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Mesons in large-N QCD

Gunnar Bali, Francis Bursa, Luca Castagnini, Sara Collins, Luigi Debbio, Biagio Lucini Orcid Logo, Marco Panero

Journal of High Energy Physics, Volume: 2013, Issue: 6

Swansea University Author: Biagio Lucini Orcid Logo

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DOI (Published version): 10.1007/JHEP06(2013)071

Abstract

We present the results of a systematic, first-principles study of the spectrum and decay constants of mesons for different numbers of color charges N, via lattice computations. We restrict our attention to states in the non-zero isospin sector, evaluating the masses associated with the ground-state...

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Published in: Journal of High Energy Physics
ISSN: 1029-8479
Published: 2013
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URI: https://cronfa.swan.ac.uk/Record/cronfa15285
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first_indexed 2013-07-30T01:58:33Z
last_indexed 2018-02-09T04:47:07Z
id cronfa15285
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spelling 2013-11-01T14:10:35.1792140 v2 15285 2013-07-29 Mesons in large-N QCD 7e6fcfe060e07a351090e2a8aba363cf 0000-0001-8974-8266 Biagio Lucini Biagio Lucini true false 2013-07-29 SMA We present the results of a systematic, first-principles study of the spectrum and decay constants of mesons for different numbers of color charges N, via lattice computations. We restrict our attention to states in the non-zero isospin sector, evaluating the masses associated with the ground-state and first excitation in the pseudoscalar, vector, scalar, and axial vector channels. Our results are based on a new set of simulations of four dimensional SU(N) Yang-Mills theories with the number of colors ranging from N = 2 to N =17;the spectra and the decay constants are computed in the quenched approximation (which becomes exact in the ’t Hooft limit) using Wilson fermions. After discussing the extrapolations to the chiral and large-N limits, we present a comparison of our results to some of the numerical computations and analytical predictions available in the literature — including, in particular, those from holographic computations. Journal Article Journal of High Energy Physics 2013 6 1029-8479 Lattice QCD, AdS-CFT Correspondence, 1/N Expansion 31 12 2013 2013-12-31 10.1007/JHEP06(2013)071 COLLEGE NANME Mathematics COLLEGE CODE SMA Swansea University 2013-11-01T14:10:35.1792140 2013-07-29T10:34:05.2544519 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Gunnar Bali 1 Francis Bursa 2 Luca Castagnini 3 Sara Collins 4 Luigi Debbio 5 Biagio Lucini 0000-0001-8974-8266 6 Marco Panero 7
title Mesons in large-N QCD
spellingShingle Mesons in large-N QCD
Biagio Lucini
title_short Mesons in large-N QCD
title_full Mesons in large-N QCD
title_fullStr Mesons in large-N QCD
title_full_unstemmed Mesons in large-N QCD
title_sort Mesons in large-N QCD
author_id_str_mv 7e6fcfe060e07a351090e2a8aba363cf
author_id_fullname_str_mv 7e6fcfe060e07a351090e2a8aba363cf_***_Biagio Lucini
author Biagio Lucini
author2 Gunnar Bali
Francis Bursa
Luca Castagnini
Sara Collins
Luigi Debbio
Biagio Lucini
Marco Panero
format Journal article
container_title Journal of High Energy Physics
container_volume 2013
container_issue 6
publishDate 2013
institution Swansea University
issn 1029-8479
doi_str_mv 10.1007/JHEP06(2013)071
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 0
active_str 0
description We present the results of a systematic, first-principles study of the spectrum and decay constants of mesons for different numbers of color charges N, via lattice computations. We restrict our attention to states in the non-zero isospin sector, evaluating the masses associated with the ground-state and first excitation in the pseudoscalar, vector, scalar, and axial vector channels. Our results are based on a new set of simulations of four dimensional SU(N) Yang-Mills theories with the number of colors ranging from N = 2 to N =17;the spectra and the decay constants are computed in the quenched approximation (which becomes exact in the ’t Hooft limit) using Wilson fermions. After discussing the extrapolations to the chiral and large-N limits, we present a comparison of our results to some of the numerical computations and analytical predictions available in the literature — including, in particular, those from holographic computations.
published_date 2013-12-31T03:17:24Z
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score 11.036706

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