Bottomonium above Deconfinement in Lattice Nonrelativistic QCD

Journal Article · Fri Feb 11 00:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.061602· OSTI ID:21532289

Aarts, G ^[1]; Kim, S ^[2]; Lombardo, M P ^[3]; Oktay, M B ^[4]; Ryan, S M ^[5]; Sinclair, D K ^[6]; Skullerud, J -I ^[7]

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1. Department of Physics, Swansea University, Swansea SA2 8PP (United Kingdom)
2. Department of Physics, Sejong University, Seoul 143-747 (Korea, Republic of)
3. INFN-Laboratori Nazionali de Frascati, I-00044, Frascati (RM) Italy (Italy)
4. Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112-0830 (United States)
5. School of Mathematics, Trinity College, Dublin 2 (Ireland)
6. HEP Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
7. Department of Mathematical Physics, National University of Ireland Maynooth, Maynooth, County Kildare (Ireland)

We study the temperature dependence of bottomonium for temperatures in the range 0.4T{sub c}<T<2.1T{sub c}, using nonrelativistic dynamics for the bottom quark and full relativistic lattice QCD simulations for N{sub f}=2 light flavors on a highly anisotropic lattice. We find that the {Upsilon} is insensitive to the temperature in this range, while the {chi}{sub b} propagators show a crossover from the exponential decay characterizing the hadronic phase to a power-law behavior consistent with nearly free dynamics at T{approx_equal}2T{sub c}.

• OSTI ID: 21532289
• Journal Information: Physical Review Letters, Vol. 106, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.106.061602; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
B QUARKS
BOTTOMONIUM
FLAVOR MODEL
QUANTUM CHROMODYNAMICS
RELATIVISTIC RANGE
SIMULATION
TEMPERATURE DEPENDENCE
BEAUTY PARTICLES
BOSONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
HADRONS
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKONIUM
QUARKS