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Bottomonium spectroscopy with mixing of eta_b states and a light CP-odd Higgs

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dc.contributor.author	Domingo, Florian
dc.contributor.author	Ellwanger, Ulrich
dc.contributor.author	Sanchis Lozano, Miguel Ángel
dc.date.accessioned	2015-05-21T12:15:30Z
dc.date.available	2015-05-21T12:15:30Z
dc.date.issued	2009
dc.identifier.citation	Domingo, Florian Ellwanger, Ulrich Sanchis Lozano, Miguel Ángel 2009 Bottomonium spectroscopy with mixing of eta_b states and a light CP-odd Higgs Physical Review Letters 103 11 111802
dc.identifier.uri	http://hdl.handle.net/10550/43930
dc.description.abstract	The mass of the eta_b(1S), measured recently by BABAR, is significantly lower than expected from QCD predictions for the Upsilon(1S) - eta_b(1S) hyperfine splitting. We suggest that the observed eta_b(1S) mass is shifted downwards due to a mixing with a CP-odd Higgs scalar A with a mass m_A in the range 9.4 - 10.5 GeV compatible with LEP, CLEO and BABAR constraints. We determine the resulting predictions for the spectrum of the eta_b(nS) - A system and the branching ratios into tau^+ tau^- as functions of m_A.
dc.language.iso	eng
dc.relation.ispartof	Physical Review Letters, 2009, vol. 103, num. 11, p. 111802
dc.subject	Física
dc.title	Bottomonium spectroscopy with mixing of eta_b states and a light CP-odd Higgs
dc.type	journal article	es_ES
dc.date.updated	2015-05-21T12:15:30Z
dc.identifier.doi	10.1103/PhysRevLett.103.111802
dc.identifier.idgrec	091246
dc.rights.accessRights	open access	es_ES