搜索结果: 1-15 共查到“理学 Parity”相关记录72条 . 查询时间(0.06 秒)
ELECTROWEAK CORRECTIONS TO PARITY-VIOLATING NEUTRAL CURRENT SCATTERING
Resonance weak neutral axis vector transitional form axial vector electroweak radiation elastic electron scattering
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
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
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
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
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
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
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...
Nuclear parity violation in effective field theory
Photovoltaic (pv) nuclear nuclear parameterized coupling
2014/12/20
We reformulate the analysis of nuclear parity violation (PV) within the framework of effective field theory (EFT). To O(Q), the PV nucleon–nucleon (NN) interaction depends on five a priori unknown con...
Interferometry with independent Bose-Einstein condensates: parity as an EPR/Bell quantum variable
Condensate quantum mechanical interferometer binary particles
2014/12/19
When independent Bose-Einstein condensates (BEC), described quantum mechanically by Fock (number) states, are sent into interferometers, the measurement of the output port at which the particles are d...
Hormones, growth factors, and the regulation of tumor suppressor pathways involved in parity -induced protection of breast cancer
Women with breast cancer cases diagnosis and reproduction exogenous hormones ionizing radiation genetic factors
2014/12/11
Despite current advances in understanding breast cancer, in 2007 an estimated 178,480 new cases were diagnosed in female patients in the United States, and an estimated 40,640 deaths will occur due to...
Regulation of mammary stem/progenitor cells by p53 and parity
Biological sciences Progenitor cells Adult stem cells Breast neoplasms Li-fraumeni syndrome Mammary gland Notch proteins Tumor suppressor protein p53
2014/12/10
Breast cancer is the most common tumor among women with inherited mutations in the p53 gene (Li-Fraumeni syndrome). The tumors represent the basal-like subtype which has been suggested to originate fr...
Discrete Parity-Time Symmetric Nonlinear Schrodinger Lattices
Lattices Parity-time Symmetry Schrodinger
2014/12/8
In this thesis we summarize the classical cases of one-dimensional oligomers and two dimensional plaquettes, respecting the parity-time (PT ) symmetry. We examine different types of solutions of such ...
Measurement of the Parity Violating Asymmetry in Elastic Electron Scattering off 208Pb
Jefferson Lab parity violating electron scattering scattering asymmetry neutron skin thickness
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
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...
Parity Violation in Neutron Deuteron Scattering in Pionless Effective Field Theory
Parity Violation Neutron Deuteron Scattering Painless Effective Field Theory
2014/11/20
In this dissertation the parity violating neutron deuteron scattering amplitudes are calculated using pionless effective field theory to leading order. The five low energy parity violating constants p...