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Related papers: Comments on the Sign of CP Asymmetries

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The phenomenon of CP violation is crucial to understand the asymmetry between matter and antimatter that exists in the Universe. Dramatic experimental progress has been made, in particular in measurements of the behaviour of particles…

High Energy Physics - Experiment · Physics 2017-02-28 T. Gershon , V. V. Gligorov

In the near future, we will have the first significant experimental measurements of CP violation in B decays. These measurements will easily test crucial questions such as whether the Standard Model Kobayashi-Maskawa phase plays a dominant…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yosef Nir

We review recent suggestions for testing through B decays the flavor structure of CP violation in the Standard Model. Relative signs of CP asymmetries in U-spin related processes can by themselves test the Kobayashi-Maskawa mechanism in a…

High Energy Physics - Phenomenology · Physics 2016-11-23 Michael Gronau

This is a quick review of CP non-conservation in $B$ physics. Several methods are described for testing the Kobayashi-Maskawa single phase origin of CP violation in B decays, pointing out some limitations due to hadronic uncertainties. A…

High Energy Physics - Phenomenology · Physics 2007-05-23 Michael Gronau

Recent measurements of CP violating asymmetries have led to a significant progress in our understanding of CP violation. The implications of the experimental results for the Kobayashi-Maskawa mechanism and for new physics are explained.

High Energy Physics - Phenomenology · Physics 2010-11-23 Yosef Nir

The subject of 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 phases in the Cabibbo-Kobayashi-Maskawa (CKM) matrix can be tested through a variety of CP…

High Energy Physics - Phenomenology · Physics 2016-09-06 M. Gronau

We review the present status of CP violation in the standard model. Subsequently we make an excursion in the future in order to see what we could expect in this field in this and the next decade. We present various strategies for the…

High Energy Physics - Phenomenology · Physics 2009-09-25 A. J. Buras

CP violation in K and B decays is reviewed in the Standard Model (SM) and beyond the SM. In K decays, one is seeking first evidence for CP violation in direct $K\to \pi\pi$ decays. This would not give a precise quantitative test for the…

High Energy Physics - Phenomenology · Physics 2014-11-17 Michael Gronau

While the Kobayashi--Maskawa model of CP violation passed its first crucial precision test in $B\to J/\psi K_S$, other CP asymmetries in $B$ and $B_s$ decays will have to be measured in order to critically test and overconstrain the model…

High Energy Physics - Phenomenology · Physics 2007-05-23 Michael Gronau

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

In the standard model the CP asymmetries in $B\to \psi K_S$ and $B\to \psi K_L$ are equal in magnitude and opposite in sign to very good approximation. We compute the order $\epsilon_K$ corrections to each of these CP asymmetries and find…

High Energy Physics - Phenomenology · Physics 2014-11-17 Yuval Grossman , Alexander L. Kagan , Zoltan Ligeti

We review the subject of CP violation in $B$ decays in the Standard Model (SM) and beyond the SM. We describe some of the present most promising ways of testing the Cabibbo-Kobayashi-Maskawa (CKM) origin of CP violation through a…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. Gronau

We review the present status of the Standard Model of CP violation, which is based on a complex phase in the Cabibbo-Kobayashi- Maskawa (CKM) matrix. So far CP violation has been observed only in $K^0-\Kbar$ mixing, consistent with a…

High Energy Physics - Phenomenology · Physics 2010-11-01 Michael Gronau

We comment on the implications of the recently measured CP asymmetry in B --> Phi K_S decay. The data disfavor the Standard Model at 2.7 sigma and -if the trend persists in the future with higher statistics - require the existence of CP…

High Energy Physics - Phenomenology · Physics 2009-11-07 Gudrun Hiller

We present the result of a search for charge asymmetry in B^+ -> J/psi K^+ decays. The CP-violating charge asymmetry is measured to be A_CP(B^+ -> J/psi K^+) = [-0.76 +/- 0.50 (stat) +/- 0.22 (syst)]%.

High Energy Physics - Experiment · Physics 2010-09-14 K. Sakai , T. Kawasaki , H. Aihara , K. Arinstein , T. Aushev , A. M. Bakich , V. Balagura , E. Barberio , K. Belous , V. Bhardwaj , B. Bhuyan , M. Bischofberger , A. Bondar , A. Bozek , M. Bračko , T. E. Browder , M. -C. Chang , Y. Chao , A. Chen , K. -F. Chen , P. Chen , B. G. Cheon , C. -C. Chiang , K. Cho , Y. Choi , J. Dalseno , Z. Doležal , Z. Drásal , W. Dungel , S. Eidelman , M. Feindt , B. Golob , H. Ha , J. Haba , K. Hayasaka , H. Hayashii , Y. Horii , Y. Hoshi , W. -S. Hou , H. J. Hyun , K. Inami , R. Itoh , M. Iwabuchi , Y. Iwasaki , J. H. Kang , H. Kawai , H. Kichimi , C. Kiesling , H. J. Kim , J. H. Kim , Y. J. Kim , B. R. Ko , S. Korpar , P. Križan , P. Krokovny , T. Kuhr , T. Kumita , A. Kuzmin , Y. -J. Kwon , S. -H. Kyeong , J. S. Lange , M. J. Lee , J. Li , A. Limosani , C. Liu , D. Liventsev , R. Louvot , A. Matyja , S. McOnie , K. Miyabayashi , H. Miyata , Y. Miyazaki , G. B. Mohanty , D. Mohapatra , E. Nakano , M. Nakao , Z. Natkaniec , S. Neubauer , S. Nishida , O. Nitoh , S. Ogawa , T. Ohshima , S. Okuno , S. L. Olsen , G. Pakhlova , H. Palka , C. W. Park , H. Park , H. K. Park , R. Pestotnik , M. Petrič , L. E. Piilonen , M. Prim , M. Röhrken , S. Ryu , H. Sahoo , Y. Sakai , Schneider , A. J. Schwartz , K. Senyo , Seon , M. E. Sevior , M. Shapkin , C. P. Shen , J. -G. Shiu , B. Shwartz , F. Simon , P. Smerkol , A. Sokolov , E. Solovieva , S. Stanič , M. Starič , K. Sumisawa , T. Sumiyoshi , G. N. Taylor , Y. Teramoto , K. Trabelsi , T. Tsuboyama , S. Uehara , T. Uglov , Y. Unno , S. Uno , G. Varner , K. E. Varvell , K. Vervink , C. H. Wang , M. -Z. Wang , P. Wang , M. Watanabe , Y. Watanabe , R. Wedd , E. Won , Y. Yamashita , C. C. Zhang , Z. P. Zhang , P. Zhou , T. Zivko , A. Zupanc , O. Zyukova1

