Search for Beautiful Tetraquarks in the ϒ(1S)Μ[superscript +]μ[superscript −] Invariant-Mass Spectrum
Name
13130_2018_Article_9184.pdf
Size
778.67 KB
Format
Adobe PDF
Checksum (MD5)
cf1536fe1dcea7bf83474459ace27043
Author(s)
Aaij, R.
Adeva, B.
Adinolfi, M.
Aidala, C. A
Ajaltouni, Z.
Akar, S.
Albicocco, P.
Albrecht, J.
Alessio, F.
Alexander, M.
Date Issued
October 2018
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
The LHCb collaboration, et al. “Search for Beautiful Tetraquarks in the ϒ(1S)Μ[superscript +]μ[superscript −] Invariant-Mass Spectrum.” Journal of High Energy Physics, vol. 2018, no. 10, Oct. 2018. © 2018 The Authors
Version
Final published version
Abstract
\The ϒ(1S)μ[supescript +]μ[superscript −] invariant-mass distribution is investigated for a possible exotic meson state composed of two [bar over b] quarks X[subscript b[bar over b]b[bar over b]]. The analysis is based on a data sample of pp collisions recorded with the LHCb detector at centre-of-mass energies √s = 7, 8 and 13 TeV, corresponding to an integrated luminosity of 6.3 fb[superscript −1]. No significant excess is found, and upper limits are set on the product of the production cross-section and the branching fraction as functions of the mass of the X[subscript b[bar over b]b[bar over b]] state. The limits are set in the fiducial volume where all muons have pseudorapidity in the range [2.0, 5.0], and the X[subscript b[bar over b]b[bar over b]] state has rapidity in the range [2.0, 4.5] and transverse momentum less than 15 GeV/c.
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
https://doi.org/10.1007/JHEP10(2018)086
