We report on a search for Lambda(b)(0)-> p pi(-) and Lambda(b)(0)-> pK(-) (and charge conjugate) decays in p (p) over bar collisions at root s=1.96 TeV using 193 pb(-1) of data collected by the CDF II experiment at the Fermilab Tevatron Collider. Data were collected using a track trigger that has been optimized to select tracks belonging to a secondary vertex that is typical of two-body charmless decays of b-flavored hadrons, including Lambda(b)(0) baryons. As no Lambda(b)(0) signal was observed, we set the upper limits on the branching fraction B(Lambda(b)(0)-> ph(-)), where h is K or pi, of 2.3x10(-5) at 90% C.L. and 2.9x10(-5) at 95% C.L.

D., A., J., A., T., A., T., A., M. G., A., D., A., et al. (2005). Search for Lambda(0)(b)-> p pi and Lambda(0)(b)-> pK decays in p(p)over-bar collisions at root s=1.96 TeV. PHYSICAL REVIEW. D. PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 72(5) [10.1103/PhysRevD.72.051104].

Search for Lambda(0)(b)-> p pi and Lambda(0)(b)-> pK decays in p(p)over-bar collisions at root s=1.96 TeV

PAOLETTI, RICCARDO;
2005-01-01

Abstract

We report on a search for Lambda(b)(0)-> p pi(-) and Lambda(b)(0)-> pK(-) (and charge conjugate) decays in p (p) over bar collisions at root s=1.96 TeV using 193 pb(-1) of data collected by the CDF II experiment at the Fermilab Tevatron Collider. Data were collected using a track trigger that has been optimized to select tracks belonging to a secondary vertex that is typical of two-body charmless decays of b-flavored hadrons, including Lambda(b)(0) baryons. As no Lambda(b)(0) signal was observed, we set the upper limits on the branching fraction B(Lambda(b)(0)-> ph(-)), where h is K or pi, of 2.3x10(-5) at 90% C.L. and 2.9x10(-5) at 95% C.L.
2005
D., A., J., A., T., A., T., A., M. G., A., D., A., et al. (2005). Search for Lambda(0)(b)-> p pi and Lambda(0)(b)-> pK decays in p(p)over-bar collisions at root s=1.96 TeV. PHYSICAL REVIEW. D. PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 72(5) [10.1103/PhysRevD.72.051104].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/39119
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