Search for Hidden-Sector Bosons in B[superscript 0] → K[superscript *0]μ[superscript +]μ[superscript −] Decays
Name
PhysRevLett.115.161802.pdf
Size
405.23 KB
Format
Adobe PDF
Checksum (MD5)
5550292d0008adb4dd4508b97f3df1d5
Author(s)
Aaij, R.
Adeva, B.
Adinolfi, M.
Affolder, A.
Ajaltouni, Z.
Akar, S.
Albrecht, J.
Alessio, F.
Alexander, M.
Ali, S.
Date Issued
October 2015
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Search for Hidden-Sector Bosons in B[superscript 0] → K[superscript *0]μ[superscript +]μ[superscript −] Decays.” Physical Review Letters 115, no. 16 (October 16, 2015). © 2015 CERN, for the LHCb Collaboration
Version
Final published version
Abstract
A search is presented for hidden-sector bosons, χ, produced in the decay B[superscript 0] → K[superscript *](892)[superscript 0]χ, with K[superscript *](892)[superscript 0] → K[superscript +]π[superscript -] and χ → μ[superscript +]μ[superscript -]. The search is performed using pp-collision data corresponding to 3.0 fb[superscript -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(B[superscript 0] → K[superscript *](892)[superscript 0]χ) × B(χ → μ[superscript +]μ[superscript -]) as a function of the mass and lifetime of the χ boson. These limits are of the order of 10[superscript -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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.115.161802
