Low-energy J/ψ-hadron interactions from quenched lattice QCD

Kazuo Yokokawa; Shoichi Sasaki; Arata Hayashigaki; Tetsuo Hatsuda

Low-energy J/ψ-hadron interactions from quenched lattice QCD

Kazuo Yokokawa, Shoichi Sasaki, Arata Hayashigaki, Tetsuo Hatsuda

Research output: Contribution to journal › Conference article

Abstract

The J/ψ-hadron interaction is a key ingredient in analyzing the J/ψ suppression in hot hadronic matter as well as the propagation of J/ψ in nuclei. As a first step to clarify the J/ψ-hadron interactions at low energies, we have calculated J/ψ-π, J/ψ-rand J/ψ-nucleon scattering lengths by the quenched lattice QCD simulations with Wilson fermions for β = 6.2 on 24³ × 48 and 32³ × 48 lattices. Using the Lüscher's method to extract the scattering length from the simulations in a finite box, we find an attractive interaction in the S-wave channel for all three systems: Among others, the J/ψ-nucleon interaction is most attractive. Possibility of the J/ψ-nucleon bound state is also discussed.

Original language	English
Journal	Proceedings of Science
Volume	20
Publication status	Published - 2005 Jan 1
Externally published	Yes
Event	23rd International Symposium on Lattice Field Theory, LAT 2005 - Dublin, Ireland Duration: 2005 Jul 25 → 2005 Jul 30

ASJC Scopus subject areas

General

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title = "Low-energy J/ψ-hadron interactions from quenched lattice QCD",

abstract = "The J/ψ-hadron interaction is a key ingredient in analyzing the J/ψ suppression in hot hadronic matter as well as the propagation of J/ψ in nuclei. As a first step to clarify the J/ψ-hadron interactions at low energies, we have calculated J/ψ-π, J/ψ-rand J/ψ-nucleon scattering lengths by the quenched lattice QCD simulations with Wilson fermions for β = 6.2 on 243 × 48 and 323 × 48 lattices. Using the L{\"u}scher's method to extract the scattering length from the simulations in a finite box, we find an attractive interaction in the S-wave channel for all three systems: Among others, the J/ψ-nucleon interaction is most attractive. Possibility of the J/ψ-nucleon bound state is also discussed.",

author = "Kazuo Yokokawa and Shoichi Sasaki and Arata Hayashigaki and Tetsuo Hatsuda",

year = "2005",

month = jan,

day = "1",

language = "English",

volume = "20",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

note = "23rd International Symposium on Lattice Field Theory, LAT 2005 ; Conference date: 25-07-2005 Through 30-07-2005",

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TY - JOUR

T1 - Low-energy J/ψ-hadron interactions from quenched lattice QCD

AU - Yokokawa, Kazuo

AU - Sasaki, Shoichi

AU - Hayashigaki, Arata

AU - Hatsuda, Tetsuo

PY - 2005/1/1

Y1 - 2005/1/1

N2 - The J/ψ-hadron interaction is a key ingredient in analyzing the J/ψ suppression in hot hadronic matter as well as the propagation of J/ψ in nuclei. As a first step to clarify the J/ψ-hadron interactions at low energies, we have calculated J/ψ-π, J/ψ-rand J/ψ-nucleon scattering lengths by the quenched lattice QCD simulations with Wilson fermions for β = 6.2 on 243 × 48 and 323 × 48 lattices. Using the Lüscher's method to extract the scattering length from the simulations in a finite box, we find an attractive interaction in the S-wave channel for all three systems: Among others, the J/ψ-nucleon interaction is most attractive. Possibility of the J/ψ-nucleon bound state is also discussed.

AB - The J/ψ-hadron interaction is a key ingredient in analyzing the J/ψ suppression in hot hadronic matter as well as the propagation of J/ψ in nuclei. As a first step to clarify the J/ψ-hadron interactions at low energies, we have calculated J/ψ-π, J/ψ-rand J/ψ-nucleon scattering lengths by the quenched lattice QCD simulations with Wilson fermions for β = 6.2 on 243 × 48 and 323 × 48 lattices. Using the Lüscher's method to extract the scattering length from the simulations in a finite box, we find an attractive interaction in the S-wave channel for all three systems: Among others, the J/ψ-nucleon interaction is most attractive. Possibility of the J/ψ-nucleon bound state is also discussed.

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M3 - Conference article

AN - SCOPUS:85056895137

VL - 20

JO - Proceedings of Science

JF - Proceedings of Science

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T2 - 23rd International Symposium on Lattice Field Theory, LAT 2005

Y2 - 25 July 2005 through 30 July 2005

ER -