Quenched Scaling Study of Charm and Bottom Systems with a Relativistic Heavy Quark Action

نویسنده

  • Y. Kuramashi
چکیده

CP-PACS Collaborations: Y. Kuramashi∗a,b †, S. Aokib,c, O. Bärb, K.-I. Ishikawag, T. Ishikawaa, N. Ishizukaa,b, Y. Iwasakib, K. Kanayab, T. Kanekoe, f , M. Okawag, Y. Taniguchia,b, N. Tsutsuie, A. Ukawaa,b, N. Yamadae and T. Yoshiéa,b a Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan b Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan c Riken BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA d Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan e High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan f School of High Energy Accelerator Science, The Graduate University for Advanced Studies (Sokendai), Tsukuba 305-0801, Japan g Department of Physics, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Non-Perturbative Improvement of the Anisotropic Wilson QCD Action

The simulation of charm or bottom quarks on (a sequence of) lattices with amq≪1 is currently not affordable, even in the quenched approximation. Since standard lattice actions break down when amq>1, one must design special actions to study heavy quarks. Currently two approaches are widely used: (i) Non-relativistic lattice QCD (NRQCD) [1], and (ii) the “heavy relativistic” or “Fermilab” approac...

متن کامل

Bottom spectroscopy on dynamical 2+1 flavor domain wall fermion lattices with a relativistic heavy quark action

Following the successful application of the relativistic heavy quark(RHQ) action to the charmonium and charm-strange meson spectrum, we study here the bottom system to explore the validity of this method in a regime with larger heavy quark momenta. The spectrum is calculated using the same dynamical 2+1 flavor, 243×64 domain wall fermion lattice configurations generated by the RBC and UKQCD col...

متن کامل

S and P - wave heavy - light mesons in lattice NRQCD

The mass spectrum of S and P-wave mesons containing a single heavy quark is computed in the quenched approximation, using NRQCD up to third order in the inverse heavy quark mass expansion. Previous results found the expansion to break down near the charm quark mass for the S-wave spin splitting. The present work considers variations such as anisotropic lattices, Landau link tadpole improvement,...

متن کامل

Quenched charmonium spectrum on anisotropic lattices

We present the results of quenched charmonium spectrum for Sand P-states, obtained by a relativistic heavy quark method on anisotropic lattices. Simulations are carried out using the standard plaquette gauge action and a meanfield-improved clover quark action at a−1 t = 3–6 GeV with the renormalized anisotropy fixed to ξ ≡ as/at = 3. We study the scaling of our fine and hyperfine mass splitting...

متن کامل

Charmed spectroscopy from a nonperturbatively determined relativistic heavy quark action in full QCD

We present a preliminary calculation of the charmed meson spectrum using the 2+1 flavor domain wall fermion lattice configurations currently being generated by the RBC and UKQCD collaborations. The calculation is performed using the 3-parameter, relativistic heavy quark action with nonperturbatively determined coefficients. We will also demonstrate a step-scaling procedure for determining these...

متن کامل

Heavy-light meson spectrum with and without NRQCD

If the charm quark is sufficiently heavy, then lattice NRQCD is an efficient computational method for obtaining the spectrum of mesons with a single charm quark. Recent studies of the S and P-wave meson spectrum have determined the contributions from first, second and third order in the inverse charm mass expansion.[1,2] Second and third order contributions were found to be statistically insign...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005