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Related papers: Charm CP violation and searches

200 papers

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

Precision measurements in charm physics offer a window into a unique sector of potential New Physics interactions. LHCb is well equipped to take advantage of the enormous production cross-section of charm mesons in $pp$ collisions at…

High Energy Physics - Experiment · Physics 2019-08-13 S. Borghi

Recent results on mixing, CP violation and rare decays in charm physics from the LHCb experiment are presented. Study of ''wrong-sign'' $D^{0} \rightarrow K^+ \pi^-$ decays provides the highest precision measurements to date of the mixing…

High Energy Physics - Experiment · Physics 2015-06-18 Michael Alexander

We provide an overview of the current experimental and theoretical status of charm CP violation and discuss recent progress in obtaining a Standard Model prediction for $\Delta a_{\rm CP}^{\rm dir}$ using the framework of light-cone sum…

High Energy Physics - Phenomenology · Physics 2024-03-05 Alexander Lenz , Maria Laura Piscopo , Aleksey V. Rusov

After playing a pivotal role in the birth of the Standard Model in the 70's, the study of charm physics has undergone a revival during the last decade, triggered by a wealth of precision measurements from the charm and $B$ factories, and…

High Energy Physics - Experiment · Physics 2022-10-28 Tommaso Pajero

In this proceeding, results of searches for CP violation in charm decays using the full BABAR dataset are discussed. The parameter $A_{CP}$ in the decay $D^\pm\to\KS\pi^\pm$ is determined to be $(-0.39 \pm 0.13 \pm 0.10)%$. Meaurements of…

High Energy Physics - Experiment · Physics 2011-09-09 R. M. White

Measurements of $CP$-violating observables in $B$ meson decays can be used to determine the angles of the Unitarity Triangle and hence probe for manifestations of New Physics beyond the Cabibbo-Kobayashi-Maskawa Standard Model paradigm. Of…

High Energy Physics - Experiment · Physics 2017-08-30 Greig A. Cowan

The CKM matrix is the only source of CP violation in the Standard Model.Heavy-flavour decays provide an ideal laboratory to test the CKM mechanism. Some recent highlights in CP violation in heavy-flavour decays from the LHCb and Belle II…

High Energy Physics - Experiment · Physics 2023-10-27 Yuehong Xie

50 years after the discovery of the first charmed particle, charm physics continues to be an extremely lively field of research and a cornerstone in particle physics. The study of charm, with its unique properties, is characterised by many…

High Energy Physics - Phenomenology · Physics 2025-06-19 David Friday , Evelina Gersabeck , Alexander Lenz , Maria Laura Piscopo

CP violation in B decays provides a powerful tool to probe physics from beyond the Standard Model. A theoretical overview of recent developments of benchmark channels is given, ranging from non-leptonic to rare leptonic and semileptonic…

High Energy Physics - Phenomenology · Physics 2024-02-02 Robert Fleischer

Results of recent searches for new physics in CP violation in charm decays from the BABAR experiment are presented. These results include a measurement of $D^0$ - $\bar{D}^0$ mixing and searches for CP violation in two-body $D^0$ decays, a…

High Energy Physics - Experiment · Physics 2012-10-08 Fernando Palombo

We analyze possible interpretations of the recent LHCb evidence for CP violation in D meson decays in terms of physics beyond the Standard Model. On general grounds, models in which the primary source of flavor violation is linked to the…

High Energy Physics - Phenomenology · Physics 2015-06-04 Gian Francesco Giudice , Gino Isidori , Paride Paradisi

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

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

Some past, present, and future aspects of CP violation are reviewed. The discrete symmetries C, P, and T are introduced with an example drawn from Maxwell's Equations. The history of the discovery of CP violation in the kaon system is…

High Energy Physics - Phenomenology · Physics 2009-10-31 Jonathan L. Rosner

It is possible that the low-energy effects of physics beyond the standard model can be parametrized mainly by anomalous couplings of quarks to the W boson. Such couplings can generate potentially significant contributions to various…

High Energy Physics - Phenomenology · Physics 2010-04-23 Jusak Tandean

CP violation is an excellent tool for probing flavor dynamics as we learnt first with $K_L \to 2 \pi$ and later also with the weak decays of beauty mesons. LHCb 2019 data have shown CP violation for the first time in $D^0\to K^-K^+$ vs.…

High Energy Physics - Phenomenology · Physics 2019-12-11 Xiao-Dong Shi , Xian-Wei Kang , Ikaros Bigi , Wei-Ping Wang , Hai-Ping Peng

The Standard Model predictions for $D^0$-$\bar{D}^0$ mixing and CP violation in $D$ decays are revised. The emphasis is put on obtaining the order of magnitude of the effects. In the case of mixing, the different approaches to the long…

High Energy Physics - Phenomenology · Physics 2009-09-25 Gustavo Burdman

Various developing topics in CP violation are reviewed. There are many theoretical reasons to hope that the CKM paradigm may be incomplete. It is surely too soon to be claiming new physics in \epsilon^\prime/\epsilon or in D^0-\bar D^0…

High Energy Physics - Phenomenology · Physics 2009-10-31 John Ellis

The LHCb collaboration recently announced preliminary evidence for CP violation in D meson decays. We discuss this result in the context of the standard model (SM), as well as its extensions. In the absence of reliable methods to evaluate…

High Energy Physics - Phenomenology · Physics 2012-03-23 Gino Isidori , Jernej F. Kamenik , Zoltan Ligeti , Gilad Perez