English
Related papers

Related papers: CP Violation in B^0_s Mesons

200 papers

There has been a lot of recent interest in the experimental hints of CP violation in B_{d,s}^0 mixing, which would be a clear signal of beyond the standard model physics (with higher significance). We derive a new relation for the mixing…

High Energy Physics - Phenomenology · Physics 2013-05-30 Marat Freytsis , Zoltan Ligeti , Sascha Turczyk

We present a precise measurement of the CP violation parameter sin2phi_1 and the direct CP violation parameter A_f using the final data sample of 772x10^6 B\bar B pairs collected at the Upsilon(4S) resonance with the Belle detector at the…

High Energy Physics - Experiment · Physics 2012-12-21 Belle Collaboration , I. Adachi , H. Aihara , D. M. Asner , V. Aulchenko , T. Aushev , T. Aziz , A. M. Bakich , A. Bay , V. Bhardwaj , B. Bhuyan , M. Bischofberger , A. Bondar , A. Bozek , M. Bracko , T. E. Browder , P. Chen , B. G. Cheon , K. Chilikin , R. Chistov , K. Cho , S. -K. Choi , Y. Choi , J. Dalseno , M. Danilov , Z. Dolezal , Z. Drasal , S. Eidelman , D. Epifanov , J. E. Fast , V. Gaur , N. Gabyshev , A. Garmash , Y. M. Goh , B. Golob , J. Haba , K. Hara , T. Hara , K. Hayasaka , H. Hayashii , T. Higuchi , Y. Horii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , H. J. Hyun , T. Iijima , A. Ishikawa , R. Itoh , M. Iwabuchi , Y. Iwasaki , T. Iwashita , T. Julius , P. Kapusta , N. Katayama , T. Kawasaki , H. Kichimi , C. Kiesling , H. J. Kim , H. O. Kim , J. B. Kim , J. H. Kim , K. T. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , S. Koblitz , P. Kodyš , S. Korpar , P. Krizan , P. Krokovny , T. Kuhr , R. Kumar , T. Kumita , A. Kuzmin , Y. -J. Kwon , J. S. Lange , S. -H. Lee , J. Li , Y. Li , C. Liu , Y. Liu , Z. Q. Liu , D. Liventsev , R. Louvot , D. Matvienko , S. McOnie , K. Miyabayashi , H. Miyata , Y. Miyazaki , R. Mizuk , G. B. Mohanty , T. Mori , N. Muramatsu , E. Nakano , M. Nakao , H. Nakazawa , S. Neubauer , S. Nishida , K. Nishimura , O. Nitoh , S. Ogawa , T. Ohshima , S. Okuno , S. L. Olsen , Y. Onuki , H. Ozaki , P. Pakhlov , G. Pakhlova , H. K. Park , K. S. Park , T. K. Pedlar , R. Pestotnik , M. Petric , L. E. Piilonen , A. Poluektov , M. Rohrken , M. Rozanska , H. Sahoo , K. Sakai , Y. Sakai , T. Sanuki , Y. Sato , O. Schneider , C. Schwanda , A. J. Schwartz , K. Senyo , V. Shebalin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , J. B. Singh , P. Smerkol , Y. -S. Sohn , A. Sokolov , E. Solovieva , S. Stanic , M. Staric , M. Sumihama , K. Sumisawa , T. Sumiyoshi , S. Tanaka , G. Tatishvili , Y. Teramoto , I. Tikhomirov , K. Trabelsi , T. Tsuboyama , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , Y. Ushiroda , S. E. Vahsen , G. Varner , K. E. Varvell , A. Vinokurova , C. H. Wang , M. -Z. Wang , P. Wang , M. Watanabe , Y. Watanabe , K. M. Williams , E. Won , B. D. Yabsley , H. Yamamoto , Y. Yamashita , M. Yamauchi , Y. Yusa , Z. P. Zhang , V. Zhilich , A. Zupanc , O. Zyukova

We present a measurement of the \CP-violating parameter \betas using approximately 6500 $\BsJpsiPhi$ decays reconstructed with the CDF\,II detector in a sample of $p\bar p$ collisions at $\sqrt{s}=1.96$ TeV corresponding to 5.2 fb$^{-1}$…

High Energy Physics - Experiment · Physics 2013-05-30 CDF Collaboration , T. Aaltonen

Phenomenological CP-violating parameters in decays of neutral B-mesons are discussed with special attention to the degree of their measurability. Important role of the sign of \Delta m_B is emphasized. We briefly describe how it could be…

High Energy Physics - Phenomenology · Physics 2016-11-03 Ya. Azimov

The latest results for the measurement of the CP violating phase beta_s in B0s -> J/psi phi decays, from 5.2 fb-1 integrated luminosity of CDF data are presented. For the first time, this measurement includes the contribution of B0s ->…

