Heavy quarkonia at high temperature
نویسندگان
چکیده
منابع مشابه
Heavy Quarkonia at High Temperature
We present a new method to study the properties of heavy quarks at finite temperature. It combines non-relativistic QCD with an improved gluonic action on anisotropic lattices. The efficiency of the approach is demonstrated by the first non-perturbative calculation of the temperature dependence of low-lying quarkonium ”pole” masses. For ground state meson masses in the region between charmonium...
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Masses and decay constants of the scalar quarkonia, Q0ðQ 1⁄4 b; cÞ with quantum numbers IGðJPCÞ 1⁄4 0þð0þþÞ, are calculated in the framework of the QCD sum rules approach both in vacuum and finite temperature. The masses and decay constants remain unchanged up to T ’ 100 MeV but they start to diminish with increasing the temperature after this point. Near the critical or deconfinement temperatu...
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Perspectives for measurements of quarkonia and heavy flavors in heavy ion collisions at the LHC are reviewed. 1 Quarkonia and heavy flavors: what is different at the LHC With a nucleus-nucleus center-of-mass energy nearly 30 times larger than the one reached at RHIC, the LHC will open a new era for studying the properties of strongly interacting matter at extreme energy densities [1]. One of th...
متن کاملHeavy Quarkonia
Recent experimental results on heavy quarkonia spectroscopy and decays are reviewed. In particular, new results are discussed on charmonium spin singlet states, bottomonium D-states, photon and hadronic transitions from heavy quarkonium states, and the unexplained narrow X(3872) state.
متن کاملSpectra of Quarkonia at Finite Temperature
Finite-temperature spectra of heavy quarkonia are calculated by combining potential model and thermofield dynamics formalisms. The mass spectra of the heavy quarkonia with various quark contents are calculated. It is found that binding mass of the quarkonium decreases as temperature increases.a Quarkonia; finite-temperature spectra; thernofield dynamics.
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1998
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(98)00205-6