English
Related papers

Related papers: Parity-Violating Interaction Effects I: the Longit…

200 papers

We report on a new measurement of the parity-violating asymmetry in quasielastic electron scattering from the deuteron at backward angles at Q2= 0.038 (GeV/c)2. This quantity provides a determination of the neutral weak axial vector form…

Nuclear Experiment · Physics 2014-11-18 SAMPLE collaboration , T. M. Ito

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…

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

We report on parity-violating asymmetries in the nucleon resonance region measured using $5 - 6$ GeV longitudinally polarized electrons scattering off an unpolarized deuterium target. These results are the first parity-violating asymmetry…

A new approach is proposed to describe the parity violation in the process of scattering of a polarized proton by a proton at high energies. It is shown that in the tree approximation the P-odd amplitude of proton-proton scattering is…

High Energy Physics - Phenomenology · Physics 2020-08-07 A. I. Milstein , N. N. Nikolaev , S. G. Salnikov

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from protons. Significant contributions to this asymmetry could arise from the contributions of strange form factors in the…

Nuclear Experiment · Physics 2012-08-27 HAPPEX Collaboration

We analyze the dispersion correction to elastic parity violating electron-proton scattering due to $\gamma Z$ exchange. In particular, we explore the theoretical uncertainties associated with modeling contributions of hadronic intermediate…

Nuclear Theory · Physics 2011-08-22 Mikhail Gorchtein , C. J. Horowitz , Michael J. Ramsey-Musolf

The electroweak interaction at the level of quarks and gluons are well understood from precision measurements in high energy collider experiments. Relating these fundamental parameters to Hadronic Parity Violation in nuclei however remains…

High Energy Physics - Lattice · Physics 2015-11-10 Thorsten Kurth , Evan Berkowitz , Enrico Rinaldi , Pavlos Vranas , Amy Nicholson , Mark Strother , Andre Walker-Loud

By looking at the parity-nonconserving (PNC) asymmetries at different energies in $\vec{p} p$ scattering, it is in principle possible to determine the PNC $\rho NN$ and $\omega NN$ couplings of a single-meson-exchange model of the PNC $NN$…

Nuclear Theory · Physics 2009-11-11 C. -P. Liu , C. H. Hyun , B. Desplanques

Parity nonconserving two-pion exchange in elastic pp scattering is investigated in the presence of phenomenological strong distortions in various models. Parity violation is included in the nucleon-pion vertex considering NN and N…

Nuclear Theory · Physics 2008-11-26 J. A. Niskanen , T. M. Partanen , M. J. Iqbal

We explore two longitudinal single-spin asymmetries induced from parity violation in neutral-current deep inelastic scattering at the proposed Electron-ion collider in China (EicC): $A_{PV}^{e\,(p)}$ from longitudinally polarized…

High Energy Physics - Phenomenology · Physics 2025-03-13 Yong Du

The general expressions for parity violation observables in elastic scattering of polarized and/or unpolarized electrons from unpolarized deuterons are given and are numerically evaluated for the kinematics of SAMPLE, PVA4 and G0…

Nuclear Theory · Physics 2015-05-13 S. Ahmad , S. K. Singh , H. Arenhoevel

The parity-violating quasielastic electron scattering response is explored within the context of a model that builds antisymmetrized random phase approximation and Hartree-Fock correlations on a relativistic Fermi gas basis. Particular…

Nuclear Theory · Physics 2007-05-23 A. De Pace

A measurement of parity-violating spin-dependent gamma proton Compton scattering will provide a theoretically clean determination of the parity-violating pion-nucleon coupling constant $h_{\pi NN}^{(1)}$. We calculate the leading…

Nuclear Theory · Physics 2009-10-31 Paulo F. Bedaque , Martin J. Savage

The $Q_{weak}$ Collaboration has completed a challenging measurement of the parity-violating asymmetry in elastic electron-proton ($\vec{e}$p) scattering at the Thomas Jefferson National Accelerator Facility (Jefferson Lab). The initial…

Nuclear Experiment · Physics 2015-10-02 Manolis Kargiantoulakis

Two-pion exchange parity-violating nucleon-nucleon interactions from recent effective field theories and earlier fully covariant approaches are investigated. The potentials are compared with the idea to obtain better insight on the role of…

Nuclear Theory · Physics 2008-11-26 B. Desplanques , C. H. Hyun , S. Ando , C. -P. Liu

We analyze the parity-violating (PV) components of the analyzing power in elastic electron-proton scattering and discuss their sensitivity to the strange quark contributions to the proton weak form factors. We point out that the component…

Nuclear Theory · Physics 2009-10-31 M. Moscani , B. Mosconi , P. Ricci

Parity-violating elastic electron-nucleon scattering at low momentum transfer allows one to access the nucleon's weak charge, the vector coupling of the $Z$-boson to the nucleon. In the Standard Model and at tree level, the weak charge of…

Nuclear Theory · Physics 2016-11-23 Mikhail Gorchtein , Hubert Spiesberger

Polarized beam gamma p Compton scattering provides a theoretically clean way to extract the isovector parity violating pion-nucleon coupling constant $h_{\pi NN}^{(1)}$. This channel is more tractable experimentally than the recently…

Nuclear Theory · Physics 2009-11-06 Jiunn-Wei Chen , Thomas D. Cohen , Chung Wen Kao

The effects of parity violation in the interaction of relativistic polarized protons and deuterons are discussed. Within Glauber's approach, estimates are obtained for P-odd asymmetries in the total and elastic scattering cross sections, in…

High Energy Physics - Phenomenology · Physics 2021-07-27 A. I. Milstein , N. N. Nikolaev , S. G. Salnikov