Determination of the Θ+ parity from γn → K -K+n

Detalhes bibliográficos
Autor(a) principal: Nakayama, K.
Data de Publicação: 2004
Outros Autores: Tsushima, K. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.physletb.2003.12.070
http://hdl.handle.net/11449/67687
Resumo: It is demonstrated that measurements of photon asymmetry in the γn → K-K+n reaction, can most likely determine the parity of the newly discovered Θ+ pentaquark. We predict that if the parity of Θ+ is positive, the photon asymmetry is significantly positive; if the parity is negative, the photon asymmetry is significantly negative. If the background contribution is large, the photon asymmetry may become very small in magnitude, thereby making it difficult to distinguish between the positive and negative parity results. However, even in this case, a combined analysis of the (K+n) invariant mass distribution and photon asymmetry should allow a determination of the parity of Θ+. © 2004 Published by Elsevier B.V.
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spelling Determination of the Θ+ parity from γn → K -K+nΘ+ parity determinationγn → K-K+n reaction(K+n) invariant mass distributionPhoton asymmetryab initio calculationatomic particlemathematical analysismathematical modelmolecular weightnuclear physicsphotonIt is demonstrated that measurements of photon asymmetry in the γn → K-K+n reaction, can most likely determine the parity of the newly discovered Θ+ pentaquark. We predict that if the parity of Θ+ is positive, the photon asymmetry is significantly positive; if the parity is negative, the photon asymmetry is significantly negative. If the background contribution is large, the photon asymmetry may become very small in magnitude, thereby making it difficult to distinguish between the positive and negative parity results. However, even in this case, a combined analysis of the (K+n) invariant mass distribution and photon asymmetry should allow a determination of the parity of Θ+. © 2004 Published by Elsevier B.V.Department of Physics and Astronomy University of Georgia, Athens, GA 30602Instituto de Fisica Teorica UNESP, Rua Pamplona 145, 01405-900 Sao Paulo SPInstituto de Fisica Teorica UNESP, Rua Pamplona 145, 01405-900 Sao Paulo SPUniversity of GeorgiaUniversidade Estadual Paulista (Unesp)Nakayama, K.Tsushima, K. [UNESP]2014-05-27T11:21:03Z2014-05-27T11:21:03Z2004-03-18info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article269-277application/pdfhttp://dx.doi.org/10.1016/j.physletb.2003.12.070Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 583, n. 3-4, p. 269-277, 2004.0370-2693http://hdl.handle.net/11449/6768710.1016/j.physletb.2003.12.0702-s2.0-13423006702-s2.0-1342300670.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics4.2542,336info:eu-repo/semantics/openAccess2023-10-03T06:02:51Zoai:repositorio.unesp.br:11449/67687Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:52:10.725004Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Determination of the Θ+ parity from γn → K -K+n
title Determination of the Θ+ parity from γn → K -K+n
spellingShingle Determination of the Θ+ parity from γn → K -K+n
Nakayama, K.
Θ+ parity determination
γn → K-K+n reaction
(K+n) invariant mass distribution
Photon asymmetry
ab initio calculation
atomic particle
mathematical analysis
mathematical model
molecular weight
nuclear physics
photon
title_short Determination of the Θ+ parity from γn → K -K+n
title_full Determination of the Θ+ parity from γn → K -K+n
title_fullStr Determination of the Θ+ parity from γn → K -K+n
title_full_unstemmed Determination of the Θ+ parity from γn → K -K+n
title_sort Determination of the Θ+ parity from γn → K -K+n
author Nakayama, K.
author_facet Nakayama, K.
Tsushima, K. [UNESP]
author_role author
author2 Tsushima, K. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv University of Georgia
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Nakayama, K.
Tsushima, K. [UNESP]
dc.subject.por.fl_str_mv Θ+ parity determination
γn → K-K+n reaction
(K+n) invariant mass distribution
Photon asymmetry
ab initio calculation
atomic particle
mathematical analysis
mathematical model
molecular weight
nuclear physics
photon
topic Θ+ parity determination
γn → K-K+n reaction
(K+n) invariant mass distribution
Photon asymmetry
ab initio calculation
atomic particle
mathematical analysis
mathematical model
molecular weight
nuclear physics
photon
description It is demonstrated that measurements of photon asymmetry in the γn → K-K+n reaction, can most likely determine the parity of the newly discovered Θ+ pentaquark. We predict that if the parity of Θ+ is positive, the photon asymmetry is significantly positive; if the parity is negative, the photon asymmetry is significantly negative. If the background contribution is large, the photon asymmetry may become very small in magnitude, thereby making it difficult to distinguish between the positive and negative parity results. However, even in this case, a combined analysis of the (K+n) invariant mass distribution and photon asymmetry should allow a determination of the parity of Θ+. © 2004 Published by Elsevier B.V.
publishDate 2004
dc.date.none.fl_str_mv 2004-03-18
2014-05-27T11:21:03Z
2014-05-27T11:21:03Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.physletb.2003.12.070
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 583, n. 3-4, p. 269-277, 2004.
0370-2693
http://hdl.handle.net/11449/67687
10.1016/j.physletb.2003.12.070
2-s2.0-1342300670
2-s2.0-1342300670.pdf
url http://dx.doi.org/10.1016/j.physletb.2003.12.070
http://hdl.handle.net/11449/67687
identifier_str_mv Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 583, n. 3-4, p. 269-277, 2004.
0370-2693
10.1016/j.physletb.2003.12.070
2-s2.0-1342300670
2-s2.0-1342300670.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
4.254
2,336
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 269-277
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128285006102528

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