Nonperturbative estimate of the heavy quark momentum diffusion coefficient

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Nonperturbative estimate of the heavy quark momentum diffusion coefficient

A. Francis, O. Kaczmarek, M. Laine, T. Neuhaus, and H. Ohno Department of Physics and Astronomy, York University, Toronto, Ontario M3J1P3, Canada Faculty of Physics, University of Bielefeld, 33501 Bielefeld, Germany ITP, AEC, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland Helsinki Institute of Physics, P.O. Box 64, 00014 University of Helsinki, Finland Institute for Advanced Simula...

متن کامل

Nonperturbative heavy-quark diffusion in the quark-gluon plasma.

We evaluate heavy-quark (HQ) transport properties in a quark-gluon plasma (QGP) within a Brueckner many-body scheme employing interaction potentials extracted from thermal lattice QCD. The in-medium T matrices for elastic charm- and bottom-quark scattering off light quarks in the QGP are dominated by attractive meson and diquark channels which support resonance states up to temperatures of ~1.5...

متن کامل

THE ROLE OF QUARK POLARIZATION IN HEAVY QUARK FRAGMENTATION

We calculate the exact fragmentation functions for c and b quark fragmentation taking into account the spin orientation of the initial heavy quark in the form of analytical and rather simple expressions. Our calculations show that spin orientation may have an important effect on the fragmentation spectrum. This effect is more striking in the cases of c ?D, D*; c? ? , ? , and ?B , B *.

متن کامل

On the short distance nonperturbative corrections in heavy quark expansion

We study the corrections due to renormalons to the heavy hadron decay width. The renormalons contribution estimated in terms of finite gluon mass based on the assumption that the gluon mass represents the short distance nonperturbative effects in the standard OPE (and hence in the heavy quark expansion). We found that the corrections are about 10% of the leading decay rate. We point out the imp...

متن کامل

Transverse momentum distributions for heavy quark pairs.

We study the transverse momentum distribution for a pair of heavy quarks produced in hadron-hadron interactions. Predictions for the large transverse momentum region are based on exact order αs QCD perturbation theory. For the small transverse momentum region, we use techniques for all orders resummation of leading logarithmic contributions associated with initial state soft gluon radiation. Th...

متن کامل

ذخیره 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: Physical Review D

سال: 2015

ISSN: 1550-7998,1550-2368

DOI: 10.1103/physrevd.92.116003