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Related papers: New limits on CPT-Symmetry Violation in Charm meso…

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In this review we first discuss the string theoretical motivations for induced decoherence and deviations from ordinary quantum-mechanical behaviour; this leads to intrinsic CPT violation in the context of an extended class of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Nikolaos E. Mavromatos , Sarben Sarkar

We have searched for CP-violating asymmetries in neutral charm meson decays in 13.7 fb^-1 of e^+e^- collision data at sqrt{s} = 10.6 GeV with the CLEO detector. The measured asymmetries in the rate of D0 and D0bar decays to K0sPi0, Pi0Pi0…

High Energy Physics - Experiment · Physics 2010-04-08 G. Bonvicini , CLEO Collaboration

We study the behaviour of the flavour changing neutral currents in the Left-Right Symmetric Model related to the presence of spontaneous CP phases. To do this, we explore four cases corresponding to combinations of maximal and no CP…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yeinzon Rodriguez , Carlos Quimbay

We report a search for non-Standard Model physics through the measurement of CP-violating asymmetry in the Cabibbo suppressed D0->pi+pi- and D0->K+K- decays reconstructed in about 5.94/fb of CDF data. We use the strong D*+->D0pi+ decay ("D*…

High Energy Physics - Experiment · Physics 2011-05-17 Angelo Di Canto

I discuss the measurement of CP-violating asymmetries ($A_{\Gamma}$) between effective lifetimes of $D^0$ or $\bar{D}^0$ mesons. Fully reconstructed $D^0\to K^+ K^-$ and $D^0\to \pi^+\pi^-$ decays collected in $p\bar{p}$ collisions by the…

High Energy Physics - Experiment · Physics 2015-08-31 Sabato Leo

Mixing and CP violation in charm meson decays provide a unique probe of possible physics beyond the standard model. In this paper, we give a brief review of the current measurements from the BABAR experiment.

High Energy Physics - Experiment · Physics 2015-05-20 Chunhui Chen

We review the salient features of a comparative study of the profile of the CKM unitarity triangle, and the resulting CP-violating phases $\alpha$, $\beta$ and $\gamma$ in B decays, in the standard model and in several variants of the…

High Energy Physics - Phenomenology · Physics 2010-11-23 Ahmed Ali , David London

We consider the interplay of fundamental and matter-induced T violation effects in neutrino oscillations in matter. After discussing the general features of these effects we derive a simple approximate analytic expression for the…

High Energy Physics - Phenomenology · Physics 2010-05-28 E. Kh. Akhmedov , P. Huber , M. Lindner , T. Ohlsson

In this review we first discuss the theoretical motivations for possible CPT violation and deviations from ordinary quantum-mechanical behavior of field-theoretic systems in the context of an extended class of quantum-gravity models. Then…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jose Bernabeu , John Ellis , Nick E. Mavromatos , Dimitri V. Nanopoulos , Joannis Papavassiliou

A search is presented for CPT-violating effects in the mixing of $B^0_s$ mesons using the D0 detector at the Fermilab Tevatron Collider. The CPT-violating asymmetry in the decay $B^0_s \rightarrow \mu^{\pm} D_s^{\mp} X$ as a function of…

High Energy Physics - Experiment · Physics 2016-08-25 D0 Collaboration

We investigate the joint influence of CPT violation and quantum-gravity-induced Planck-scale corrections on the entanglement entropy of two-flavor neutrino oscillations. Building on the CPT-violating neutrino mass matrix arising from…

High Energy Physics - Phenomenology · Physics 2026-04-01 Bipin Singh Koranga , Baktiar Wasir Farooq

A general technique is presented for treating CPT violation in neutral-meson oscillations. The effective field theory for a complex scalar with CPT-violating operators of arbitrary mass dimension is incorporated in the formalism for the…

High Energy Physics - Phenomenology · Physics 2019-07-12 Benjamin R. Edwards , Alan Kostelecky

Very recently, the LHCb Collaboration observed the $CP$ violation (CPV) in the charm sector for the first time, with $\Delta A_{CP}^{\rm dir}\equiv A_{CP}(D^0\to K^+K^-)-A_{CP}(D^0\to \pi^+\pi^-)=(-1.54\pm0.29)\times10^{-3}$. This result is…

High Energy Physics - Phenomenology · Physics 2019-03-27 Hsiang-nan Li , Cai-Dian Lü , Fu-Sheng Yu

The CP violation of the neutral $B$ meson is the important phenomenon to search for the new physics. The like-sign dimuon charge asymmetry observed by the D$\O$ Collaboration indicates the CP-violating new physics in the $B_s-\bar B_s$…

High Energy Physics - Phenomenology · Physics 2015-06-04 Atsushi Hayakawa , Yusuke Shimizu , Morimitsu Tanimoto , Kei Yamamoto

The effects of perturbative Lorentz and CPT violation on neutrino oscillations are studied. Features include neutrino-antineutrino oscillations, direction dependence, and unconventional energy behavior. Leading-order corrections arising…

High Energy Physics - Phenomenology · Physics 2009-10-20 Jorge S. Diaz , Alan Kostelecky , Matthew Mewes

Parameters describing CPT violation are extracted from a variety of rate asymmetries in the neutral-$D$ system. The precision to which these parameters could be measured in present and planned machines is examined.

High Energy Physics - Phenomenology · Physics 2007-05-23 Don Colladay , Alan Kostelecky

The LHCb experiment has been able to collect the largest sample ever produced of charm-hadron decays, performing a number of measurements of observables related to $C\!P$ violation in the charm sector. In this document, the most recent…

High Energy Physics - Experiment · Physics 2021-10-05 Federico Betti

Motivated by the interest in searches for violation of CPT invariance, we study its possible effects in the flavour ratios of high-energy neutrinos coming from cosmic accelerators. In particular, we focus on the effect of an energy…

High Energy Physics - Phenomenology · Physics 2010-01-06 J. L. Bazo Alba , M. Bustamante , A. M. Gago , O. G. Miranda

The BTeV experiment at Fermilab could reconstruct >10^9 charm decays, three orders of magnitude beyond the largest extant sample. The experiment is likely to run during Tevatron Run II. It will have significant new-physics reach in the…

High Energy Physics - Experiment · Physics 2007-05-23 Daniel M. Kaplan

It was recently pointed out that inclusive B^0(t) decays could show CP violation. The totally inclusive asymmetry is expected to be tiny [O(10^{-3})] because of large cancellations among the asymmetries in the charmless, single charm and…

High Energy Physics - Phenomenology · Physics 2014-11-17 Isard Dunietz
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