Prospects of CMS in B Physics in Phase 2

  • Rajarshi BhattacharyaEmail author
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 234)


The Standard Model (SM) of Particle Physics precisely predicts the cross-sections for the extremely rare Flavour Changing Neutral Current (FCNC) processes \(B_{d/s}\rightarrow \mu \mu \). Although, these processes are suppressed in the SM, beyond Standard Model (BSM) contributions can significantly enhance their decay rates. Therefore, a precise measurement of branching fractions and the \(B_s\rightarrow \mu \mu \) lifetime is of prime concern for experiments like CMS in the quest for new physics. The SM also precisely predicts the CP violating phase \(\phi _s\) in the \(B_s\rightarrow \phi \phi \rightarrow \)4 kaons decay process. Any significant deviation from the SM prediction for this rare FCNC process would provide a clear signature for BSM. During the High Luminosity (HL) period of the LHC, also known as LHC Phase-2, CMS will continue to look for \(B_{d/s}\rightarrow \mu \mu \) and will also study \(B_s\rightarrow \phi \phi \rightarrow \) 4 kaons. The latter will be possible for the first time in CMS due to inclusion of the tracking information in the Level-1 trigger. In this article, we shall discuss the CMS Phase-2 Tracker, Level 1 Tracking and present results obtained from Phase-2 simulations for \(B_{d/s}\rightarrow \mu \mu \) and \(B_s\rightarrow \phi \phi \rightarrow \) 4 kaons.


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Saha Institute of Nuclear PhysicsHBNIKolkataIndia

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