muon production in e^+e^- collisions, denoted by R(s), is a necessary input for the interpretation of current precision electroweak measurements. We describe a method for measuring R(s) with…

High Energy Physics - Experiment · Physics 2007-05-23 Nicolas Berger

CP Violation measurements in B to charm decays at BaBar

This article summarises measurements of time-dependent CP asymmetries in decays of neutral B mesons to charm final states using data collected by the BaBar detector at the PEP-II asymmetric-energy B-factory. All results are preliminary…

High Energy Physics - Experiment · Physics 2017-08-23 Katherine A. George

Evidence of a Broad Structure at an Invariant Mass of 4.32 GeV/$c^2$ in the Reaction $e^+e^-\to\pi^+\pi^-\psi(2S)$ Measured at BaBar

We present a measurement of the cross section of the process $e^+e^-\to\pi^+pi^-\psi(2S)$ from threshold up to 8 GeV center-of-mass energy using events containing initial-state radiation, produced at the PEP-II $e^+e^-$ storage rings. The…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

Initial State Radiation and Inclusive Hadron Production Measurements at BABAR

The status of analysis of processes with hard photon emitted from the initial state (ISR) at BABAR is presented. We tag events by the presence of a hard photon in the detector, then reconstruct mu+mu- and several exclusive hadronic final…

High Energy Physics - Experiment · Physics 2007-05-23 F. Anulli

New Results on Pb-Au Collisions at 40 AGeV from the CERES/NA45 Experiment

In 1999 the CERES/NA45 ran at the CERN SPS with a beam energy of 40 GeV/nucleon. The data set comprises about 8.7 millions Pb-Au events with a trigger selection corresponding to approximately the most central 30% of the geometrical cross…

Nuclear Experiment · Physics 2019-08-14 K. Filimonov

bb-bar Production Cross Section in 920 GeV p-N Collisions

The b-bbar production cross section in 920 GeV proton - nucleus collisions was obtained with the HERA-B detector, using a sample of 1.35 million of di-lepton triggered events taken during the 2000 physics run. The b-bbar events are…

High Energy Physics - Experiment · Physics 2014-11-17 Patricia Conde

Observation of a resonant structure in $e^{+}e^{-} \to K^{+}K^{-}\pi^{0}\pi^{0}$

Using $e^{+}e^{-}$ collision data samples with center-of-mass energies ranging from 2.000 to 2.644 GeV, collected by the BESIII detector at the BEPCII collider, and with a total integrated luminosity of 300 pb^{-1}, a partial-wave analysis…