High Energy Physics - Experiment · Physics 2011-02-03 Louise Oakes

We present measurements of the time-dependent CP-violation parameters S and C in the decays omega K0S, eta'K0, reconstructed as eta'K0S and eta'K0L, and pi0K0S. The data sample corresponds to the full BABAR dataset of 467 x 10^6 BB pairs…

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

A search for CP violation has been performed in a sample of semileptonic Bs decays corresponding to approximately 5fb^-1 of data collected by the D0 detector in Run II at the Fermilab Tevatron collider. A time-dependent fit to the…

High Energy Physics - Experiment · Physics 2014-11-20 Lars Sonnenschein

Recent developments in the theory of CP violation in the B-meson system are reviewed, with focus on the determination of sin(2beta) from B-> J/psi K decays, its implications for tests of the Standard Model and searches for New Physics, and…

High Energy Physics - Phenomenology · Physics 2009-11-07 Matthias Neubert

In this decade, there are huge efforts to explore B-meson decays, which provide an interesting playground for stringent tests of the Standard-Model description of the quark-flavour sector and the CP violation residing there. Thanks to the…

High Energy Physics - Phenomenology · Physics 2011-03-23 Robert Fleischer

CP violation in $B$ decays is reviewed in the Standard Model (SM) and beyond the SM. The present explanation of CP violation in terms of a phase in the Cabibbo-Kobayashi-Maskawa (CKM) matrix can be tested through a variety of CP asymmetries…

High Energy Physics - Phenomenology · Physics 2016-09-06 Michael Gronau

The determination of the CP-violating phase $\phi_s$ in $B^0_s \rightarrow J/\psi \phi$ decays is one of the key goals of the LHCb experiment. Its value is predicted to be very small in the Standard Model but can be significantly enhanced…

High Energy Physics - Experiment · Physics 2011-12-06 Georg Krocker

We present new measurements of CP-violation parameters in B0 --> phi K0, K+ K- Ks, f0(980) Ks, eta' Ks, omega Ks, Ks pi0, and K*0 gamma (K*0 --> Ks pi0) decays based on a sample of 275 x 10^6 BBbar pairs collected at the Upsilon(4S)…

High Energy Physics - Experiment · Physics 2019-08-14 K. Abe

We present a measurement of the Standard Model CP violation parameter sin(2phi_1) based on a 10.5 fb^{-1} data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collider. One neutral B meson…

High Energy Physics - Experiment · Physics 2008-11-26 A. Abashian

We present a precise measurement of the standard model CP-violation parameter sin(2phi1), the direct CP violation parameter |lambda|, the lifetimes of charged and neutral B mesons and their ratio, and the B0-B0bar mixing parameter Delta m_d…

High Energy Physics - Experiment · Physics 2014-11-17 The Belle Collaboration , K. Abe

We report improved measurements of time-dependent CP violation parameters for B^0(\bar{B}^0) -> psi(2S) K_S. This analysis is based on a data sample of 657x10^6 BBbar pairs collected at the Y(4S) resonance with the Belle detector at the…

High Energy Physics - Experiment · Physics 2019-08-13 H. Sahoo , T. E. Browder , K. Trabelsi

We present an improved measurement of CP-violation parameters in B0 --> phi Ks0, K+ K- Ks0, and eta' Ks0 decays based on a 140 fb-1 data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric…

High Energy Physics - Experiment · Physics 2008-11-26 The Belle Collaboration , K. Abe

We present an improved measurement of the standard model CP violation parameter sin2phi1 (also known as sin2beta) based on a sample of 45x10^6 BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2019-08-14 T. Higuchi

We have searched for CP violation in the decays $D^0\rightarrow K^0_S P^0$ where $P^0$ denotes a neutral pseudo-scalar meson which is either a $\pi^0$, $\eta$, or $\eta'$ using KEKB asymmetric-energy $e^+e^-$ collision data corresponding to…

High Energy Physics - Experiment · Physics 2019-08-14 B. R. Ko , E. Won

The BABAR detector, at the PEP-II asymmetric B Factory at SLAC collected a sample of 32 million BBbar pairs whilst operating at energies near the Upsilon(4S) resonance between October 1999 and May 2001. An study of time-dependent…

High Energy Physics - Experiment · Physics 2010-11-23 James Weatherall

CP-violating effects in decays of B mesons offer a wide spectrum of probes for testing the phase structure of the quark-flavour sector of the Standard Model. After a brief discussion of the picture emerging from the current LHC data, the…

High Energy Physics - Phenomenology · Physics 2015-06-22 Robert Fleischer