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The parity-violating nucleon-nucleon interaction is the key to understanding the strangeness-conserving hadronic weak interaction at low energies. In this brief talk, I review the past accomplishments in and current status of this subject,…

Nuclear Theory · Physics 2008-11-26 C. -P. Liu

The extraction of the strangeness form factors from parity violating elastic electron-proton scattering is sensitive to the electromagnetic form factors at low Q^2. We provide parameterizations for the form factors and uncertainties,…

Nuclear Theory · Physics 2008-11-26 John Arrington , Ingo Sick

One loop electroweak radiative corrections to left-right parity violating M{\o}ller scattering ($e^-e^-\to e^-e^-$) asymmetries are presented. They reduce the standard model (tree level) prediction by 40$\pm 3$ \% where the main shift and…

High Energy Physics - Phenomenology · Physics 2016-08-24 Andrzej Czarnecki , William J. Marciano

The parity violating longitudinal asymmetry ${\cal A}$ is calculated for quasielastic electron scattering. We use a variety of relativistic mean field models for the response of nuclear matter and $^{12}$C at a momentum transfer of q=550…

Nuclear Theory · Physics 2008-11-26 C. J. Horowitz , J. Piekarewicz

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

We present an analysis of elastic and quasielastic parity-violating (PV) electron scattering processes. These reactions can help to constrain the weak neutral current form factors of the nucleon that play an essential role in the…

Nuclear Theory · Physics 2020-01-27 R. González-Jiménez , J. A. Caballero , T. W. Donnelly

The electromagnetic and weak neutral current matrix elements that enter in the analysis of parity-violating quasielastic electron scattering are calculated using a continuum nuclear shell model. New approximations to the on-shell…

Nuclear Theory · Physics 2008-11-26 J. E. Amaro , J. A. Caballero , T. W. Donnelly , A. M. Lallena , E. Moya de Guerra , J. M. Udias

The utility of polarized electron beams for precision electroweak studies is described. Parity violating Moller scattering asymmetries in e-e- --> e-e- are discussed. Effects of electroweak radiative corrections and the running…

High Energy Physics - Phenomenology · Physics 2015-06-25 Andrzej Czarnecki , William J. Marciano

The parity-violating asymmetries between a longitudinally-polarized electron beam and an unpolarized deuterium target have been measured recently. The measurement covered two kinematic points in the deep inelastic scattering region and five…

We compute contributions to the parity-violating (PV) inelastic electron-deuteron scattering asymmetry arising from hadronic PV. While hadronic PV effects can be relatively important in PV threshold electro- disintegration, we find that…

Nuclear Theory · Physics 2009-11-07 C. -P. Liu , G. Prezeau , M. J. Ramsey-Musolf

We start with a brief presentation of the Standard Model and the weak neutral current, in view of a discussion of parity-violation in electron-hadron electroweak interactions. We then discuss some limitations of this model, motivating the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Pierre Fayet

Atomic Parity Violation (APV) is usually quantified in terms of the weak nuclear charge $Q_W$ of a nucleus, which depends on the coupling strength between the atomic electrons and quarks. In this work, we review the importance of APV to…

High Energy Physics - Phenomenology · Physics 2019-06-13 Giorgio Arcadi , Manfred Lindner , Jessica Martins , Farinaldo S. Queiroz

We compute the corrections from two-photon and photon-Z exchange in parity-violating elastic electron-proton scattering, used to extract the strange form factors of the proton. We use a hadronic formalism that successfully reconciled the…

Nuclear Theory · Physics 2014-11-18 J. A. Tjon , W. Melnitchouk

The parity-violating electron scattering community has made tremendous progress over the last twenty five years in their ability to measure tiny asymmetries of order 100 parts per billion (ppb) with beam-related corrections and systematic…

Nuclear Experiment · Physics 2014-10-17 Robert Michaels

A wide array of deep-inelastic-scattering and hadron collider experiments have tested the predictions of the electroweak theory and measured its parameters, while also searching for new particles and processes. We summarise recent…

High Energy Physics - Experiment · Physics 2008-09-18 Christopher Hays , Michael Krämer , David M. South , Aleksander Filip Żarnecki

We explore the sensitivity of the parity-violating electron scattering (PVES) asymmetry in both elastic and deep-inelastic scattering to the properties of a dark photon. Given advances in experimental capabilities in recent years, there are…

High Energy Physics - Phenomenology · Physics 2022-07-05 A. W. Thomas , X. G. Wang , A. G. Williams

High quality polarized electron beams at Jefferson Lab make possible precision measurements of hadronic properties in the regime of strongly interacting QCD. We will describe a few programs at Jefferson Lab that are making measurements that…

Nuclear Experiment · Physics 2014-11-18 Elton S. Smith

We consider prospects for studying the parity-violating (PV) electroweak excitation of the \Delta(1232) resonance with polarized electron scattering. Given present knowledge of Standard Model parameters, such PV experiments could allow a…

Nuclear Theory · Physics 2009-10-31 N. C. Mukhopadhyay , M. J. Ramsey-Musolf , S. J Pollock , J. Liu , H. -W. Hammer

The role of relativistic corrections associated with lower Dirac components of the deuteron wavefunction, is examined for parity-violating (PV) electron scattering. The relation between these corrections and negative energy components of…

Nuclear Theory · Physics 2009-10-30 G. I. Poulis

Studies of the effects of the weak interaction in atomic systems provide tests of the Standard Model of particle physics, and explore physics scenarios beyond the Standard Model. In addition, these studies can offer valuable insights into…

Atomic Physics · Physics 2024-11-21 Stefanos Nanos , Iraklis Papigkiotis , Dionysios Antypas