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

AutorBuchmueller, O.; Cavanaugh, R.; De Roeck, A.; Heinemeyer, Sven ; Isidori, Gino; Paradisi, Paride ; Ronga, F. J.; Weber, A. M.; Weiglein, G.
Palabras claveMinimal Supersymmetric Standard Model (MSSM)
Low energy supersymmetry (SUSY)
Higgs boson masses
Low-energy precision data
Fecha de publicación11-oct-2007
EditorElsevier
CitaciónPhysics Letters B 657(1-3): 87-94 (2007)
ResumenMeasurements 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.
Descripción8 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.
Versión del editorhttp://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
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