Measurement of time-dependent $CP$-violating asymmetries in $B^0\to\pi^+\pi^-$ and $B_s^0\to K^+K^-$ decays at LHCb

Using a data sample of p p collisions corresponding to an integrated luminosity of 3 fb − 1 , collected with the LHCb detector at a centre-of-mass energies of 7 and 8 TeV, the CP -violating asymmetries in the decay and in the interference between mixing and decay in the B 0 → π + π − and B 0 s → K +...

Descripción completa

Detalles Bibliográficos
Autor principal: Perazzini, Stefano
Lenguaje:eng
Publicado: SISSA 2017
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.22323/1.291.0098
http://cds.cern.ch/record/2285342
_version_ 1780955922968870912
author Perazzini, Stefano
author_facet Perazzini, Stefano
author_sort Perazzini, Stefano
collection CERN
description Using a data sample of p p collisions corresponding to an integrated luminosity of 3 fb − 1 , collected with the LHCb detector at a centre-of-mass energies of 7 and 8 TeV, the CP -violating asymmetries in the decay and in the interference between mixing and decay in the B 0 → π + π − and B 0 s → K + K − modes are measured. The results are C π + π − = − 0 . 24 ± 0 . 07 ± 0 . 01, S π + π − = − 0 . 68 ± 0 . 06 ± 0 . 01, C K + K − = 0 . 24 ± 0 . 06 ± 0 . 02, S K + K − = 0 . 22 ± 0 . 06 ± 0 . 02, and A ∆Γ K + K − = − 0 . 75 ± 0 . 07 ± 0 . 11, where the first uncertainties are statistical and the second systematic.
id oai-inspirehep.net-1605663
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
publisher SISSA
record_format invenio
spelling oai-inspirehep.net-16056632019-10-15T15:28:26Zdoi:10.22323/1.291.0098http://cds.cern.ch/record/2285342engPerazzini, StefanoMeasurement of time-dependent $CP$-violating asymmetries in $B^0\to\pi^+\pi^-$ and $B_s^0\to K^+K^-$ decays at LHCbParticle Physics - ExperimentUsing a data sample of p p collisions corresponding to an integrated luminosity of 3 fb − 1 , collected with the LHCb detector at a centre-of-mass energies of 7 and 8 TeV, the CP -violating asymmetries in the decay and in the interference between mixing and decay in the B 0 → π + π − and B 0 s → K + K − modes are measured. The results are C π + π − = − 0 . 24 ± 0 . 07 ± 0 . 01, S π + π − = − 0 . 68 ± 0 . 06 ± 0 . 01, C K + K − = 0 . 24 ± 0 . 06 ± 0 . 02, S K + K − = 0 . 22 ± 0 . 06 ± 0 . 02, and A ∆Γ K + K − = − 0 . 75 ± 0 . 07 ± 0 . 11, where the first uncertainties are statistical and the second systematic.SISSAoai:inspirehep.net:16056632017
spellingShingle Particle Physics - Experiment
Perazzini, Stefano
Measurement of time-dependent $CP$-violating asymmetries in $B^0\to\pi^+\pi^-$ and $B_s^0\to K^+K^-$ decays at LHCb
title Measurement of time-dependent $CP$-violating asymmetries in $B^0\to\pi^+\pi^-$ and $B_s^0\to K^+K^-$ decays at LHCb
title_full Measurement of time-dependent $CP$-violating asymmetries in $B^0\to\pi^+\pi^-$ and $B_s^0\to K^+K^-$ decays at LHCb
title_fullStr Measurement of time-dependent $CP$-violating asymmetries in $B^0\to\pi^+\pi^-$ and $B_s^0\to K^+K^-$ decays at LHCb
title_full_unstemmed Measurement of time-dependent $CP$-violating asymmetries in $B^0\to\pi^+\pi^-$ and $B_s^0\to K^+K^-$ decays at LHCb
title_short Measurement of time-dependent $CP$-violating asymmetries in $B^0\to\pi^+\pi^-$ and $B_s^0\to K^+K^-$ decays at LHCb
title_sort measurement of time-dependent $cp$-violating asymmetries in $b^0\to\pi^+\pi^-$ and $b_s^0\to k^+k^-$ decays at lhcb
topic Particle Physics - Experiment
url https://dx.doi.org/10.22323/1.291.0098
http://cds.cern.ch/record/2285342
work_keys_str_mv AT perazzinistefano measurementoftimedependentcpviolatingasymmetriesinb0topipiandbs0tokkdecaysatlhcb

Ejemplares similares