Excited and exotic charmonium spectroscopy from lattice QCD

Liuming Liu; Graham Moir; Michael Peardon; Sinéad M. Ryan; Christopher E. Thomas; Pol Vilaseca; Jozef J. Dudek; Robert G. Edwards; Bálint Joó; David G. Richards

doi:10.22323/1.164.0138

Excited and exotic charmonium spectroscopy from lattice QCD

Liuming Liu, Graham Moir, Michael Peardon, Sinéad M. Ryan, Christopher E. Thomas, Pol Vilaseca, Jozef J. Dudek, Robert G. Edwards, Bálint Joó, David G. Richards

Research output: Contribution to journal › Conference article › peer-review

Abstract

We study the charmonium spectrum in full QCD on anisotropic lattices generated by Hadron Spectrum Collaboration. We adopt a large basis of interpolating operators to extract the excited charmonium states using the variational method. A detailed spectrum of excited charmonium mesons in many JPC channels is obtained. Some exotic hybrid states ( with JPC = 0+ , 1+ , 2+) are also studied.

Original language	English
Article number	120
Journal	Proceedings of Science
Volume	Part F130497
DOIs	https://doi.org/10.22323/1.164.0138
State	Published - 2012
Externally published	Yes
Event	30th International Symposium on Lattice Field Theory, Lattice 2012 - Cairns, Australia Duration: Jun 24 2012 → Jun 29 2012

Funding

We thank our colleagues within the Hadron Spectrum Collaboration. Chroma [20] and QUDA [21, 22] were used to perform this work on the Lonsdale cluster maintained by the Trinity Centre for High Performance Computing funded through grants from Science Foundation Ireland (SFI), at the SFI/HEA Irish Centre for High-End Computing (ICHEC), and at Jefferson Laboratory under the USQCD Initiative and the LQCD ARRA project. Gauge configurations were generated using resources awarded from the U.S. Department of Energy INCITE program at the Oak Ridge Leadership Computing Facility at Oak Ridge National Laboratory, the NSF Teragrid at the Texas Advanced Computer Center and the Pittsburgh Supercomputer Center, as well as at Jefferson Lab. This research was supported by the European Union under Grant Agreement number 238353 (ITN STRONGnet) and by the Science Foundation Ireland under Grant Nos. RFP-PHY-3201 and RFP-PHY-3218. CET acknowledges support from a Marie Curie International Incoming Fellowship, PIIF-GA-2010-273320, within the 7th European Community Framework Programme. JJD, RGE, BJ and DGR acknowledge support from U.S. Department of Energy contract DE-AC05-06OR23177, under which Jefferson Science Associates, LLC, manages and operates Jefferson Lab- oratory. JJD also acknowledges the support of the Jeffress Memorial Fund and the U.S. Department of Energy Early Career award contract DE-SC0006765.

Funders	Funder number
7th European Community Framework Programme	DE-AC05-06OR23177
ICHEC
Jeffress Memorial Fund
Marie Curie International Incoming Fellowship	PIIF-GA-2010-273320
SFI/HEA Irish Centre for High-End Computing
Texas Advanced Computer Center
National Science Foundation
U.S. Department of Energy	DE-SC0006765
Oak Ridge National Laboratory
European Commission	238353
Science Foundation Ireland

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title = "Excited and exotic charmonium spectroscopy from lattice QCD",

abstract = "We study the charmonium spectrum in full QCD on anisotropic lattices generated by Hadron Spectrum Collaboration. We adopt a large basis of interpolating operators to extract the excited charmonium states using the variational method. A detailed spectrum of excited charmonium mesons in many JPC channels is obtained. Some exotic hybrid states ( with JPC = 0+ , 1+ , 2+) are also studied.",

author = "Liuming Liu and Graham Moir and Michael Peardon and Ryan, {Sin{\'e}ad M.} and Thomas, {Christopher E.} and Pol Vilaseca and Dudek, {Jozef J.} and Edwards, {Robert G.} and B{\'a}lint Jo{\'o} and Richards, {David G.}",

year = "2012",

doi = "10.22323/1.164.0138",

language = "English",

volume = "Part F130497",

journal = "Proceedings of Science",

issn = "1824-8039",

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note = "30th International Symposium on Lattice Field Theory, Lattice 2012 ; Conference date: 24-06-2012 Through 29-06-2012",

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AU - Liu, Liuming

AU - Moir, Graham

AU - Peardon, Michael

AU - Ryan, Sinéad M.

AU - Thomas, Christopher E.

AU - Vilaseca, Pol

AU - Dudek, Jozef J.

AU - Edwards, Robert G.

AU - Joó, Bálint

AU - Richards, David G.

PY - 2012

Y1 - 2012

N2 - We study the charmonium spectrum in full QCD on anisotropic lattices generated by Hadron Spectrum Collaboration. We adopt a large basis of interpolating operators to extract the excited charmonium states using the variational method. A detailed spectrum of excited charmonium mesons in many JPC channels is obtained. Some exotic hybrid states ( with JPC = 0+ , 1+ , 2+) are also studied.

AB - We study the charmonium spectrum in full QCD on anisotropic lattices generated by Hadron Spectrum Collaboration. We adopt a large basis of interpolating operators to extract the excited charmonium states using the variational method. A detailed spectrum of excited charmonium mesons in many JPC channels is obtained. Some exotic hybrid states ( with JPC = 0+ , 1+ , 2+) are also studied.

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DO - 10.22323/1.164.0138

M3 - Conference article

AN - SCOPUS:85030100116

SN - 1824-8039

VL - Part F130497

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 120

T2 - 30th International Symposium on Lattice Field Theory, Lattice 2012

Y2 - 24 June 2012 through 29 June 2012

ER -

Excited and exotic charmonium spectroscopy from lattice QCD

Abstract

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