CMS reports the first complete set of optimized angular observables in B0 to K*0 mu+ mu- from 13 TeV proton collisions, with tensions in P2 and P5' relative to some SM predictions.
Angular Distributions in the Decays B -> K* l+l-
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We use a sample of 384 million BBbar events collected with the Babar detector at the PEP-II e+e- collider to study angular distributions in the rare decays B -> K* l+l-, where l+l- is either e+e- or mu+mu-. For low dilepton invariant masses, m(l+l-)<2.5 GeV/c^2, we measure a lepton forward-backward asymmetry AFB=0.24 (+0.18,-0.23) +/- 0.05 and K* longitudinal polarization FL=0.35 +/- 0.16 +/- 0.04$. For m(l+l-)>3.2$ GeV/c^2, we measure AFB=0.76 (+0.52,-0.32) +/- 0.07 FL=0.71 (+0.20,-0.22) +/- 0.04.
fields
hep-ex 1years
2024 1verdicts
ACCEPT 1representative citing papers
citing papers explorer
-
Angular analysis of the B$^0$ $\to$ K$^*$(892)$^0\mu^+\mu^-$ decay in proton-proton collisions at $\sqrt{s}$ = 13 TeV
CMS reports the first complete set of optimized angular observables in B0 to K*0 mu+ mu- from 13 TeV proton collisions, with tensions in P2 and P5' relative to some SM predictions.