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Related papers: Atomic parity violation and the standard model

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I review recent progress and developments in parity-violating electron scattering as it bears on three topics: strange quarks and hadron structure, electroweak radiative corrections, and physics beyond the Standard Model. I also discuss…

Nuclear Theory · Physics 2009-11-11 M. J. Ramsey-Musolf

We report on progress towards performing precision measurements of parity violation in Yb, in which the theoretical prediction for a strong weak-interaction-induced effect in the 6s^{2} ^{1}S_{0} \rightarrow 5d6s ^{3}D_{1} optical…

Atomic Physics · Physics 2017-09-01 D. Antypas , A. Fabricant , L. Bougas , K. Tsigutkin , D. Budker

We report on a possibility of measuring parity violating effects in radiative neutrino pair emission from metastable atoms; asymmetric angular distribution of emitted photons from oriented atoms and emergent circular polarization. Their…

High Energy Physics - Phenomenology · Physics 2014-11-20 M. Yoshimura , A. Fukumi , N. Sasao , T. Yamaguchi

We review recent progress in the theoretical description of hadronic parity violation in few-nucleon systems. After introducing the different methods that have been used to study parity-violating observables we discuss the available…

Nuclear Theory · Physics 2015-07-14 Matthias R. Schindler , Roxanne P. Springer

This is a personal recollection of the time when the search for APV was beginning. In spite of today's remarkable results, summarized here, there are still important goals to be achieved. I indicate a possible way to tackle the remaining…

Atomic Physics · Physics 2022-03-02 Marie-Anne Bouchiat

Searches for parity violation at particle physics collider experiments without polarised initial states or final-state polarimeters lack a formal framework within which some of their methods and results can be efficiently described. This…

High Energy Physics - Phenomenology · Physics 2021-11-12 Christopher G. Lester

In a recent Letter [B. K. Sahoo, B. P. Das, and H. Spiesberger, Phys. Rev. D 103, L111303 (2021)], a calculation of the parity violating 6S-7S E1 amplitude in Cs is reported, claiming an uncertainty of just 0.3%. In this Comment, we point…

High Energy Physics - Phenomenology · Physics 2022-02-02 B. M. Roberts , J. S. M. Ginges

High precision measurements of the parity-violating asymmetry in polarized electron scattering from nuclei can be used to extract information on nuclear and nucleon structure or to determine Standard Model couplings and higher-order…

Nuclear Theory · Physics 2015-04-15 O. Moreno , T. W. Donnelly

Parity violation in QCD process is studied using helicity dependent top quark pair productions at Large Hadron Collider experiment. Though no violation can be found in the standard model (SM), new physics beyond the SM predicts the…

High Energy Physics - Phenomenology · Physics 2013-05-30 Naoyuki Haba , Kunio Kaneta , Shigeki Matsumoto , Takehiro Nabeshima , Soshi Tsuno

Knowledge about parity-violating effects both from theory and experiment is reviewed. Further information that could be obtained from measurements of nuclear anapole moments is discussed.

Nuclear Theory · Physics 2017-08-23 Bertrand Desplanques

In the last decade, the scattering of polarized neutrons on compound nucleus resonances proved to be a powerful experimental technique for probing nuclear parity violation. Longitudinal analyzing powers in neutron transmission measurements…

Nuclear Theory · Physics 2009-11-07 A. C. Hayes , Luca Zanini

Non-Standard-Model parity violation may be occurring in LHC collisions. Any such violation would go unseen, however, as searches are for it are not currently performed. One barrier to searches for parity violation is the lack of…

High Energy Physics - Phenomenology · Physics 2022-10-21 Christopher G. Lester , Radha Mastandrea , Daniel Noel , Rupert Tombs

The impact of atomic parity violation experiments on determination of the weak mixing parameter $\sin^2 \theta$ and the Peskin-Takeuchi parameters $S$ and $T$ is reassessed in the light of recent electroweak measurements at LEP, SLAC, and…

High Energy Physics - Phenomenology · Physics 2016-08-24 Jonathan L. Rosner

I discuss the theoretical motivations for R-parity violation, review the experimental bounds and outline the main changes in collider phenomenology compared to conserved R-parity. I briefly comment on the effects of R-parity violation on…

High Energy Physics - Phenomenology · Physics 2009-10-30 Herbi Dreiner

In a recent paper (arXive:hep-ph/0406125) entitled {\em Parity violation in hot QCD: why it can happen, and how to look for it}, D. Kharzeev argues for the possibility of P- and/or CP- violation effects in heavy-ion collisions, the effects…

High Energy Physics - Phenomenology · Physics 2009-11-10 Sergei A. Voloshin

Parity violation in elastic electron-nucleon scattering is studied with the basic goal of improving the understanding of electroweak hadronic structure with special emphasis on the strangeness content in the nucleon. Models for the…

Nuclear Theory · Physics 2014-08-12 R. González-Jiménez , J. A. Caballero , T. W. Donnelly

This two-part article considers certain fundamental symmetries of nature, namely the discrete symmetries of parity (P), charge conjugation (C) and time reversal (T), and their possible violation. Recent experimental results are discussed in…

Popular Physics · Physics 2007-05-23 B. Ananthanarayan , J. Meeraa , Bharti Sharma , Seema Sharma , Ritesh K. Singh

The dysprosium parity violation experiment concluded nearly 17 years ago with an upper limit on weak interaction induced mixing of nearly degenerate, opposite parity states in atomic dysprosium. While that experiment was limited in…

Atomic Physics · Physics 2014-12-04 N. Leefer , L. Bougas , D. Antypas , D. Budker

Recently at JLab using polarised electron beam on unpolarised deuteron target measurements have been performed for the parity violating asymmetry($A_{PV}$) and there are future plans to measure this asymmetry using various nuclear targets.…

Nuclear Theory · Physics 2015-09-30 H. Haider , M. Sajjad Athar , S. K. Singh , I. Ruiz Simo

The origin of parity violation in physics is still unknown. At the present time, it is introduced in the theory by requiring that the SU(2) subgroup entering the description of interactions involves the left components. In the present…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Desplanques