Related papers: Probing hyperon CP violation from charmed baryon d…

CP violation studies at Super Tau-Charm Facility

Charge-parity ($C\!P$) violation in the tau-charm energy region is a promising area for sensitive tests of Standard Model (SM) predictions and searches for new, beyond the SM physics. A future Tau-Charm Facility that operates at…

High Energy Physics - Experiment · Physics 2025-02-14 Hai-Yang Cheng , Zhi-Hui Guo , Xiao-Gang He , Yingrui Hou , Xian-Wei Kang , Andrzej Kupsc , Ying-Ying Li , Liang Liu , Xiao-Rui Lyu , Jian-Ping Ma , Stephen Lars Olsen , Haiping Peng , Qin Qin , Pablo Roig , Zhi-Zhong Xing , Fu-Sheng Yu , Yu Zhang , Jianyu Zhang , Xiaorong Zhou

Mini-review of rare charmonium decays at BESIII

Recently, LHCb experiment announced a 3.5$\sigma$ evidence for direct CP violation in $D^0$ decay by looking at the difference between $A_{CP}(D^0\rightarrow K^+K^-)$ and $A_{CP}(D^0\rightarrow \pi^+\pi^-)$. This is the first evidence of CP…

High Energy Physics - Experiment · Physics 2012-02-20 Hai-Bo Li , SHi-Hai Zhu

Full analysis of CP violation induced by the decay angular correlations in four-body cascade decays of heavy hadrons

The violation of the charge-parity (CP) transformation symmetry, which although has been observed in plenty of pure meson decay processes, was only confirmed just very recently by the LHCb collaboration in the four-body decay of the heavy…

High Energy Physics - Phenomenology · Physics 2025-04-29 Zhen-Hua Zhang , Jian-Yu Yang , Xin-Heng Guo

The Production and Decay Dynamics of the Charmed Baryon $\Lambda_c^+$ in $e^+e^-$ Annihilations near Threshold

The study of the charmed baryons is crucial for investigating the strong and weak interactions in the Standard Model and for gaining insights into the internal structure of baryons. In an $e^+e^-$ experiment the lightest charmed baryon,…

High Energy Physics - Experiment · Physics 2025-12-12 BESIII Collaboration , M. Ablikim , M. N. Achasov , P. Adlarson , X. C. Ai , R. Aliberti , A. Amoroso , Q. An , Y. Bai , O. Bakina , Y. Ban , H. -R. Bao , V. Batozskaya , K. Begzsuren , N. Berger , M. Berlowski , M. B. Bertani , D. Bettoni , F. Bianchi , E. Bianco , A. Bortone , I. Boyko , R. A. Briere , A. Brueggemann , H. Cai , M. H. Cai , X. Cai , A. Calcaterra , G. F. Cao , N. Cao , S. A. Cetin , X. Y. Chai , J. F. Chang , T. T. Chang , G. R. Che , Y. Z. Che , C. H. Chen , Chao Chen , G. Chen , H. S. Chen , H. Y. Chen , M. L. Chen , S. J. Chen , S. L. Chen , S. M. Chen , T. Chen , X. R. Chen , X. T. Chen , X. Y. Chen , Y. B. Chen , Y. Q. Chen , Z. Chen , Z. K. Chen , J. Cheng , L. N. Cheng , S. K. Choi , X. Chu , G. Cibinetto , F. Cossio , J. Cottee-Meldrum , H. L. Dai , J. P. Dai , A. Dbeyssi , R. E. de Boer , D. Dedovich , C. Q. Deng , Z. Y. Deng , A. Denig , I. Denisenko , M. Destefanis , F. De Mori , B. Ding , X. X. Ding , Y. Ding , Y. Ding , Y. X. Ding , J. Dong , L. Y. Dong , M. Y. Dong , X. Dong , M. C. Du , S. X. Du , S. X. Du , X. L. Du , Y. Y. Duan , Z. H. Duan , P. Egorov , G. F. Fan , J. J. Fan , Y. H. Fan , J. Fang , J. Fang , S. S. Fang , W. X. Fang , Y. Q. Fang , R. Farinelli , L. Fava , F. Feldbauer , G. Felici , C. Q. Feng , J. H. Feng , L. Feng , Q. X. Feng , Y. T. Feng , M. Fritsch , C. D. Fu , J. L. Fu , Y. W. Fu , H. Gao , X. B. Gao , Y. Gao , Y. N. Gao , Y. N. Gao , Y. Y. Gao , Z. Gao , S. Garbolino , I. Garzia , L. Ge , P. T. Ge , Z. W. Ge , C. Geng , E. M. Gersabeck , A. Gilman , K. Goetzen , J. Gollub , J. D. Gong , L. Gong , W. X. Gong , W. Gradl , S. Gramigna , M. Greco , M. H. Gu , Y. T. Gu , C. Y. Guan , A. Q. Guo , J. N. Guo , L. B. Guo , M. J. Guo , R. P. Guo , X. Guo , Y. P. Guo , A. Guskov , J. Gutierrez , K. L. Han , T. T. Han , F. Hanisch , K. D. Hao , X. Q. Hao , F. A. Harris , K. K. He , K. L. He , F. H. Heinsius , C. H. Heinz , Y. K. Heng , C. Herold , P. C. 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CP Violation: The Future of B Physics

