Mostra el registre complet de l'element
BABAR Collaboration; Martínez Vidal, Fernando; Oyanguren Campos, Arantza; Villanueva Pérez, Pablo | |||
Aquest document és un/a article, creat/da en: 2013 | |||
Este documento está disponible también en : 10.1103/PhysRevD.88.031701 |
|||
|
|||
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). | |||
Veure al catàleg Trobes | |||