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Flavor asymmetry of the polarized sea-quark distributions in the proton
Flavor asymmetry polarized sea-quark distribution proton
2010/3/16
The recent global analysis of helicity parton distributions, which takes into account available data from inclusive and semi-inclusive polarized deep inelastic scattering, as well as from polarized pr...
Left-right asymmetry for meson production in SIDIS process
semi-inclusive deep inelastic scattering transversity left-right asymmetry
2009/11/24
We analyze the left-right asymmetry in the semi-inclusive deep inelastic scattering (SIDIS) process using a method where no weighting function are used. Considering all flavor of quarks, we reanalyze ...
A new beam asymmetry measurement from pion photoproduction on the neutron using CLAS
beam asymmetry photonuclear photoproduction neutron pion
2009/11/24
We present a preliminary analysis of the photon beam asymmetry observable
(Σ) from the photoproduction reaction channel γn→pπ－ in the invariant mass range 1.6—2.3 GeV. The measurement was obtained us...
Effect of entrance-channel asymmetry on the isospin dependence of nucleon emission in heavy ion collisions
neutron to proton ratio symmetry energy isospin asymmetry of reaction system hadronic transport model
2009/8/14
Using the isospin- and momentum-dependent hadronic transport model IBUU04, we have investigated the influence of the entrance-channel isospin asymmetry on the sensitivity of the pre-equilibrium neutro...
Effects of the Left-Right Asymmetry Parameter in the End Point of the Tritium-Beta Spectrum
Models beyond the standard model Neutrino mass and mixing Beta decay Models beyond the standard model Neutrino mass and mixing Beta decay
2010/4/9
We start with a Left-Right Symmetric Model and we analyze the endpoint of the beta decay of tritium 3H \rightarrow 3He + e- + bar{n}e. We applied this model to incorporate the right currents, whereby ...
The Zero Position of the Forward-Backward Asymmetry in the B \rightarrow K\ell+\ell- Decay with New Physics Effects
B-decays Standard Model forward-backward asymmetry zero position of the lepton asymmetry
2010/4/12
Using the most general model-independent effective Hamiltonian comprising local four-Fermi operators (scalar, vector, and tensor operators), we study the sensitivity of the zero position of the lepton...