Contribution to a conference proceedings/Journal Article

FZJ-2014-05421

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Spectral functions of charmonium with 2+1 flavours of dynamical quarks

Borsanyi, S. ; Dürr, S.FZJ* ; Fodor, Z. ; Hoelbling, C. ; Katz, S. D. ; Krieg, S.FZJ* ; Mages, S. ; Nógrádi, D. ; Pásztor, A. (Corresponding Author) ; Schäfer, A. ; Szabo, K.FZJ* ; Tóth, B. C. ; Trombitás, N.

2014
SISSA Trieste

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Please use a persistent id in citations: http://hdl.handle.net/2128/8045

Abstract: Finite temperature charmonium spectral functions in the pseudoscalar(PS) and vector(V) channels are studied in lattice QCD with 2+1 flavours of dynamical Wilson quarks, on fine isotropic lattices (with a lattice spacing of 0.057fm), with a non-physical pion mass of 545MeV. The highest temperature studied is approximately 1.4Tc. Up to this temperature no significant variation of the spectral function is seen in the PS channel. The V channel shows some temperature dependence, which seems to be consistent with a temperature dependent low frequency peak related to heavy quark transport, plus a temperature independent term at omega > 0. These results are in accord with previous calculations using the quenched approximation.

Note: arXiv:1401.5940

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 411 - Computational Science and Mathematical Methods (POF2-411) (POF2-411)

Appears in the scientific report 2014

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