Spectral function and excited states in lattice QCD with the maximum entropy method

Yamazaki, Takeshi; Aoki, Sinya; Burkhalter, Rudolf; Fukugita, Masataka; Hashimoto, Shoji; Ishizuka, Naruhito; Iwasaki, Yoichi; Kanaya, Kazuyuki; Kaneko, Takashi; Kuramashi, Yoshinobu; Okawa, Masanori; Taniguchi, Yusuke; Ukawa, Akira; Yoshie, Tomoteru

doi:10.1103/PhysRevD.65.014501

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Spectral function and excited states in lattice QCD with the maximum entropy method

https://hiroshima.repo.nii.ac.jp/records/2008609

名前 / ファイル	ライセンス	アクション
PhysRevD_65_014501.pdf (240.8 KB)

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デフォルトアイテムタイプ_（フル）(1)

公開日

2023-03-18

タイトル

Spectral function and excited states in lattice QCD with the maximum entropy method

言語

作成者

Yamazaki, Takeshi
Aoki, Sinya
Burkhalter, Rudolf
Fukugita, Masataka
Hashimoto, Shoji
Ishizuka, Naruhito
Iwasaki, Yoichi
Kanaya, Kazuyuki
Kaneko, Takashi
Kuramashi, Yoshinobu
Okawa, Masanori
Taniguchi, Yusuke
Ukawa, Akira
Yoshie, Tomoteru

アクセス権

open access

アクセス権URI

http://purl.org/coar/access_right/c_abf2

権利情報

内容記述

We apply the maximum entropy method to extract the spectral functions for pseudoscalar and vector mesons from hadron correlators previously calculated at four different lattice spacings in quenched QCD with the Wilson quark action. We determine masses and decay constants for the ground and excited states of the pseudoscalar and vector channels from the position and area of peaks in the spectral functions. We obtain the results mp1=660(590) MeV and mr 1=1540(570) MeV for the first excited state masses, in the continuum limit of quenched QCD. We also find unphysical states that have an infinite mass in the continuum limit, and argue that they are bound states of two doublers of the Wilson quark action. If the interpretation is correct, this is the first time that the state of doublers has been identified in lattice QCD numerical simulations.

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出版者

American Physical Society

言語

eng

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資源タイプ識別子

http://purl.org/coar/resource_type/c_6501

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journal article

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VoR

出版タイプResource

http://purl.org/coar/version/c_970fb48d4fbd8a85

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2025-02-21 04:29:04.010084

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Spectral function and excited states in lattice QCD with the maximum entropy method

× Yamazaki, Takeshi

× Aoki, Sinya

× Burkhalter, Rudolf

× Fukugita, Masataka

× Hashimoto, Shoji

× Ishizuka, Naruhito

× Iwasaki, Yoichi

× Kanaya, Kazuyuki

× Kaneko, Takashi

× Kuramashi, Yoshinobu

× Okawa, Masanori

× Taniguchi, Yusuke

× Ukawa, Akira

× Yoshie, Tomoteru

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