Reconstruction of the decays $\Lambda_b \to \Lambda(1115) \gamma$ and $\Lambda_b \to \Lambda(1670) \gamma$ at LHCb

Polarized radiative Lambda_b decays represent an important sector to search for physics beyond the Standard Model. The LHC will present a fine opportunity for such a study, due to the large number of b hadrons that will be produced in pp collisions. We present the reconstruction of the decays Lambda...

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Detalles Bibliográficos
Autor principal: Legger, F
Lenguaje:eng
Publicado: 2006
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1005791
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author Legger, F
author_facet Legger, F
author_sort Legger, F
collection CERN
description Polarized radiative Lambda_b decays represent an important sector to search for physics beyond the Standard Model. The LHC will present a fine opportunity for such a study, due to the large number of b hadrons that will be produced in pp collisions. We present the reconstruction of the decays Lambda_b -> Lambda(1115) gamma and Lambda_b -> Lambda(1670) gamma at LHCb. We find annual signal yields of about 750 events for the first and 2500 for the second channel. We assume that the dominant background comes from bb events and estimate the background to signal ratio B/S to be respectively less than 42 and 18 at 90% confidence level.
id cern-1005791
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
record_format invenio
spelling cern-10057912019-09-30T06:29:59Zhttp://cds.cern.ch/record/1005791engLegger, FReconstruction of the decays $\Lambda_b \to \Lambda(1115) \gamma$ and $\Lambda_b \to \Lambda(1670) \gamma$ at LHCbDetectors and Experimental TechniquesPolarized radiative Lambda_b decays represent an important sector to search for physics beyond the Standard Model. The LHC will present a fine opportunity for such a study, due to the large number of b hadrons that will be produced in pp collisions. We present the reconstruction of the decays Lambda_b -> Lambda(1115) gamma and Lambda_b -> Lambda(1670) gamma at LHCb. We find annual signal yields of about 750 events for the first and 2500 for the second channel. We assume that the dominant background comes from bb events and estimate the background to signal ratio B/S to be respectively less than 42 and 18 at 90% confidence level.LHCb-2006-012CERN-LHCb-2006-012oai:cds.cern.ch:10057912006-12-18
spellingShingle Detectors and Experimental Techniques
Legger, F
Reconstruction of the decays $\Lambda_b \to \Lambda(1115) \gamma$ and $\Lambda_b \to \Lambda(1670) \gamma$ at LHCb
title Reconstruction of the decays $\Lambda_b \to \Lambda(1115) \gamma$ and $\Lambda_b \to \Lambda(1670) \gamma$ at LHCb
title_full Reconstruction of the decays $\Lambda_b \to \Lambda(1115) \gamma$ and $\Lambda_b \to \Lambda(1670) \gamma$ at LHCb
title_fullStr Reconstruction of the decays $\Lambda_b \to \Lambda(1115) \gamma$ and $\Lambda_b \to \Lambda(1670) \gamma$ at LHCb
title_full_unstemmed Reconstruction of the decays $\Lambda_b \to \Lambda(1115) \gamma$ and $\Lambda_b \to \Lambda(1670) \gamma$ at LHCb
title_short Reconstruction of the decays $\Lambda_b \to \Lambda(1115) \gamma$ and $\Lambda_b \to \Lambda(1670) \gamma$ at LHCb
title_sort reconstruction of the decays $\lambda_b \to \lambda(1115) \gamma$ and $\lambda_b \to \lambda(1670) \gamma$ at lhcb
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1005791
work_keys_str_mv AT leggerf reconstructionofthedecayslambdabtolambda1115gammaandlambdabtolambda1670gammaatlhcb

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