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Title

Prediction for the lightest Higgs boson mass in the CMSSM using indirect experimental constraints

AuthorsBuchmueller, O.; Cavanaugh, R.; De Roeck, A.; Heinemeyer, Sven ; Isidori, Gino; Paradisi, Paride ; Ronga, F. J.; Weber, A. M.; Weiglein, G.
KeywordsMinimal Supersymmetric Standard Model (MSSM)
Low energy supersymmetry (SUSY)
Higgs boson masses
Low-energy precision data
Issue Date11-Oct-2007
PublisherElsevier
CitationPhysics Letters B 657(1-3): 87-94 (2007)
AbstractMeasurements at low energies provide interesting indirect information about masses of particles that are (so far) too heavy to be produced directly. Motivated by recent progress in consistently and rigorously calculating electroweak precision observables and flavour related observables, we derive the preferred value for m(h) in the Constrained Minimal Supersymmetric Standard Model (CMSSM), obtained from a fit taking into account electroweak precision data, flavour physics observables and the abundance of cold dark matter. No restriction is imposed on m(h) itself: the experimental bound from direct Higgs boson search at LEP is not included in the fit. A multi-parameter chi(2) is minimized with respect to the free parameters of the CMSSM, M-0, M-1/2, A(0), tanβ. A statistical comparison with the Standard Model fit to the electroweak precision data is made. The preferred value for the lightest Higgs boson mass in the CMSSM is found to be m(h)(CMSSM) = 110(-10)(+8)(exp.) ± 3 (theo.) GeV/c(2) where the first uncertainty is experimental and the second uncertainty is theoretical. This value is compatible with the limit from direct Higgs boson search at LEP.
Description8 pages, 4 figures.-- ISI Article Identifier: 000251595600015.-- ArXiv pre-print available at: http://arxiv.org/abs/0707.3447
Printed version published on Nov 29, 2007.
Publisher version (URL)http://dx.doi.org/10.1016/j.physletb.2007.09.058
URIhttp://hdl.handle.net/10261/9104
DOI10.1016/j.physletb.2007.09.058
ISSN0370-2693
Appears in Collections:(IFIC) Artículos
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