High Energy Physics - Experiment · Physics 2020-03-25 M. Ablikim , M. N. Achasov , P. Adlarson , S. Ahmed , M. Albrecht , A. Amoroso , Q. An , Anita , Y. Bai , O. Bakina , R. Baldini Ferroli , I. Balossino , Y. Ban , K. Begzsuren , J. V. Bennett , N. Berger , M. Bertani , D. Bettoni , F. Bianchi , J. Biernat , J. Bloms , I. Boyko , R. A. Briere , H. Cai , X. Cai , A. Calcaterra , G. F. Cao , N. Cao , S. A. Cetin , J. F. Chang , W. L. Chang , G. Chelkov , D. Y. Chen , G. Chen , H. S. Chen , M. L. Chen , S. J. Chen , X. R. Chen , Y. B. Chen , W. Cheng , G. Cibinetto , F. Cossio , X. F. Cui , H. ~L. ~Dai , J. P. Dai , X. C. Dai , A. Dbeyssi , D. Dedovich , Z. Y. Deng , A. Denig , I. Denysenko , M. Destefanis , F. De Mori , Y. Ding , C. Dong , J. Dong , L. Y. Dong , M. Y. Dong , S. X. Du , J. Fang , S. S. Fang , Y. Fang , R. Farinelli , L. Fava , F. Feldbauer , G. Felici , C. Q. Feng , M. Fritsch , C. D. Fu , Y. Fu , X. L. Gao , Y. Gao , Y. Gao , Y. G. Gao , I. Garzia , E. M. Gersabeck , A. Gilman , K. Goetzen , L. Gong , W. X. Gong , W. Gradl , M. Greco , L. M. Gu , M. H. Gu , S. Gu , Y. T. Gu , C. Y Guan , A. Q. Guo , L. B. Guo , R. P. Guo , Y. P. Guo , Y. P. Guo , A. Guskov , S. Han , T. T. Han , T. Z. Han , X. Q. Hao , F. A. Harris , K. L. He , F. H. Heinsius , T. Held , Y. K. Heng , M. Himmelreich , T. Holtmann , Y. ~R. ~Hou , Z. ~L. ~Hou , H. ~M. ~Hu , J. ~F. ~Hu , T. ~Hu , Y. ~Hu , G. ~S. ~Huang , L. ~Q. ~Huang , X. ~T. ~Huang , N. ~Huesken , T. ~Hussain , W. ~Ikegami Andersson , W. ~Imoehl , M. ~Irshad , S. ~Jaeger , S. ~Janchiv , Q. ~Ji , Q. ~P. ~Ji , X. ~B. ~Ji , X. ~L. ~Ji , H. ~B. ~Jiang , X. ~S. ~Jiang , X. ~Y. ~Jiang , J. ~B. ~Jiao , Z. ~Jiao , D. ~P. ~Jin , S. ~Jin , Y. ~Jin , T. ~Johansson , N. ~Kalantar-Nayestanaki , X. ~S. ~Kang , R. ~Kappert , M. ~Kavatsyuk , B. ~C. ~Ke , I. ~K. ~Keshk , A. ~Khoukaz , P. ~Kiese , R. ~Kiuchi , R. ~Kliemt , L. ~Koch , O. ~B. ~Kolcu , B. ~Kopf , M. ~Kuemmel , M. ~Kuessner , A. ~Kupsc , M. ~ G. ~Kurth , W. ~Kühn , J. ~J. ~Lane , J. ~S. ~Lange , P. ~Larin , L. ~Lavezzi , H. ~Leithoff , M. ~Lellmann , T. ~Lenz , C. ~Li , C. ~H. ~Li , Cheng~Li , D. ~M. ~Li , F. ~Li , G. ~Li , H. ~B. ~Li , H. ~J. ~Li , J. ~C. ~Li , J. ~L. ~Li , Ke~Li , L. ~K. ~Li , Lei~Li , P. ~L. ~Li , P. ~R. ~Li , S. ~Y. ~Li , W. ~D. ~Li , W. ~G. ~Li , X. ~H. ~Li , X. ~L. ~Li 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~Messchendorp , G. ~Mezzadri , J. ~Min , T. ~J. ~Min , R. ~E. ~Mitchell , X. ~H. ~Mo , Y. ~J. ~Mo , C. ~Morales Morales , N. ~Yu. ~Muchnoi , H. ~Muramatsu , S. ~Nakhoul , Y. ~Nefedov , F. ~Nerling , I. ~B. ~Nikolaev , Z. ~Ning , S. ~Nisar , S. ~L. ~Olsen , Q. ~Ouyang , S. ~Pacetti , X. ~Pan , Y. ~Pan , M. ~Papenbrock , A. ~Pathak , P. ~Patteri , M. ~Pelizaeus , H. ~P. ~Peng , K. ~Peters , J. ~Pettersson , J. ~L. ~Ping , R. ~G. ~Ping , A. ~Pitka , R. ~Poling , V. ~Prasad , H. ~Qi , H. ~R. ~Qi , M. ~Qi , T. ~Y. ~Qi , S. ~Qian , C. ~F. ~Qiao , L. ~Q. ~Qin , X. ~P. ~Qin , X. ~S. ~Qin , Z. ~H. ~Qin , J. ~F. ~Qiu , S. ~Q. ~Qu , K. ~H. ~Rashid , K. ~Ravindran , C. ~F. ~Redmer , M. ~Richter , A. ~Rivetti , V. ~Rodin , M. ~Rolo , G. ~Rong , Ch. ~Rosner , M. ~Rump , A. ~Sarantsev , M. ~Savrié , Y. ~Schelhaas , C. ~Schnier , K. ~Schoenning , D. ~C. ~Shan , W. ~Shan , X. ~Y. ~Shan , M. ~Shao , C. ~P. ~Shen , P. ~X. ~Shen , X. ~Y. ~Shen , H. ~Y. ~Sheng , H. ~C. ~Shi , R. ~S. ~Shi , X. ~Shi , X. ~D~Shi , J. ~J. ~Song , Q. ~Q. ~Song , X. ~Y. ~Song , Y. ~X. ~Song , S. ~Sosio , C. ~Sowa , S. ~Spataro , F. ~F. ~Sui , G. ~X. ~Sun , J. ~F. ~Sun , L. ~Sun , S. ~S. ~Sun , T. ~Sun , W. ~Y. ~Sun , Y. ~J. ~Sun , Y. ~K~Sun , Y. ~Z. ~Sun , Z. ~J. ~Sun , Z. ~T. ~Sun , Y. ~X. ~Tan , C. ~J. ~Tang , G. ~Y. ~Tang , J. ~Tang , X. ~Tang , V. ~Thoren , B. ~Tsednee , I. ~Uman , B. ~Wang , B. ~L. ~Wang , C. ~W. ~Wang , D. ~Y. ~Wang , H. ~P. ~Wang , K. ~Wang , L. ~L. ~Wang , L. ~S. ~Wang , M. ~Wang , M. ~Z. ~Wang , Meng~Wang , P. ~L. ~Wang , W. ~P. ~Wang , X. ~Wang , X. ~F. ~Wang , X. ~L. ~Wang , Y. ~Wang , Y. ~Wang , Y. ~D. ~Wang , Y. ~F. ~Wang , Y. ~Q. ~Wang , Z. ~Wang , Z. ~G. ~Wang , Z. ~Y. ~Wang , Ziyi~Wang , Zongyuan~Wang , T. ~Weber , D. ~H. ~Wei , P. ~Weidenkaff , F. ~Weidner , H. ~W. ~Wen , S. ~P. ~Wen , D. ~J. ~White , U. ~Wiedner , G. ~Wilkinson , M. ~Wolke , L. ~Wollenberg , J. ~F. ~Wu , L. ~H. ~Wu , L. ~J. ~Wu , X. ~Wu , Z. ~Wu , L. ~Xia , H. ~Xiao , S. ~Y. ~Xiao , Y. ~J. ~Xiao , Z. ~J. ~Xiao , Y. ~G. ~Xie , Y. ~H. ~Xie , T. ~Y. ~Xing , X. ~A. ~Xiong , G. ~F. ~Xu , J. ~J. ~Xu , Q. ~J. ~Xu , W. ~Xu , X. ~P. ~Xu , L. ~Yan , L. ~Yan , W. ~B. ~Yan , W. ~C. ~Yan , Xu~Yan , H. ~J. ~Yang , H. ~X. ~Yang , L. ~Yang , R. ~X. ~Yang , S. ~L. ~Yang , Y. ~H. ~Yang , Y. ~X. ~Yang , Yifan~Yang , Zhi~Yang , M. ~Ye , M. ~H. ~Ye , J. ~H. ~Yin , Z. ~Y. ~You , B. ~X. ~Yu , C. ~X. ~Yu , G. ~Yu , J. ~S. ~Yu , T. ~Yu , C. ~Z. ~Yuan , W. ~Yuan , X. ~Q. ~Yuan , Y. ~Yuan , C. ~X. ~Yue , A. ~Yuncu , A. ~A. ~Zafar , Y. ~Zeng , B. ~X. ~Zhang , B. ~Y. ~Zhang , C. ~C. ~Zhang , D. ~H. ~Zhang , Guangyi~Zhang , H. ~H. ~Zhang , H. ~Y. ~Zhang , J. ~L. ~Zhang , J. ~Q. ~Zhang , J. ~W. ~Zhang , J. ~Y. ~Zhang , J. ~Z. ~Zhang , Jianyu~Zhang , Jiawei~Zhang , L. ~Zhang , Lei~Zhang , S. ~Zhang , S. ~F. ~Zhang , T. ~J. ~Zhang , X. ~Y. ~Zhang , Y. ~Zhang , Y. ~H. ~Zhang , Y. ~T. ~Zhang , Yan~Zhang , Yao~Zhang , Yi~Zhang , Z. ~H. ~Zhang , Z. ~Y. ~Zhang , G. ~Zhao , J. ~Zhao , J. ~W. ~Zhao , J. ~Y. ~Zhao , J. ~Z. ~Zhao , Lei~Zhao , Ling~Zhao , M. ~G. ~Zhao , Q. ~Zhao , S. ~J. ~Zhao , T. ~C. ~Zhao , Y. ~B. ~Zhao , Z. ~G. ~Zhao , A. ~Zhemchugov , B. ~Zheng , J. ~P. ~Zheng , Y. ~Zheng , Y. ~H. ~Zheng , B. ~Zhong , C. ~Zhong , L. ~Zhou , L. ~P. ~Zhou , Q. ~Zhou , X. ~Zhou , X. ~K. ~Zhou , X. ~R. ~Zhou , A. ~N. ~Zhu , J. ~Zhu , K. ~Zhu , K. ~J. ~Zhu , S. ~H. ~Zhu , W. ~J. ~Zhu , X. ~L. ~Zhu , Y. ~C. ~Zhu , Y. ~S. ~Zhu , Z. ~A. ~Zhu , J. ~Zhuang , B. ~S. ~Zou , J. ~H. ~Zou

