Angular analysis of charged and neutral $B \to K \mu^+\mu^-$ decays

LHCb Collaboration; Bernet, R; Müller, K; Steinkamp, O; Straumann, U; Vollhardt, A; et al (2014). Angular analysis of charged and neutral $B \to K \mu^+\mu^-$ decays. Journal of High Energy Physics, 2014(82):online.

Abstract

The angular distributions of the rare decays $B^+ \to K^+\mu^+\mu^-$ and $B^0\to K^0_{\rm\scriptscriptstyle S}\mu^+\mu^-$ are studied with data
corresponding to 3$~$fb$^{-1}$ of integrated luminosity, collected in proton-proton collisions at 7 and 8$~$TeV centre-of-mass energies with the LHCb detector. The angular distribution is described by two parameters, $F_{\rm H}$ and the forward-backward asymmetry of the dimuon system $A_{\rm FB}$, which are determined in bins of the dimuon mass squared. The parameter $F_{\rm H}$ is a measure of the contribution from (pseudo)scalar and tensor amplitudes to the decay width. The measurements of $A_{\rm FB}$ and $F_{\rm H}$ reported here are the most precise to date and are compatible with predictions from the Standard Model.

The angular distributions of the rare decays $B^+ \to K^+\mu^+\mu^-$ and $B^0\to K^0_{\rm\scriptscriptstyle S}\mu^+\mu^-$ are studied with data
corresponding to 3$~$fb$^{-1}$ of integrated luminosity, collected in proton-proton collisions at 7 and 8$~$TeV centre-of-mass energies with the LHCb detector. The angular distribution is described by two parameters, $F_{\rm H}$ and the forward-backward asymmetry of the dimuon system $A_{\rm FB}$, which are determined in bins of the dimuon mass squared. The parameter $F_{\rm H}$ is a measure of the contribution from (pseudo)scalar and tensor amplitudes to the decay width. The measurements of $A_{\rm FB}$ and $F_{\rm H}$ reported here are the most precise to date and are compatible with predictions from the Standard Model.

Citations

5 citations in Web of Science®
5 citations in Scopus®
Google Scholar™

Downloads

50 downloads since deposited on 24 Feb 2015
47 downloads since 12 months
Detailed statistics

Additional indexing

Item Type: Journal Article, refereed, original work 07 Faculty of Science > Physics Institute 530 Physics English 2014 24 Feb 2015 11:47 05 Apr 2016 19:03 Springer 1029-8479 https://doi.org/10.1007/JHEP05(2014)082
Permanent URL: https://doi.org/10.5167/uzh-108308

Download

 Preview
Filetype: PDF
Size: 1MB
View at publisher
 Preview
Content: Published Version
Filetype: PDF
Size: 753kB

TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.