We use (111±1) million Υ(3S) and (89±1) million Υ(2S) events recorded by the BABAR detector at the PEP-II B-factory at SLAC to perform a study of radiative transitions between bottomonium states using photons that have been converted to e+e− pairs by the detector material. We observe Υ(3S)→γχb0,2(1P) decay, make precise measurements of the branching fractions for χb1,2(1P,2P)→γΥ(1S) and χb1,2(2P)→γΥ(2S) decays, and search for radiative decay to the ηb(1S) and ηb(2S) states.

Lees, J.P., Poireau, V., Prencipe, E., Tisserand, V., Tico, J.G., Grauges, E., et al. (2011). Study of radiative bottomonium transitions using converted photons. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 84(7), 1-17 [10.1103/PhysRevD.84.072002].

Study of radiative bottomonium transitions using converted photons

PATRIGNANI, CLAUDIA;
2011

Abstract

We use (111±1) million Υ(3S) and (89±1) million Υ(2S) events recorded by the BABAR detector at the PEP-II B-factory at SLAC to perform a study of radiative transitions between bottomonium states using photons that have been converted to e+e− pairs by the detector material. We observe Υ(3S)→γχb0,2(1P) decay, make precise measurements of the branching fractions for χb1,2(1P,2P)→γΥ(1S) and χb1,2(2P)→γΥ(2S) decays, and search for radiative decay to the ηb(1S) and ηb(2S) states.
2011
Lees, J.P., Poireau, V., Prencipe, E., Tisserand, V., Tico, J.G., Grauges, E., et al. (2011). Study of radiative bottomonium transitions using converted photons. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 84(7), 1-17 [10.1103/PhysRevD.84.072002].
Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Tico, J. Garra; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.; Eigen,...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/537457
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