Search for the Λ 0b → Λη ′ and Λ 0b → Λη decays with the LHCb detector

Thumbnail Image

Files

2015_ jhighenergphys_lhcbcollab_search.pdf (636.5 KB)
Identifiers
URI: http://hdl.handle.net/10347/21920
ISSN: 1029-8479
DOI: 10.1007/JHEP09(2015)006

Publication date

2015

Authors

Advisors

Tutors

Editors

Journal Title

Journal ISSN

Volume Title

Publisher

Springer
Metrics
Google Scholar
lacobus
Export

Research Projects

Organizational Units

Journal Issue

Abstract

A search is performed for the as yet unobserved baryonic Λ 0b → Λη ′ and Λ 0b → Λη decays with 3 fb−1 of proton-proton collision data recorded by the LHCb experiment. The B0 → K 0sη ′ decay is used as a normalisation channel. No significant signal is observed for the Λ 0b → Λη ′ decay. An upper limit is found on the branching fraction of B(Λ0b→Λη′) < 3.1 × 10−6 at 90% confidence level. Evidence is seen for the presence of the Λ 0b → Λη decay at the level of 3σ significance, with a branching fraction B(Λ0b→Λη)=(9.3+7.3−5.3)×10−6

Description

Keywords

Hadron-Hadron Scattering| B physics| Flavor physics

Bibliographic citation

Aaij, R., Adeva, B., Adinolfi, M. et al. Search for the Λ 0b → Λη ′ and Λ 0b → Λη decays with the LHCb detector. J. High Energ. Phys. 2015, 6 (2015). https://doi.org/10.1007/JHEP09(2015)006

Relation

Has part

Has version

Is based on

Is part of

Is referenced by

Is version of

Requires

Sponsors

Rights

© CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made

Collections

Física de Partículas
Instituto Galego de Física de Altas Enerxías (IGFAE)