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

LHCb CP violation

The study of $CP$ violation in the beauty hadron sector is a promising approach to search for the effects of physics beyond the Standard Model. Several recent measurements in this area from the LHCb experiment are reported in these…

High Energy Physics - Experiment · Physics 2016-01-05 Mika Vesterinen

CP asymmetries corresponding to the imaginary parts of the interference terms in cascade decays of heavy hadrons

A mechanism of generating CP violation through the imaginary part of the interference of two amplitudes is proposed. This mechanism has shown clear evidence in decays such as $B^\pm\to \pi^\pm\pi^+\pi^-$. The proposed mechanism is helpful…

High Energy Physics - Phenomenology · Physics 2024-09-30 Jing-Juan Qi , Jian-Yu Yang , Zhen-Hua Zhang

CP symmetry tests in the cascade-anticascade decay of charmonium

We analyze joint angular distributions of a charmonium decay to the $\Xi\bar\Xi$ pair using the $\Xi\to\Lambda\pi\to p\pi^-\pi$ weak decay chain for the cascade and the charge conjugated mode for the anticascade. The decays allow a direct…

High Energy Physics - Phenomenology · Physics 2019-12-11 Patrik Adlarson , Andrzej Kupsc

Mixing and $CP$ violation in the charm system

In recent years charm physics has undergone a renaissance, one which has been catalysed by an unexpected and impressive set of experimental results from the $B$-factories, the Tevatron and LHCb. The existence of $D^0\bar{D}{}^0$…

High Energy Physics - Phenomenology · Physics 2020-11-10 Alexander Lenz , Guy Wilkinson

Extracting strong phase and $CP$ violation in $D$ decays by using quantum correlations in $\psi(3770)\to D^0 \overline{D}^0 \to (V_1V_2)(K \pi)$ and $\psi(3770)\to D^0\overline{D}^0\to (V_1V_2)(V_3V_4)

We exploit the angular and quantum correlations in the $D\bar{D}$ pairs produced through the decay of the $\psi(3770)$ resonance in a charm factory to investigate CP-violation in two different ways. We consider the case of…

High Energy Physics - Phenomenology · Physics 2011-04-22 Xian-Wei Kang , Jerome Charles , Sebastien Descotes-Genon , Hai-Bo Li

Exploring CP Violation and Penguin Effects through $B^0_d \to D^+ D^-$ and $B^0_s \to D^+_s D^-_s$

