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Related papers: CP violation in two meson tau decays

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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 study the direct CP violation in $B^\pm\to p\bar p K^{(*)\pm}$ decays in the standard model. We point out that these three-body baryonic B decays can be important tools for detecting the direct CP violation in the charged $B$ system, in…

High Energy Physics - Phenomenology · Physics 2008-11-26 C. Q. Geng , Y. K. Hsiao , J. N. Ng

A first measurement of time-reversal (T) asymmetries that are not also CP asymmetries has been recently achieved by the BaBar collaboration. We analyze the measured asymmetries in the presence of direct CP violation, CPT violation, wrong…

High Energy Physics - Phenomenology · Physics 2014-05-07 Elaad Applebaum , Aielet Efrati , Yuval Grossman , Yosef Nir , Yotam Soreq

In supersymmetry with large tan(beta) the decays B0(B0bar) -> l+l- are dominated by the scalar and pseudoscalar Higgs penguin diagrams leading to strong enhancement of leptonic decay rates with potentially large CP asymmetries in the…

High Energy Physics - Phenomenology · Physics 2018-06-25 J. Kalinowski , P. H. Chankowski , Z. Was , M. Worek

If CP violation in the decays of neutral kaons is due to phases in the weak couplings of quarks, as encoded in the Cabibbo-Kobayashi-Maskawa (CKM) matrix, there are many other experimental consequences. Notable among these are CP-violating…

High Energy Physics - Phenomenology · Physics 2009-09-25 J. Rosner

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

Supersymmetric (SUSY) theories include many new parameters, some of which are CP-violating. Assuming that SUSY is found at a future high-energy collider, we examine the decay stop2 -> stop1 tau- tau+ with an eye to obtaining information…

High Energy Physics - Phenomenology · Physics 2009-11-11 Ken Kiers , Alejandro Szynkman , David London

The BABAR experiment at the PEP-II asymmetric B factory at SLAC has collected a large sample of data at the $\Upsilon(4S)$ resonance. I will summarize BABAR's new results on CP violation, B mixing and lifetimes, and a selection of rare B…

High Energy Physics - Experiment · Physics 2007-05-23 Aaron Roodman

We present a measurement of time-dependent CP-violating asymmetries in decays of neutral B mesons to the final states D*-+ pi+-, using approximately 82 million B B bar events recorded by the BABAR experiment at the PEP-II e+ e- storage…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , B. Aubert

We investigate the future determination of the CKM matrix using theoretically clean quantities, like $B(K^+\to\pi^+\nu\bar\nu)$, $B(K_L\to\pi^0\nu\bar\nu)$ or $\sin 2\beta$, $\sin 2\alpha$ as extracted from CP violation studies in $B$…

High Energy Physics - Phenomenology · Physics 2009-10-09 Gerhard Buchalla , Andrzej J. Buras

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

The recent experimental results on CP violation related to the angles of the Cabibbo-Kobayashi-Maskawa (CKM) unitarity triangle 2beta+gamma are summarized in these proceedings. These results are obtained with approximately 232 million…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sergey Ganzhur

We report a feasibility study of $CP$ violation of $\tau^{-}\rightarrow K_{S}\pi^{-} \nu_{\tau}$ decay at a Super Tau Charm Facility~(STCF).With an expected luminosity of 1~ab$^{-1}$ collected by STCF per year at a center-of-mass energy of…

High Energy Physics - Experiment · Physics 2021-05-26 Haoyu Sang , Xiaodong Shi , Xiaorong Zhou , Xianwei Kang , Jianbei Liu

CP violation is observed to date only in K^0 decays and is parameterizable by a single quantity epsilon. Because it is one of the least understood phenomena in the Standard Model and holds a clue to baryogenesis, it must be investigated…

High Energy Physics - Phenomenology · Physics 2008-11-26 Isard Dunietz

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 present measurements of time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurement uses a data sample of 23 million Upsilon(4S)-->B-anti-B decays collected by the BABAR detector at the PEP-II…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , B. Aubert

