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Results on $B_{s,d}\to\mu\mu$ decays and measurement of $P'_5$ and $P_1$ parameters in $B_0\to K^* \mu \mu$ decay
Phenomena beyond the standard model (SM) can manifest themself indirectly, by affecting the production and decay of SM particles.The features of $B_{d,s}\to\mu\mu$ decays are sensitive probes of physics beyond the Standard Model. This talk will review the results on these decays from the data collec...
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Lenguaje: | eng |
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2017
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Acceso en línea: | https://dx.doi.org/10.22323/1.314.0224 http://cds.cern.ch/record/2287643 |
Sumario: | Phenomena beyond the standard model (SM) can manifest themself indirectly, by affecting the production and decay of SM particles.The features of $B_{d,s}\to\mu\mu$ decays are sensitive probes of physics beyond the Standard Model. This talk will review the results on these decays from the data collected by the CMS experiment. The decay $B_0\to{K^*\mu\mu}$ is a flavor-changing neutral current (FCNC)process particularly sensitive to new physics, since it is heavily suppressed in the SM. Recent results from LHCb collaboration show a tension with respect SM prediction of more than 3 sigmas, and the Belle Collaboration reported a discrepancy almost as large.We will present results of an angular analysis done by the CMS experiment at the LHC, using p-p data collected at $\sqrt{s}=8~TeV$, corresponding to an integrated luminosity of $L=20 fb^{-1}$. The analysis is focused to measure the angular parameter $P_5'$, as well as $P_1$, as a function of the di-muons invariant mass. |
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