Search for hidden-sector bosons in $B^0 \!\to K^{*0}\mu^+\mu^-$ decays - INSPIRE

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Search for hidden-sector bosons in $B^0 \!\to K^{*0}\mu^+\mu^-$ decays

LHCb

Collaboration

Aug 17, 2015

10 pages

Published in:

Phys.Rev.Lett. 115 (2015) 16, 161802

Published: Oct 16, 2015

e-Print:

1508.04094 [hep-ex]

DOI:

10.1103/PhysRevLett.115.161802

PDG:

{{\mathit A}^{0}}

(Axion) and Other Light Boson (

{{\mathit X}^{0}}

) Searches in Hadron Decays

Report number:

CERN-PH-EP-2015-202,
LHCB-PAPER-2015-036

Experiments:

CERN-LHC-LHCb

View in:

reference search266 citations

Citations per year

Abstract: (APS)

A search is presented for hidden-sector bosons, χ, produced in the decay B0→K*(892)0χ, with K*(892)0→K+π- and χ→μ+μ-. The search is performed using pp-collision data corresponding to 3.0 fb-1 collected with the LHCb detector. No significant signal is observed in the accessible mass range 214≤m(χ)≤4350 MeV, and upper limits are placed on the branching fraction product B(B0→K*(892)0χ)×B(χ→μ+μ-) as a function of the mass and lifetime of the χ boson. These limits are of the order of 10-9 for χ lifetimes less than 100 ps over most of the m(χ) range, and place the most stringent constraints to date on many theories that predict the existence of additional low-mass bosons.

Note:

All figures and tables, along with supplementary material, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2015-036.html

13.85.Rm
12.60.-i
13.20.He
14.80.Va
p p: scattering
p p: colliding beams
B: hadroproduction
B0: rare decay
B0: semileptonic decay
muon: pair production

References(54)

Figures(13)

Angular analysis of the $B^{0} \rightarrow K^{*0} \mu^{+} \mu^{-}$ decay

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