The decay $B^0_d \to D^+ D^-$ offers an interesting probe of CP violation, but requires control of penguin effects, which can be done through $B^0_s \to D^+_s D^-_s$ by means of the $U$-spin flavour symmetry of strong interactions.…

High Energy Physics - Phenomenology · Physics 2008-11-26 Robert Fleischer

TEST OF CP VIOLATION IN NON-LEPTONIC HYPERON DECAYS

In this talk I discuss CP violation in hyperon decays in Left-Right symmetric models. I show that the asymmetry in polarization in $\Lambda \to p\pi^-$ can be as large as $6\times 10^{-4}$ in these models, which is an order of magnitude…

High Energy Physics - Phenomenology · Physics 2016-09-01 Xiao-Gang He

Probing Direct $CP$ Violation in $\Lambda_b^0 \to P_c^+ h^-$ $(h=\pi,K)$ with Final-State Rescattering

The LHCb collaboration has recently reported a measurement of the difference in direct CP asymmetries for the decays $\Lambda_b^0 \to J/\psi \, p \, h^-$ (with $h = K, \pi$), offering new experimental constraints on the decay dynamics of…

High Energy Physics - Phenomenology · Physics 2026-02-04 Zhu-Ding Duan , Tian-Liang Feng , Rui-Hui Li , Ming-Zhu Liu , Jian-Peng Wang , Fu-Sheng Yu

Escaping from controversies in $CP$ violation measurements in charm decays

The breaking of the $CP$ symmetry in $D^0$ meson decays has been awaited for a long time. After a set of measurements provided by the LHCb, CDF, and Belle Collaborations leading in march 2012 to combined results that were consistent with no…

High Energy Physics - Experiment · Physics 2013-11-13 Gianluca Inguglia

CP Violation and Flavour Mixing in the Standard Model

We review and update the constraints on the parameters of the quark flavour mixing matrix $V_{CKM}$ in the standard model and estimate the resulting CP asymmetries in $B$ decays, taking into account recent experimental and theoretical…

High Energy Physics - Phenomenology · Physics 2010-11-11 A. Ali , D. London

Mixing and \CP Violation in Charm Decays at BABAR

In this proceedings we present a measurement of mixing, and searches for direct and indirect CP asymmetries in the charm sector using the full \babar data sample of $469 \invfb$. Searches for direct CP asymmetries have been performed in the…

High Energy Physics - Experiment · Physics 2019-08-13 R. Cenci

Summary of CKM 2023 working group 5: Direct CP violation (DCPV) including $\phi_{3}/\gamma$ from $B\to DK$, DCPV effects, branching fractions and polarisation in charmless $B_{(s)}$ decays

In this contribution a summary of the activities of Working Group 5 (WG5) presented during the 12th International Workshop on the CKM Unitarity Triangle (CKM2023) is reported. This includes new results on $\phi_{3}/\gamma$ measurements…

High Energy Physics - Experiment · Physics 2024-06-05 Melissa Cruz Torres , Tobias Huber , Minakshi Nayak , Gilberto Tetlalmatzi-Xolocotzi

Search for CP violation in D0 and D+ decays

A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ to K-K+pi+, D0 to K-K+ and D0 to pi-pi+. We have…

High Energy Physics - Experiment · Physics 2012-08-27 The FOCUS collaboration

$CP$-violating triple-product asymmetries in Charm decays

The use of triple-product correlations is described in relation to the search for $CP$ violation in 4-body charm meson decays. The latest results from the LHCb and BaBar Collaborations are reported. A novel interpretation of the asymmetries…

High Energy Physics - Experiment · Physics 2014-11-18 Maurizio Martinelli

SuperB and BelleII prospects on direct CP violation measurements

In this paper, we focused on the recent progress of $\gamma/\phi_{3}$ from $B\rightarrow DK$, DCPV effects in charmless hadronic $B_{(S)}$ decays and the prospects of SuperB and BelleII experiments.

High Energy Physics - Experiment · Physics 2013-02-26 Yoshiyuki Onuki