Comment on Charmonium Bound State Calculations Using Potentials

نویسندگان

  • T. Goldman
  • S. Yankielowicz
چکیده

We show that using the Dirac equation to calculate quark bound c states can give.rise to significantly different eigenspectra than those obtained by using the same potential in the Schrcedinger equation, even when < v2/c2 > is small. The origin of this effect is identified and discussed.

برای دانلود رایگان 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

News from Lattice QCD on Heavy Quark Potentials and Spectral Functions of Heavy Quark States

We discuss recent lattice results on in-medium properties of hadrons and focus on thermal properties of heavy quark bound states. We will clarify the relation between heavy quark free energies and potentials used to analyze the melting of heavy quark bound states. Furthermore, we present calculations of meson spectral functions which indicate that the charmonium ground states, J/ψ and ηc, persi...

متن کامل

Selection rules for hadronic transitions of XYZ mesons.

Many of the XYZ mesons discovered in the last decade can be identified as bound states of a heavy quark and antiquark in Born-Oppenheimer (BO) potentials defined by the energy of gluon and light-quark fields in the presence of static color sources. The mesons include quarkonium hybrids, which are bound states in excited flavor-singlet BO potentials, and quarkonium tetraquarks, which are bound s...

متن کامل

بررسی سیستم جفت شده K ̅K ̅N-πK ̅Σ با استفاده از روش فدیف

Base on the non-relativistic Faddeev AGS method, three-body calculations of the coupled and quasi-bound KKN-πKΣ system are performed in the momentum space. Different phenomenological models of KN-πΣ potentials with one and two-pole structures of KN-πΣ resonance are used to study the dependence of double-kaonic system binding energy on the coupled KN-πΣ interaction. Also, the effect of the KK  r...

متن کامل

Search for the Charmonium Dissociation Temperature with Variational Analysis in Lattice QCD

Charmonium dissociation temperatures are studied in a quenched anisotropic lattice QCD with standard plaquette gauge action and O(a) improved Wilson fermion action. Simulations are carried out at temperatures in the range 0.88 Tc to 2.3 Tc. From the meson correlators, we first subtract the contribution of constant mode, which was reported to mislead the analysis of, in particular, P wave signal...

متن کامل

Comment on the narrow charmonium state of Belle at 3871.8 MeV as a deuson

It is pointed out that the narrow charmonium state at 3871.8 MeV reported by the Belle collaboration is very likely a DD̄∗ deuteronlike mesonmeson state called a deuson. It was predicted near the DD̄∗ threshold over 10 years ago. Its spin-parity would be 0 or 1 and an important decay mode should be via DD̄ to DD̄π. Its width to that channel should then be of the order 50 keV. No doubt the deuteron ...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1975