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Título: | Search for a light Higgs boson decaying to two gluons or s(s)over-bar in the radiative decays of Upsilon(1S) |
Autor: | Babar Collaboration; Lees, J. P.; Martínez-Vidal, Fernando CSIC ORCID; Oyanguren, Arantza CSIC ORCID; Villanueva-Pérez, P. | Fecha de publicación: | 6-ago-2013 | Editor: | American Physical Society | Citación: | Physical Review - Section D - Particles and Fields 88 (3): 031701 - 7 (2013) | Resumen: | We search for the decay Upsilon(1S) -> A(0), A(0) -> gg or s (s) over bar, where A(0) is the pseudoscalar light Higgs boson predicted by the next-to-minimal supersymmetric Standard Model. We use a sample of (17.6 +/- 0.3) x 10(6) Upsilon(1S) mesons produced in the BABAR experiment via e(+)e(-) -> Upsilon(2S) -> pi(+)pi(-)Upsilon(1S). We see no significant signal and set 90%-confidence-level upper limits on the product branching fraction B(Upsilon(1S) -> gamma A(0)) . B(A(0) -> gg or s (s) over bar ranging from 10(-6) to 10(-2) for A(0) masses in the range 0.5-9.0 GeV/c(2). | Versión del editor: | http://dx.doi.org/10.1103/PhysRevD.88.031701 | URI: | http://hdl.handle.net/10261/126328 | DOI: | 10.1103/PhysRevD.88.031701 | ISSN: | 1550-7998 | E-ISSN: | 1550-2368 |
Aparece en las colecciones: | (IFIC) Artículos |
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Search for a light.pdf | 268,88 kB | Adobe PDF | Visualizar/Abrir |
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