Charmonium-nucleon interaction from lattice QCD with 2+1 flavors of dynamical quarks

Taichi Kawanai, Shoichi Sasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

We report results for charmonium-nucleon potential Vcc̄N(r) from lattice QCD, which is calculated from the equal-time Bethe-Salpeter amplitude through the effective Schrödinger equation. Detailed information of the low-energy interaction between the charmonia (ηc and J/ψ) and the nucleon is indispensable for exploring the formation of charmonium bound to nuclei. Our simulations are carried out at a lattice cutoff of 1/a≈2GeV in a spatial volume of (3fm)3 with the non-perturbatively O(a)-improved Wilson fermions for the light quarks and a relativistic heavy quark action for the charm quark. Although our main results are calculated in quenched lattice calculations, we also present preliminary full QCD results by using 2+1 flavor QCD configurations generated by the PACS-CS Collaboration. We have found that the charmonium-nucleon potential is weakly attractive at short distances and exponentially screened at large distances.

Original languageEnglish
Title of host publicationInternational Conference on the Structure of Baryons, BARYONS'10
Pages640-643
Number of pages4
Volume1388
DOIs
Publication statusPublished - 2011 Nov 24
Externally publishedYes
EventInternational Conference on the Structure of Baryons, BARYONS'10 - Osaka, Japan
Duration: 2010 Dec 72010 Dec 11

Other

OtherInternational Conference on the Structure of Baryons, BARYONS'10
CountryJapan
CityOsaka
Period10/12/710/12/11

Keywords

  • Hadron-hadron interaction
  • Lattice QCD

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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