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 language | English |
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Title of host publication | International Conference on the Structure of Baryons, BARYONS'10 |
Pages | 640-643 |
Number of pages | 4 |
Volume | 1388 |
DOIs | |
Publication status | Published - 2011 Nov 24 |
Externally published | Yes |
Event | International Conference on the Structure of Baryons, BARYONS'10 - Osaka, Japan Duration: 2010 Dec 7 → 2010 Dec 11 |
Other
Other | International Conference on the Structure of Baryons, BARYONS'10 |
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Country | Japan |
City | Osaka |
Period | 10/12/7 → 10/12/11 |
Keywords
- Hadron-hadron interaction
- Lattice QCD
ASJC Scopus subject areas
- Physics and Astronomy(all)