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Related papers: CP, T and fundamental interactions

200 papers

The role of B decays in the study of CP violation is reviewed. We treat the interactions and spectroscopy of the $b$ quark and then introduce CP violation in $B$ meson decays, including time-dependences, decays to CP eigenstates and…

High Energy Physics - Phenomenology · Physics 2017-08-23 Jonathan L. Rosner

Definitions of entropy usually assume time-reversal (T) invariance of interactions, yet microscopically T is known to be violated. We present a detailed computational example of (uncharged) particle species separation (Maxwell demon) using…

High Energy Physics - Phenomenology · Physics 2015-06-04 T. Goldman , D. H. Sharp

After summarizing the status concerning CP violation in 1998 I describe the exciting developments of the last two years and extrapolate to the future. I comment on recent lessons about T and CPT invariance maninly from CPLEAR and emphasize…

High Energy Physics - Phenomenology · Physics 2009-10-31 I. I. Bigi

Planning and interpretation of the experiments searching for the time reversal (T) and parity (P) violation in neutron reactions require values of the matrix elements of the T,P-violating nuclear forces between nuclear compound states. We…

Nuclear Theory · Physics 2019-08-15 Pavel Fadeev , Victor V. Flambaum

We propose to test the CP symmetry in the reactions Z -> mu+ mu- gamma and Z -> tau+ tau- gamma. The experimental analysis of angular correlations allows to determine a set of effective couplings: the electric and weak dipole moments of the…

High Energy Physics - Phenomenology · Physics 2015-06-25 D. Bruss , O. Nachtmann , P. Overmann

The role of Symmetry Breaking mechanisms to search for New Physics is of highest importance. We discuss the status and prospects of the Discrete Symmetries CP, T, CPT looking for their separate Violation in LHC experiments and meson…

High Energy Physics - Phenomenology · Physics 2019-05-22 J. Bernabeu

The distributions of the single decay b-quarks and leptons from e^+e^- \to t\bar t assuming CP violation are reviewed. Different asymmetries, sensitive independently to CP violation in the production and in the decay, and sensitive to the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Ekaterina Christova

The motivations for the construction of an 8-component representation of fermion fields based on a two dimensional representation of time reversal transformation and CPT invariance are discussed. Some of the elementary properties of the…

High Energy Physics - Theory · Physics 2007-05-23 S. Ying

In this letter, we propose a novel approach to concurrently measure the complementary $CP$ violation observables induced by $T$-odd correlations and their corresponding $T$-even counterparts, where $T$ represents time reversal. Our analysis…

High Energy Physics - Phenomenology · Physics 2024-08-26 Jian-Peng Wang , Qin Qin , Fu-Sheng Yu

The reaction $p\bar p\to t\bar bX$ is found to be rather rich in exhibiting several different types of CP asymmetries. The spin of the top quark plays an important role. Asymmetries are related to form factors arising from radiative…

High Energy Physics - Phenomenology · Physics 2009-12-30 David Atwood , Shaouly Bar-Shalom , Gad Eilam , Amarjit Soni

High-precision measurements of violations of fundamental symmetries in atoms are a very effective means of testing the standard model of elementary particles and searching for new physics beyond it. Such studies complement measurements at…

Atomic Physics · Physics 2009-08-18 J. S. M. Ginges , V. V. Flambaum

CP-violating asymmetries in the processes e+e- -> t tbar and gamma gamma -> ttbar can provide information about CP-violating couplings of the top quark, whose presence would signal physics beyond the standard model. Work on studies of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Saurabh D. Rindani

We review CP violation in various extensions of the electroweak sector of the Standard Model. A particular emphasis is put on supersymmetric models. We describe the two CP problems of supersymmetry, concerning $d_N$ and $\epsilon_K$. We…

High Energy Physics - Phenomenology · Physics 2016-11-03 Yuval Grossman , Yosef Nir , Riccardo Rattazzi

The precise connection between the theoretical T, CP, CPT asymmetries, in terms of transition probabilities between the filtered neutral meson $B_d$ states and the experimental asymmetries between the double decay rate intensities for…

High Energy Physics - Phenomenology · Physics 2016-07-20 Jose Bernabeu , Francisco J. Botella , Miguel Nebot

The violation of parity (P) and time-reversal (T) symmetry is enhanced in the LaS, LaO and LuO molecules due to the existence of states of opposite parity with small energy differences and the presence of heavy nuclei. We calculate the…

It is explained that the Standard Model combined charge conjugation and parity transformation (CP) is a simultaneous complex conjugation outer automorphism transformation of gauge and space-time symmetries. Simple examples are given for the…

High Energy Physics - Phenomenology · Physics 2017-09-13 Andreas Trautner

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

Contrary to the conventional belief, time integrated asymmetry are measurable in selected final states in the neutral $B$ system at symmetric $e^+e^-$ colliders. They occur due to the interplay of weak and strong phases of two different…

High Energy Physics - Phenomenology · Physics 2009-10-28 N. G. Deshpande , Xiao-Gang He

The T-odd triple product (TP) asymmetries in B decays to a pair of vector mesons are treated as a good probe of CP violation because of the CPT symmetry. If CPT is no longer a good symmetry, such correlations between T-odd and CP-odd…

High Energy Physics - Phenomenology · Physics 2013-06-26 Sunando Kumar Patra , Anirban Kundu

Generically, non-Standard-Model particles contribute to processes with order-one charge-parity (CP) violating phases, as CP is not a fundamental symmetry of nature. The exploration of CP violation becomes therefore a sensitive search for…

High Energy Physics - Phenomenology · Physics 2022-09-30 Avital Dery , Yuval Grossman , Stefan Schacht , Diego Tonelli