搜索结果: 1-15 共查到“理学 parity violating”相关记录18条 . 查询时间(0.155 秒)
ELECTROWEAK CORRECTIONS TO PARITY-VIOLATING NEUTRAL CURRENT SCATTERING
Resonance weak neutral axis vector transitional form axial vector electroweak radiation elastic electron scattering
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2014/12/23
We analyze the degree to which parity-violating (PV) electroexcitation of the Δ(1232) resonance may be used to extract the weak neutral axial vector transition form factors. We find that the axial vec...
Nucleon anapole moment and parity-violating ep scattering
Quark nuclear Parity - violating coupling weak electricity chiral perturbation
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2014/12/22
Parity-violating (PV) interactions among quarks in the nucleon induce a PV γNN coupling, or anapole moment (AM). We compute electroweak gauge-independent contributions to the AM through O(1/Λχ2) in ch...
Chiral symmetry and the parity-violating NN pi Yukawa coupling
Lagrange differential pv coupling constant the standard model
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2014/12/22
We construct the complete SU(2) parity-violating (PV) π,N,Δ interaction Lagrangian with one derivative, and calculate the chiral corrections to the PV Yukawa NNπ coupling constant hπ through O(1/Λχ3) ...
Subleading corrections to parity-violating pion photoproduction
Light photons meson photovoltaic coupling
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2014/12/22
We compute the photon asymmetry Bγ for near threshold parity-violating (PV) pion photoproduction through subleading order. We show that subleading contributions involve a new combination of PV couplin...
Parity-violating photoproduction of pi(+/-) on the Delta resonance
Asymmetry of real - photon resonance asymmetric nonzero coupling dynamic hadron p-wave mystery hyperon in violation of the o 'hara theorem of weak radiation hyperon decay
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2014/12/22
We analyze the real-photon asymmetry Aγ± for the parity-violating (PV) π± production on the Δ resonance via the reactions γ⃗+p→Δ+→π++n and γ⃗+d→Δ0+p→π-+p+p. This asymmetry is nonvanishing ...
Nucleon structure and parity-violating electron scattering
Contribution to the quark nuclear structure quark model vector current nuclear elastic electron scattering
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2014/12/22
We review the area of strange quark contributions to nucleon structure. In particular, we focus on current models of strange quark vector currents in the nucleon and the associated parity-violating el...
Electroweak radiative corrections to parity-violating electroexcitation of the Delta
Axial vector and axis vector electroweak radiation elastic electron scattering
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2014/12/22
We analyze the degree to which parity-violating (PV) electroexcitation of the Δ(1232) resonance may be used to extract the weak neutral axial vector transition form factors. We find that the axial vec...
Measurement of the Parity Violating Asymmetry in Elastic Electron Scattering off 208Pb
Jefferson Lab parity violating electron scattering scattering asymmetry neutron skin thickness
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2014/11/20
The Lead Radius Experiment (PREX) was carried out in order to provide a model independent measurement of the RMS radius √ < r2 >of the neutron distribution in the 208Pb nucleus. The parity-violating s...
Probing Novel Properties of Nucleons and Nuclei via Parity Violating Electron Scattering
asymmetry happex parity prex quarks strange
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2014/11/20
This thesis reports on two experiments conducted by the HAPPEx (Hall A Proton Parity Experiment) collaboration at the Thomas Jefferson National Accelerator Facility. For both, the weak neutral current...
The Time-Reversal- and Parity-Violating Nuclear Potential in Chiral Effective Theory
Time-Reversal Parity-Violating Nuclear Potential
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2011/7/20
We derive the parity- and time-reversal-violating nuclear interactions stemming from the QCD theta term and quark/gluon operators of effective dimension 6: quark electric dipole moments, quark and glu...
Black hole perturbation in parity violating gravitational theories
Black hole perturbation parity violating gravitational theories
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2011/10/14
We study linear perturbations around the static and spherically symmetric spacetime for the gravitational theories whose Lagrangian depends on Ricci scalar and the parity violating Chern-Simons term. ...
Model-dependence of the $γZ$ dispersion correction to the parity-violating asymmetry in elastic $ep$ scattering
Model-dependence parity-violating asymmetry
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2011/4/7
Model-dependence of the $γZ$ dispersion correction to the parity-violating asymmetry in elastic $ep$ scattering 。
Gamma-Z box contributions to parity violating elastic e-p scattering
Gamma-Z box contributions parity violating elastic e-p scattering
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2011/1/7
Parity-violating (PV) elastic electron-proton scattering measures Q-weak for the proton, QpW
. To extract QpW from data, all radiative corrections must be well-known. Recently, disagreement on the gZ...
Search for Squarks in R-parity Violating Supersymmetry in ep Collisions at HERA
Squarks R-parity Violating Supersymmetry ep Collisions at HERA
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2011/1/4
A search for squarks in R–parity violating supersymmetry is performed in e±p collisions
at HERA using the H1 detector. The full data sample taken at a centre–of–mass
energy √s = 319 GeV is used for ...
Recent results of two-boson-exchange effects in the parity-violating elastic electron-proton scattering
two-boson-exchange parity-violation elastic electron-proton scattering strange quark form factor
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2009/11/24
The results of two-boson-exchange effects in the parity-violating elastic electron-proton scattering are reported based on a simple hadronic model. The corrections are calculated including the nucleon...