搜索结果: 1-15 共查到“知识库 理论物理学 QCD”相关记录63条 . 查询时间(0.125 秒)
QCD condensates for the light quark V-A correlator
Energy decay data electroweak penguin operators
2014/12/20
We use the procedure of pinched-weight finite energy sum rules to determine the operator product expansion (OPE) coefficients a6,…,a16 of the flavor ud V-A correlator in terms of existing hadronic τ d...
The talk, based on [1], analyzes the consequences of the assumption that the effects of quantum coherence and the resulting angular ordering in QCD cascades are disrupted within the hot fireball creat...
Symmetry energy of dense matter in holographic QCD
Symmetry energy dense matter holographic QCD
2010/12/24
We study the nuclear symmetry energy of dense matter using holographic QCD. To this end, we consider two flavor branes with equal quark masses in a D4/D6/D6 model. We find that at high density the sym...
QCD under magnetic field: chiral magnetic effect at heavy ion collisions
chiral-magnetic e ect vector-current correlation charge separation
2011/1/10
In this talk, we report our recent studies for the chiral magnetic e ect, which signals the P- and CP-violations at heavy ion collisions. We compute the electric current and its correlations, induced ...
Running coupling constant of ten-flavor QCD with the Schrödinger functional method
Running coupling constant ten-flavor QCD Schrö dinger functional method
2011/1/14
Walking technicolor theory attempts to realize electroweak symmetry breaking as the spontaneous
chiral symmetry breakdown caused by the gauge dynamics with slowly varying gauge coupling constant and ...
Lattice QCD at the physical point: light quark masses
Lattice QCD physical point light quark masses
2011/1/7
Ordinary matter is described by six fundamental parameters: three couplings (gravitational,
electromagnetic and strong) and three masses: the electron’s (me) and those of the up (mu)
and down (md) q...
OPE, Heavy-Quark Mass, and Heavy-Meson Decay Constants from QCD Sum Rules
OPE Heavy-Quark Mass Heavy-Meson Decay Constants from QCD Sum Rules
2011/1/7
We present a sum-rule extraction of the decay constants of heavy-lightmesons from the two-point
correlator of pseudoscalar currents [1]. To this end, we compare the perturbative expansions for the co...
Wave Functions of the Proton Ground State in the Presence of a Uniform Background Magnetic Field in Lattice QCD
Wave Functions of the Proton Ground State Uniform Background Magnetic Field
2011/1/13
We calculate the probability distributions of quarks in the ground state of the proton, and how
they are a ected in the presence of a constant background magnetic eld. We focus on wave functions in ...
Quark masses with Nf=2 twisted mass lattice QCD
Quark masses Nf=2 twisted mass lattice QCD
2011/1/13
We present the results of the recent high precision lattice calculation of the average up/down,
strange and charm quarkmasses performed by ETMC with Nf =2 twisted massWilson fermions.
The analysis i...
Non-linear QCD dynamics and exclusive production
Non-linear QCD dynamics exclusive production
2011/1/5
In this contribution we analyse the cross sections for the exclusive vector meson production as
well as the deeply virtual Compton scattering (DVCS) relying on the color dipole approach and
consider...
The aim of these lectures is to provide students with an introduction to some of the core concepts and methods of QCD that are relevant in an LHC context.
With the energy scales opened up by Rhic and Lhc the age of high-pT physics is upon us. This has created new opportunities and novel mysteries, both of which will be explored in this thesis. The possi...
Bosonic string behavior in UV filtered QCD
Bosonic Strings Finite temperature QCD Flux tubes
2011/1/13
The quark–antiquark potential and the gluonic action-density are calculated on sets of smeared gauge-field configurations at finite temperature just below the deconfinement temperature.
QCD, monopoles on the Lattice and gauge invariance
QCD Lattice Monopoles Color confinement
2011/1/13
The number and the location of the monopoles observed on the lattice in QCD configurations happens to depend strongly on the choice of the gauge used to expose them, in contrast to the physical expect...
Heavy-Quark Mass and Heavy-Meson Decay Constants from QCD Sum Rules
nonperturbative QCD, QCD sum rules quark–hadron duality continuum threshold charmed or beauty meson heavy-quark mass
2011/1/7
We present a sum-rule extraction of decay constants of heavy mesons from the two-point correlator of heavy-light pseudoscalar currents.