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

Taichi Kawanai; Shoichi Sasaki

doi:10.1063/1.3647474

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

Taichi Kawanai, Shoichi Sasaki

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

We report results for charmonium-nucleon potential V_cc̄N(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 (η_c 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
Title of host publication	International Conference on the Structure of Baryons, BARYONS'10
Pages	640-643
Number of pages	4
Volume	1388
DOIs	https://doi.org/10.1063/1.3647474
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
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)

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10.1063/1.3647474

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Cite this

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title = "Charmonium-nucleon interaction from lattice QCD with 2+1 flavors of dynamical quarks",

abstract = "We report results for charmonium-nucleon potential Vc{\=c}N(r) from lattice QCD, which is calculated from the equal-time Bethe-Salpeter amplitude through the effective Schr{\"o}dinger 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.",

keywords = "Hadron-hadron interaction, Lattice QCD",

author = "Taichi Kawanai and Shoichi Sasaki",

year = "2011",

month = nov,

day = "24",

doi = "10.1063/1.3647474",

language = "English",

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volume = "1388",

pages = "640--643",

booktitle = "International Conference on the Structure of Baryons, BARYONS'10",

note = "International Conference on the Structure of Baryons, BARYONS'10 ; Conference date: 07-12-2010 Through 11-12-2010",

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TY - GEN

T1 - Charmonium-nucleon interaction from lattice QCD with 2+1 flavors of dynamical quarks

AU - Kawanai, Taichi

AU - Sasaki, Shoichi

PY - 2011/11/24

Y1 - 2011/11/24

N2 - 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.

AB - 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.

KW - Hadron-hadron interaction

KW - Lattice QCD

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U2 - 10.1063/1.3647474

DO - 10.1063/1.3647474

M3 - Conference contribution

AN - SCOPUS:81555209769

SN - 9780735409521

VL - 1388

SP - 640

EP - 643

BT - International Conference on the Structure of Baryons, BARYONS'10

T2 - International Conference on the Structure of Baryons, BARYONS'10

Y2 - 7 December 2010 through 11 December 2010

ER -