We present the result of a search for charge asymmetry in B^+ -> J/psi K^+ decays. The CP-violating charge asymmetry is measured to be A_CP(B^+ -> J/psi K^+) = [-0.76 +/- 0.50 (stat) +/- 0.22 (syst)]%.

High Energy Physics - Experiment · Physics 2010-11-19 K. Sakai , T. Kawasaki , H. Aihara , K. Arinstein , T. Aushev , A. M. Bakich , V. Balagura , E. Barberio , K. Belous , V. Bhardwaj , B. Bhuyan , M. Bischofberger , A. Bondar , A. Bozek , M. Bračko , T. E. Browder , M. -C. Chang , Y. Chao , A. Chen , K. -F. Chen , P. Chen , B. G. Cheon , C. -C. Chiang , K. Cho , Y. Choi , J. Dalseno , Z. Doležal , Z. Drásal , W. Dungel , S. Eidelman , M. Feindt , B. Golob , H. Ha , J. Haba , K. Hayasaka , H. Hayashii , Y. Horii , Y. Hoshi , W. -S. Hou , H. J. Hyun , K. Inami , R. Itoh , M. Iwabuchi , Y. Iwasaki , J. H. Kang , H. Kawai , H. Kichimi , C. Kiesling , H. J. Kim , J. H. Kim , Y. J. Kim , B. R. Ko , S. Korpar , P. Križan , P. Krokovny , T. Kuhr , T. Kumita , A. Kuzmin , Y. -J. Kwon , S. -H. Kyeong , J. S. Lange , M. J. Lee , J. Li , A. Limosani , C. Liu , D. Liventsev , R. Louvot , A. Matyja , S. McOnie , K. Miyabayashi , H. Miyata , Y. Miyazaki , G. B. Mohanty , D. Mohapatra , E. Nakano , M. Nakao , Z. Natkaniec , S. Neubauer , S. Nishida , O. Nitoh , S. Ogawa , T. Ohshima , S. Okuno , S. L. Olsen , G. Pakhlova , H. Palka , C. W. Park , H. Park , H. K. Park , R. Pestotnik , M. Petri. c , L. E. Piilonen , M. Prim , M. Rohrken , S. Ryu , H. Sahoo , Y. Sakai , O. Schneider , A. J. Schwartz , K. Senyo , O. Seon , M. E. Sevior , M. Shapkin , C. P. Shen , J. -G. Shiu , B. Shwartz , F. Simon , P. Smerkol , A. Sokolov , E. Solovieva , S. Stani. c , M. Stari. c , K. Sumisawa , T. Sumiyoshi , G. N. Taylor , Y. Teramoto , K. Trabelsi , T. Tsuboyama , S. Uehara , T. Uglov , Y. Unno , S. Uno , G. Varner , K. E. Varvell , K. Vervink , C. H. Wang , M. -Z. Wang , P. Wang , M. Watanabe , Y. Watanabe , R. Wedd , E. Won , Y. Yamashita , C. C. Zhang , Z. P. Zhang , P. Zhou , T. Zivko , A. Zupanc , O. Zyukova

Recently, the CDF collaboration has reported a measurement of the CP asymmetry in the $B\to\psi K_S$ decay: $a_{\psi K_S}=0.79^{+0.41}_{-0.44}$. We analyze the constraints that follow from this measurement on the size and the phase of…

High Energy Physics - Phenomenology · Physics 2010-11-23 Gabriela Barenboim , Galit Eyal , Yosef Nir

New measurements of the CP asymmetry in B->\psi K_S, a_{\psi K_S}, by the BABAR and BELLE collaborations are consistent with the Standard Model prediction for sin2\beta. These measurements, however, leave open the possibility that a_{\psi…

High Energy Physics - Phenomenology · Physics 2011-03-23 Galit Eyal , Yosef Nir , Gilad Perez

In the supersymmetric standard model, the radiative $B$-meson decay $B \to X_s \gamma$ could receive a large contribution from a new source of flavor-changing neutral current, which also violates CP invariance. The CP-conjugate processes…

High Energy Physics - Phenomenology · Physics 2009-10-31 Mayumi Aoki , Gi-Chol Cho , Noriyuki Oshimo

We discuss CP asymmetries in $B^0$-meson decays and \BsBs mixing within the framework of the supersymmetric standard model (SSM). It is shown that \BdBd and \KK mixings could receive sizable new contributions through box diagrams mediated…

High Energy Physics - Phenomenology · Physics 2009-10-28 Noriyuki Oshimo
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