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Results and prospects for Charm Physics for LHCb

Precision measurements in charm physics offer a window into a unique sector of potential New Physics interactions. LHCb is well equipped to take advantage of the enormous production cross-section of charm mesons in $pp$ collisions at $\sqrt{s}=7$ TeV. The measurement of the $D^0 -\bar{D}^0$ mixing p...

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Autor principal: Borghi, S
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:http://cds.cern.ch/record/1390439
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author Borghi, S
author_facet Borghi, S
author_sort Borghi, S
collection CERN
description Precision measurements in charm physics offer a window into a unique sector of potential New Physics interactions. LHCb is well equipped to take advantage of the enormous production cross-section of charm mesons in $pp$ collisions at $\sqrt{s}=7$ TeV. The measurement of the $D^0 -\bar{D}^0$ mixing parameters and the search for CP-violation in the charm sector are key physics goals of the LHCb programme. The first CP violation measurements in the charm sector, with 37 pb$^{-1}$ of data collected in 2010, are discussed. The study of $D^+ \rightarrow K^- K^+ \pi^+$ decays shows no indication of CP violation. The measurement of the proper time asymmetry in the time dependent analysis of $D^0\rightarrow K^-K^+$ and $\bar{D}^0\rightarrow K^-K^+$ is evaluated to be $A_{\Gamma}=(-5.9 \pm 5.9_{stat} \pm 2.1_{syst})$. The difference of CP asymmetry in the time integrated rates of $D^0\rightarrow K^-K^+$ and $D^0\rightarrow \pi^- \pi^+$ decays is measured to be $(-0.28 \pm 0.70_{stat} \pm 0.25_{syst})%$.
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spelling cern-13904392019-09-30T06:29:59Zhttp://cds.cern.ch/record/1390439engBorghi, SResults and prospects for Charm Physics for LHCbParticle Physics - ExperimentPrecision measurements in charm physics offer a window into a unique sector of potential New Physics interactions. LHCb is well equipped to take advantage of the enormous production cross-section of charm mesons in $pp$ collisions at $\sqrt{s}=7$ TeV. The measurement of the $D^0 -\bar{D}^0$ mixing parameters and the search for CP-violation in the charm sector are key physics goals of the LHCb programme. The first CP violation measurements in the charm sector, with 37 pb$^{-1}$ of data collected in 2010, are discussed. The study of $D^+ \rightarrow K^- K^+ \pi^+$ decays shows no indication of CP violation. The measurement of the proper time asymmetry in the time dependent analysis of $D^0\rightarrow K^-K^+$ and $\bar{D}^0\rightarrow K^-K^+$ is evaluated to be $A_{\Gamma}=(-5.9 \pm 5.9_{stat} \pm 2.1_{syst})$. The difference of CP asymmetry in the time integrated rates of $D^0\rightarrow K^-K^+$ and $D^0\rightarrow \pi^- \pi^+$ decays is measured to be $(-0.28 \pm 0.70_{stat} \pm 0.25_{syst})%$.LHCb-PROC-2011-061CERN-LHCb-PROC-2011-061arXiv:1110.1885v2[hep-ex]oai:cds.cern.ch:13904392011-10-14
spellingShingle Particle Physics - Experiment
Borghi, S
Results and prospects for Charm Physics for LHCb
title Results and prospects for Charm Physics for LHCb
title_full Results and prospects for Charm Physics for LHCb
title_fullStr Results and prospects for Charm Physics for LHCb
title_full_unstemmed Results and prospects for Charm Physics for LHCb
title_short Results and prospects for Charm Physics for LHCb
title_sort results and prospects for charm physics for lhcb
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1390439
work_keys_str_mv AT borghis resultsandprospectsforcharmphysicsforlhcb