We describe measurements of CP and CPT violation parameters in B^0B^0bar oscillations, performed at BaBar by using BBbar events collected at the Y(4S) mass peak. These are obtained from two different B-reconstruction methods, namely:…

High Energy Physics - Experiment · Physics 2007-05-23 R. Covarelli

We study CP violation in the two-body decay of a scalar tau into a neutralino and a tau, which should be probed at the LHC and ILC. From the normal tau polarization, a CP asymmetry is defined which is sensitive to the CP phases of the…

High Energy Physics - Phenomenology · Physics 2011-09-21 Herbi Dreiner , Olaf Kittel , Suchita Kulkarni , Anja Marold

CP violation in H^\pm decays into the three possible decay modes into ordinary particles, 1) H^\pm \to tb, 2) H^\pm \to \nu \tau and 3) H^\pm \to W^\pm h^0 is considered. Analytic expressions and numerical results for the CP violating decay…

High Energy Physics - Phenomenology · Physics 2009-04-14 Ekaterina Christova , Helmut Eberl , Elena Ginina

We search for CP violation in neutral charm meson decays using a data sample with an integrated luminosity of 966 fb^-1 collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. The asymmetry obtained in the rate of D^0…

High Energy Physics - Experiment · Physics 2014-07-16 N. K. Nisar , K. Trabelsi , G. B. Mohanty , T. Aziz , A. Abdesselam , I. Adachi , H. Aihara , K. Arinstein , D. M. Asner , V. Aulchenko , T. Aushev , R. Ayad , S. Bahinipati , A. M. Bakich , A. Bala , V. Bansal , P. Behera , K. Belous , V. Bhardwaj , A. Bobrov , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , B. G. Cheon , K. Chilikin , K. Cho , V. Chobanova , Y. Choi , D. Cinabro , J. Dalseno , M. Danilov , Z. Doležal , Z. Drásal , A. Drutskoy , D. Dutta , K. Dutta , S. Eidelman , D. Epifanov , H. Farhat , J. E. Fast , T. Ferber , V. Gaur , N. Gabyshev , S. Ganguly , A. Garmash , Y. M. Goh , B. Golob , T. Hara , H. Hayashii , X. H. He , Y. Hoshi , W. -S. Hou , T. Iijima , A. Ishikawa , R. Itoh , Y. Iwasaki , T. Iwashita , J. H. Kang , T. Kawasaki , C. Kiesling , D. Y. Kim , J. B. Kim , J. H. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , P. Kodyš , S. Korpar , P. Križan , P. Krokovny , T. Kuhr , R. Kumar , A. Kuzmin , Y. -J. Kwon , J. S. Lange , S. -H. Lee , L. Li Gioi , J. Libby , D. Liventsev , P. Lukin , B. Macek , D. Matvienko , K. Miyabayashi , H. Miyata , R. Mizuk , A. Moll , R. Mussa , E. Nakano , M. Nakao , M. Nayak , E. Nedelkovska , O. Nitoh , S. Ogawa , S. Okuno , P. Pakhlov , G. Pakhlova , H. Park , H. K. Park , T. K. Pedlar , T. Peng , R. Pestotnik , M. Petrič , L. E. Piilonen , E. Ribežl , M. Ritter , M. Röhrken , A. Rostomyan , Y. Sakai , S. Sandilya , L. Santelj , T. Sanuki , Y. Sato , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , D. Semmler , K. Senyo , O. Seon , M. E. Sevior , M. Shapkin , V. Shebalin , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , Y. -S. Sohn , A. Sokolov , E. Solovieva , S. Stanič , M. Starič , M. Steder , J. Stypula , T. Sumiyoshi , G. Tatishvili , Y. Teramoto , M. Uchida , T. Uglov , S. Uno , P. Urquijo , Y. Usov , S. E. Vahsen , C. Van Hulse , P. Vanhoefer , G. Varner , K. E. Varvell , M. N. Wagner , C. H. Wang , M. -Z. Wang , P. Wang , Y. Watanabe , K. M. Williams , E. Won , J. Yamaoka , Y. Yamashita , S. Yashchenko , Y. Yook , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc
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