Performance of the OPAL Si-W luminometer at LEP I-II

A pair of compact Silicon-Tungsten calorimeters was operated in the OPAL experiment at LEP to measure the integrated luminosity from detection of Bhabha electrons scattered at angles between 25 and 58 mrad from the beam line. In the eight…

High Energy Physics - Experiment · Physics 2017-08-23 G. Abbiendi , R. G. Kellogg , D. Strom

Measurement of Direct CP Asymmetries in Charmless Hadronic B Decays

We present recent results on time integrated and time dependent CP violation for charmless hadronic B decays using BABAR detector at the PEP-II B-factory.

High Energy Physics - Experiment · Physics 2019-08-14 Emanuele Di Marco

Measurement of the spectral function for the $\tau^-\to K^-K_S\nu_{\tau}$ decay in BABAR experiment

The decay $\tau^{-}\to K^{-}K_S\nu_{\tau}$ has been studied using $430\times10^6$ $e^+e^-\to \tau^+\tau^-$ events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and studied with the BABAR detector. The mass…

High Energy Physics - Experiment · Physics 2018-12-07 S. I. Serednyakov

Tau decays and dark-sector searches at BaBar

We present some recent measurements performed using 514 fb-1 of $e^+e^-$ collisions collected with the BaBar detector at the PEP-II asymmetric collider at SLAC. First we present a study of the decay tau -> K K_S nu, we measure the branching…

High Energy Physics - Experiment · Physics 2019-04-08 Benjamin Oberhof

Search for the reactions e+e- -> mu+ tau- and e+e- -> e+ tau-

We report on a search for the lepton-flavor-violating processes $e^+e^- \to \mu^+\tau^-$ and $e^+e^- \to e^+\tau^-$. The data sample corresponds to an integrated luminosity of 211 fb$^{-1}$ recorded by the BaBar experiment at the SLAC…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

Observation of CP violation in the B^0 meson system

We present an updated measurement of time-dependent CP-violating asymmetries in neutral B decays with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. This result uses an additional sample of Upsilon(4S) decays collected in…

High Energy Physics - Experiment · Physics 2010-05-28 B. Aubert , BABAR Collaboration

A study of B0bar --> D(*)0 K(*)bar decays

We present a study of the decays B0bar --> D(*)0 K(*)0bar using a sample of 124 million Upsilon(4S) --> B0bar B0 decays collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We report evidence for the…

High Energy Physics - Experiment · Physics 2007-05-23 B. Aubert , BABAR Collaboration

Measurement of CP Observables for the Decays B+/- --> D0_CP K*+/-

Using a sample of 232 million Upsilon(4S) --> B Bbar events collected with the BABAR detector at the PEP-II B Factory in 1999-2004, we study B- --> D0 K*(892)- decays where K*- --> KS pi- and D0 --> K-pi+, K-pi+pi0, K-pi+pi+pi- (non-CP…

High Energy Physics - Experiment · Physics 2010-03-19 B. Aubert , BABAR Collaboration

Observation of B Meson Decays to eta pi and eta K

We present preliminary measurements of the B meson decays B+->etapi+, B+->etaK+, and B0->etaK0. The data were recorded with the BABAR detector at PEP II and correspond to 88.9 million BBbar pairs produced in e+e- annihilation through the…

High Energy Physics - Experiment · Physics 2009-09-29 The BABAR Collaboration , B. Aubert