Measurement of the CP Violating Asymmetry $a^s_{sl}$ using $B^0_{s} \to ( D^\mp_s \to \phi \pi ^\mp ) \mu^\pm \nu _\mu$

The time-integrated measurement of the semileptonic CP violating asymmetry, $a^s_{sl}$, with data acquired at the Large Hadron Collider with the LHCb experiment is presented. This measurement can help physicists understand some peculiarities in the Standard Model, which is the fundamental fr...

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Autor principal: Borgia, Aessandra
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1748354
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author Borgia, Aessandra
author_facet Borgia, Aessandra
author_sort Borgia, Aessandra
collection CERN
description The time-integrated measurement of the semileptonic CP violating asymmetry, $a^s_{sl}$, with data acquired at the Large Hadron Collider with the LHCb experiment is presented. This measurement can help physicists understand some peculiarities in the Standard Model, which is the fundamental framework of knowledge of the universe. Should this asymmetry diverge from zero, new physics may be a main motivator. Using 1 fb$^1$ of collected data in 2011 with proton-proton collisions at a center-of-mass energy of 7 TeV, the measured value of $a^s_{sl}$, presented is $(-0.06\pm 0.50\pm0.36)\%$, where the first uncertainty is statistical and the second is systematic. This is in very good agreement with the Standard Model prediction of $(0.0019\pm0.0003)\%$, however divergent from the $D0$ collaboration measurement of $(-1.12 \pm 0.74 \pm 0.17)\%$}.
id cern-1748354
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
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spelling cern-17483542019-09-30T06:29:59Zhttp://cds.cern.ch/record/1748354engBorgia, AessandraMeasurement of the CP Violating Asymmetry $a^s_{sl}$ using $B^0_{s} \to ( D^\mp_s \to \phi \pi ^\mp ) \mu^\pm \nu _\mu$Particle Physics - ExperimentThe time-integrated measurement of the semileptonic CP violating asymmetry, $a^s_{sl}$, with data acquired at the Large Hadron Collider with the LHCb experiment is presented. This measurement can help physicists understand some peculiarities in the Standard Model, which is the fundamental framework of knowledge of the universe. Should this asymmetry diverge from zero, new physics may be a main motivator. Using 1 fb$^1$ of collected data in 2011 with proton-proton collisions at a center-of-mass energy of 7 TeV, the measured value of $a^s_{sl}$, presented is $(-0.06\pm 0.50\pm0.36)\%$, where the first uncertainty is statistical and the second is systematic. This is in very good agreement with the Standard Model prediction of $(0.0019\pm0.0003)\%$, however divergent from the $D0$ collaboration measurement of $(-1.12 \pm 0.74 \pm 0.17)\%$}.CERN-THESIS-2013-328oai:cds.cern.ch:17483542014-08-07T13:40:48Z
spellingShingle Particle Physics - Experiment
Borgia, Aessandra
Measurement of the CP Violating Asymmetry $a^s_{sl}$ using $B^0_{s} \to ( D^\mp_s \to \phi \pi ^\mp ) \mu^\pm \nu _\mu$
title Measurement of the CP Violating Asymmetry $a^s_{sl}$ using $B^0_{s} \to ( D^\mp_s \to \phi \pi ^\mp ) \mu^\pm \nu _\mu$
title_full Measurement of the CP Violating Asymmetry $a^s_{sl}$ using $B^0_{s} \to ( D^\mp_s \to \phi \pi ^\mp ) \mu^\pm \nu _\mu$
title_fullStr Measurement of the CP Violating Asymmetry $a^s_{sl}$ using $B^0_{s} \to ( D^\mp_s \to \phi \pi ^\mp ) \mu^\pm \nu _\mu$
title_full_unstemmed Measurement of the CP Violating Asymmetry $a^s_{sl}$ using $B^0_{s} \to ( D^\mp_s \to \phi \pi ^\mp ) \mu^\pm \nu _\mu$
title_short Measurement of the CP Violating Asymmetry $a^s_{sl}$ using $B^0_{s} \to ( D^\mp_s \to \phi \pi ^\mp ) \mu^\pm \nu _\mu$
title_sort measurement of the cp violating asymmetry $a^s_{sl}$ using $b^0_{s} \to ( d^\mp_s \to \phi \pi ^\mp ) \mu^\pm \nu _\mu$
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1748354
work_keys_str_mv AT borgiaaessandra measurementofthecpviolatingasymmetryasslusingb0stodmpstophipimpmupmnumu

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