نتایج جستجو برای: gluon interaction

تعداد نتایج: 574940  

Journal: :Physical review letters 2005
P Rossi M Mirazita F Ronchetti E De Sanctis G Adams P Ambrozewicz E Anciant M Anghinolfi B Asavapibhop G Audit H Avakian H Bagdasaryan J P Ball S Barrow M Battaglieri K Beard M Bektasoglu M Bellis N Benmouna B L Berman W Bertozzi N Bianchi A S Biselli S Boiarinov B E Bonner S Bouchigny R Bradford D Branford W J Briscoe W K Brooks V D Burkert C Butuceanu J R Calarco D S Carman B Carnahan S Chen P L Cole D Cords P Corvisiero D Crabb H Crannell J P Cummings R De Vita P V Degtyarenko H Denizli L Dennis A Deppman K V Dharmawardane K S Dhuga C Djalali G E Dodge D Doughty P Dragovitsch M Dugger S Dytman O P Dzyubak H Egiyan K S Egiyan L Elouadrhiri A Empl P Eugenio R Fatemi R J Feuerbach J Ficenec T A Forest H Funsten M Gai G Gavalian S Gilad G P Gilfoyle K L Giovanetti C I O Gordon K Griffioen M Guidal M Guillo L Guo V Gyurjyan C Hadjidakis R S Hakobyan J Hardie D Heddle F W Hersman K Hicks R S Hicks M Holtrop J Hu C E Hyde-Wright Y Ilieva M M Ito D Jenkins H S Jo K Joo J D Kellie M Khandaker K Y Kim K Kim W Kim A Klein F J Klein A V Klimenko M Klusman M Kossov L H Kramer J Kuhn S E Kuhn J Lachniet J M Laget D Lawrence Ji Li A C S Lima K Livingston K Lukashin J J Manak C Marchand S McAleer J McCarthy J W C McNabb B A Mecking S Mehrabyan J J Melone M D Mestayer C A Meyer K Mikhailov R Miskimen V Mokeev L Morand S A Morrow V Muccifora J Mueller G S Mutchler J Napolitano R Nasseripour S Niccolai G Niculescu I Niculescu B B Niczyporuk R A Niyazov M Nozar J T O'Brien G V O'Rielly M Osipenko A Ostrovidov K Park E Pasyuk G Peterson S A Philips N Pivnyuk D Pocanic O Pogorelko E Polli S Pozdniakov B M Preedom J W Price Y Prok D Protopopescu L M Qin B A Raue G Riccardi G Ricco M Ripani B G Ritchie G Rosner D Rowntree P D Rubin F Sabatié C Salgado J P Santoro V Sapunenko R A Schumacher V S Serov Y G Sharabian J Shaw S Simionatto A V Skabelin E S Smith L C Smith D I Sober M Spraker A Stavinsky S Stepanyan B Stokes P Stoler I I Strakovsky S Strauch M Taiuti S Taylor D J Tedeschi U Thoma R Thompson A Tkabladze L Todor C Tur M Ungaro M F Vineyard A V Vlassov K Wang L B Weinstein H Weller D P Weygand C S Whisnant E Wolin M H Wood A Yegneswaran J Yun B Zhang Z Zhou

We investigate the transition from the nucleon-meson to the quark-gluon description of the strong interaction using the photon energy dependence of the d(gamma,p)n differential cross section for photon energies above 0.5 GeV and center-of-mass proton angles between 30 degrees and 150 degrees. A possible signature for this transition is the onset of cross-section s(-11) scaling with the total en...

1996
G. Ingelman A. Edin J. Rathsman

Physics and programming aspects are discussed for a Fortran 77 Monte Carlo program to simulate complete events in deep inelastic leptonnucleon scattering. The parton level interaction is based on the standard model electroweak cross sections, which are fully implemented in leading order for any lepton of arbitrary polarization, and di erent parametrizations of parton density functions can be us...

2004
Zhao Zhang Wei-qin Zhao

We calculate the mixed tensor susceptibility of QCD vacuum in the framework of the global color symmetry model. In our calculation, the functional integration over gluon fields can be performed and the gluonic vacuum observable can be expressed in terms of the quark operators and the gluon propagator. The mixed tensor susceptibility was obtained with the subtraction of the perturbative contribu...

2008
W. Cassing

Dynamical quasiparticle properties are determined from lattice QCD along the line of the Peshier model for the running strong coupling constant in case of three light flavors. By separating time-like and space-like quantities in the number density and energy density the effective degrees of freedom in the gluon and quark sector may be specified from the time-like densities. The space-like parts...

2005
A. Valcarce H. Garcilazo J. Vijande

We investigate the structure of the SU (3) octet and decuplet baryons employing a constituent quark model designed for the study of the baryon-baryon interaction and successfully applied to the meson spectra. The model considers through the interacting potential perturbative, one-gluon exchange, and non-perturbative, boson exchanges and confinement, aspects of the underlying theory, QCD. We sol...

1998
Krishna Rajagopal

We propose a symmetry breaking scheme for QCD with three massless quarks at high baryon density wherein the color and flavor SU(3)color×SU(3)L×SU(3)R symmetries are broken down to the diagonal subgroup SU(3)color+L+R by the formation of a condensate of quark Cooper pairs. We discuss general properties that follow from this hypothesis, including the existence of gaps for quark and gluon excitati...

2008
J. Haidenbauer

We investigate the D̄N interaction at low energies using a meson-exchange model supplemented with a short-distance contribution from one-gluon-exchange. The model is developed in close analogy to the meson-exchange KN interaction of the Jülich group utilizing SU(4) symmetry constraints. The main ingredients of the interaction are provided by vector meson (ρ, ω) exchange and higher-order box diag...

Journal: :Physical review 2021

In this work we investigate how the details of quark-gluon interaction vertex affect quantitative description chiral symmetry breaking and dynamical mass generation through gap equation. We employ Maris-Tandy (MT) Qin-Chang (QC) models for gluon propagator effective strong running coupling. The equation is solved by employing several Ans${\rm \ddot{a}}$tze which have been constructed in order t...

2006
Dirk H. Rischke

The self-energies and the spectral densities of longitudinal and transverse gluons at zero temperature in the color-flavor-locked (CFL) phase are calculated. There appears a collective excitation, a light plasmon, at energies smaller than two times the gap parameter and momenta smaller than about eight times the gap. The minimum in the dispersion relation of this mode at some nonzero value of m...

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