Lattice NRQCD study of in-medium bottomonium states using N_f = 2+1, 48³ × 12 HotQCD configurations

2013/10/24 by Seyong Kim, Kim, Seyong, Péter Petreczky +4
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High-Energy Particle Collisions Research #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #hep-lat

paper · pdf · doi:10.48550/arxiv.1310.6461

7 pages, 12 figures, contribution to The 31th International Symposium on Lattice Field Theory - Lattice 2013, July 29-August 3, 2013

arxiv created 2013/10/24 · openalex publication_date 2013/10/24 · arxiv updated 2013/10/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The behavior of bottomonium state correlators at non-zero temperature, 140.4 (β= 6.664) ≤ T ≤ 221 (β= 7.280) (MeV), where the transition temperature is 154(9) (MeV), is studied, using lattice NRQCD on 48³ × 12 HotQCD HiSQ action configurations with light dynamical N_f = 2 + 1 (m_u,s/m_s = 0.05) staggered quarks. In order to understand finite temperature effects on quarkonium states, zero temperature behavior of bottomonium correlators is compared based on 32⁴ (β= 6.664, 6.800 and 6.950) and 48³ × 64 (β= 7.280) lattices. We find that temperature effects on S-wave bottomonium states are small but P-wave bottomonium states show a noticeable temperature dependence above the transition temperature.

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