Search for beautiful tetraquarks in the ϒ(1S)μ+μ−invariant-mass spectrum; Journal of High Energy Physics; № 10
| Parent link: | Journal of High Energy Physics № 10.— 2018.— [86, 22 p.] |
|---|---|
| Korporace: | Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники |
| Další autoři: | Aaij R. Roel, Adeva B. Bernardo, Adinolfi M. Marco, Panshin G. L. Gennady Leonidovich, Strokov S. A. Sergey Aleksandrovich, Vagner A. R. Aleksandr Rudolfovich |
| Shrnutí: | Title screen The (1S)μ+μ− invariant-mass distribution is investigated for a possible exotic meson state composed of two b quarks and two b¯¯b¯ quarks, Xbb¯bb¯Xbb¯bb¯. The analysis is based on a data sample of ppcollisions recorded with the LHCb detector at centre-of-mass energies s√=7s=7, 8 and 13 TeV, corresponding to an integrated luminosity of 6.3 fb−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 Xbb¯bb¯Xbb¯bb¯ state. The limits are set in the fiducial volume where all muons have pseudorapidity in the range [2.0, 5.0], and the Xbb¯bb¯Xbb¯bb¯ state has rapidity in the range [2.0, 4.5] and transverse momentum less than 15 GeV/c. |
| Jazyk: | angličtina |
| Vydáno: |
2018
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| Témata: | |
| On-line přístup: | http://earchive.tpu.ru/handle/11683/57780 https://doi.org/10.1007/JHEP10(2018)086 |
| Médium: | Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658801 |
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