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Gluonic Lorentz violation and chiral perturbation theory

2017-04Journal article Restricted access
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dc.contributor.authorNoordmans, J. P.
dc.date.accessioned2019-11-20T15:07:40Z
dc.date.available2019-11-20T15:07:40Z
dc.date.issued2017-04
dc.description.abstractBy applying chiral-perturbation-theory methods to the QCD sector of the Lorentz-violating Standard-Model Extension, we investigate Lorentz violation in the strong interactions. In particular, we consider the CPT-even pure-gluon operator of the minimal Standard-Model Extension. We construct the lowest-order chiral effective Lagrangian for three as well as two light quark flavors. We develop the power-counting rules and construct the heavy-baryon chiral-perturbation-theory Lagrangian, which we use to calculate Lorentz-violating contributions to the nucleon self-energy. Using the constructed effective operators, we derive the first stringent limits on many of the components of the relevant Lorentz-violating parameter. We also obtain the Lorentz-violating nucleon-nucleon potential. We suggest that this potential may be used to obtain new limits from atomic-clock or deuteron storage-ring experiments.
dc.description.sponsorshipFundacao para a Ciencia e a Tecnologia of Portugal [UID/FIS/00099/2013, SFRH/BPD/101403/2014]
dc.description.sponsorshipPrograma Operacional Potencial Humano/Fundo Social Europeu (POPH/FSE)
dc.identifier.doi10.1103/PhysRevD.95.075030
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.urihttp://hdl.handle.net/10400.1/13155
dc.language.isoeng
dc.peerreviewedyes
dc.publisherAmerican Physical Society
dc.subjectEffective-field theory
dc.subjectEnergy cosmic-rays
dc.subjectArrival directions
dc.subjectNucleon
dc.subjectLagrangians
dc.subjectParity
dc.subjectCpt
dc.titleGluonic Lorentz violation and chiral perturbation theory
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue7
oaire.citation.startPage75030
oaire.citation.titlePhysical Review D
oaire.citation.volume95
rcaap.rightsrestrictedAccess
rcaap.typearticle

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