Non-Abelian Dynamics and Heavy Multiquarks
نویسندگان
چکیده
منابع مشابه
Non-abelian Equilibration in Heavy Ion Collisions
The uncertainty in the equilibration in heavy ion collisions due to the choice of the value of the coupling is examined. The results of the equilibration are indeed affected by this choice. In particular, a variation of αs from 0.3 to 0.5 reduces the parton phase of the plasma by as much as 4.0 fm/c and increasing coupling causes a reduction in the generated entropy. As far as equilibration is ...
متن کاملDynamics of Non-Abelian Vortices
The scattering is studied using moduli space metric for well-separated vortices of nonAbelian vortices in (2+1)-dimensional U(N) gauge theories with N Higgs fields in the fundamental representation. Unlike vortices in the Abelian-Higgs model, dynamics of nonAbelian vortices has a lot of new features; The kinetic energy in real space can be transfered to that of internal orientational moduli and...
متن کاملNon-Abelian Dipole Radiation and the Heavy Quark Expansion
Dipole radiation in QCD is derived to the second order in αs. A power-like evolution of the spin-singlet heavy quark operators is obtained to the same accuracy. In particular, O(α2 s) relation between a short-distance low-scale running heavy quark mass and the MS mass is given. We discuss the properties of the effective QCD coupling α s (E) which governs the dipole radiation. This coupling is a...
متن کاملVortex Dynamics in Non–Abelian Spin Models
We discuss the abelian vortex dynamics in the abelian projection approach to non-abelian spin models. We show numerically that in the three-dimensional SU(2) spin model in the Maximal Abelian projection the abelian off-diagonal vortices are not responsible for the phase transition contrary to the diagonal vortices. A generalization of the abelian projection approach to SU(N) spin models is brie...
متن کاملNon-Abelian vortices and non-Abelian statistics.
We study the interactions of non-abelian vortices in two spatial dimensions. These interactions have novel features, because the Aharonov-Bohm effect enables a pair of vortices to exchange quantum numbers. The cross section for vortex-vortex scattering is typically a multi-valued function of the scattering angle. There can be an exchange contribution to the vortex-vortex scattering amplitude th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Few-Body Systems
سال: 2011
ISSN: 0177-7963,1432-5411
DOI: 10.1007/s00601-010-0195-4