搜索结果: 151-165 共查到“物理学 QCD”相关记录265条 . 查询时间(0.031 秒)
Semileptonic decays of K and D mesons in 2+1 flavor QCD
Semileptonic decays of K D mesons 2+1 flavor QCD
2011/1/6
The experimentally measured rates of the semileptonic decays K →p ln and D → K(p )ln can
be combined with lattice calculations of the associated form factors to precisely extract the CKM matrix eleme...
Poisson Statistics in the High Temperature QCD Dirac Spectrum
Poisson Statistics High Temperature QCD Dirac Spectrum
2011/1/14
At low temperature in the epsilon regime of QCD the low-end of the Dirac spectrum is described
by random matrix theory. In contrast, there has been no similarly well established staistical descriptio...
The phase boundary for the chiral transition in (2+1)-flavor QCD at small values of the chemical potential
phase boundary for the chiral transition (2+1)-flavor QCD small values
2011/1/14
We determine the chiral phase transition line in (2+1)-flavor QCD for small values of the light
quark chemical potential. We show that for small values of the chemical potential the curvature
of the...
Recent progress on nuclear potentials from lattice QCD
Recent progress nuclear potentials lattice QCD
2011/1/10
A new method for nuclear potentials is reviewed. The strategy to extract the potential from the
Nambu-Bethe-Salpeter wave function in lattice QCD is explained and the first result based on the method...
Lattice QCD at the physical point: Simulation and analysis details
Lattice QCD physical point Simulation analysis details
2011/1/14
We give details of our precise determination of the light quark masses mud = (mu+md)/2 and ms in 2+1 flavor QCD, with simulated pion masses down to 120MeV, at five lattice spacings, and in large volum...
EOS in 2+1 flavor QCD with improved Wilson quarks by the fixed-scale approach
EOS 2+1 flavor QCD improved Wilson quarks fixed-scale approach
2011/1/14
We present the status of our study on the equation of state in 2+1 flavor QCD with nonperturbatively improved Wilson quarks coupled with the RG improved glue. We apply the Tintegration method to non-p...
Non-equilibrium fluctuations at the QCD phase transition
Non-equilibrium fluctuations QCD phase transition
2011/1/7
We study the chiral phase transition by the non-equilibrium propagation of the sigma field. A quark fluid acts as a heat bath in local thermal equilibrium and evolves fluid dynamically.
Semileptonic decays of K and D mesons in 2+1 flavor QCD
Semileptonic decays of K D mesons 2+1 flavor QCD
2011/1/14
The experimentally measured rates of the semileptonic decays K →p ln and D → K(p )ln can
be combined with lattice calculations of the associated form factors to precisely extract the CKM matrix eleme...
Modeling QCD for Hadron Physics
Non-perturbative QCD hadron physics Dyson Schwinger equations light quark mesons pseuodoscalar decay constants,
2011/1/7
We review the approach to modeling soft hadron physics observables based on the Dyson-Schwinger equations of QCD.
Soft QCD Results from D0
Soft QCD D0
2011/1/5
This note presents some selected results on soft QCD studies done by the D0 collaboration at the Tevatron collider. Results on elastic proton-antiproton cross section, double parton scattering, underl...
How Perfect a Gluon Plasma Can Be in Perturbative QCD?
Gluon Plasma Can Be Perturbative QCD
2011/1/10
The shear viscosity to entropy density ratio, /s, characterizes how perfect a fluid is. We calculate the leading order /s of a gluon plasma in perturbation using the kinetic theory. The leading orde...
Exclusive Processes Induced By Antiprotons: Opportunities for QCD Studies
Exclusive Processes Antiprotons: Opportunities QCD Studies
2011/1/10
The detection of exclusive processes induced by antiproton beams in the GeV range at PANDA(FAIR) opens possibilities for testing QCD predictions on the nucleon structure. In particular, the measuremen...
Resonance Parameters of the rho-Meson from Lattice QCD
pion-pion scattering phase -meson resonance parameters lattice QCD
2011/1/6
We perform a non-perturbative lattice calculation of the P-wave pion-pion scattering phase in
the -meson decay channel using two flavors of maximally twisted mass fermions at pion masses
ranging fr...
We construct the transfer matrix for the ghost sector of partially quenched QCD. This transfer matrix is not hermitian, but we show that it is still bounded. We thus expect that all euclidean correlat...
Non-perturbative renormalization of quark mass in Nf=2+1 QCD with the Schroedinger functional scheme
Non-perturbative renormalization quark mass in Nf=2+1 QCD
2011/1/6
We present an evaluation of the quark mass renormalization factor for Nf=2+1 QCD. The Schroedinger functional scheme is employed as the intermediate scheme to carry out non-perturbative running from t...