Observation of a New Ξ−b Resonance
| Parent link: | Physical Review Letters: Scientific Journal.— , 1958- Vol. 121, iss. 7.— 2018.— [072002 , 12 p.] |
|---|---|
| Συλλογικό Έργο: | Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники Отделение автоматизации и робототехники (ОАР), Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов |
| Άλλοι συγγραφείς: | Aaij R. Roel, Panshin G. L. Gennady Leonidovich, Strokov S. A. Sergey Aleksandrovich, Vagner A. R. Aleksandr Rudolfovich |
| Περίληψη: | Title screen From samples of pp collision data collected by the LHCb experiment at √s=7, 8 and 13 TeV, corresponding to integrated luminosities of 1.0, 2.0 and 1.5 fb−1, respectively, a peak in both the Λ0bK− and Ξ0bπ− invariant mass spectra is observed. In the quark model, radially and orbitally excited Ξ−b resonances with quark content bds are expected. Referring to this peak as Ξb(6227)−, the mass and natural width are measured to be mΞb(6227)−=6226.9±2.0±0.3±0.2 MeV/c2 and ΓΞb(6227)−=18.1±5.4±1.8 MeV/c2, where the first uncertainty is statistical, the second is systematic, and the third, on mΞb(6227)−, is due to the knowledge of the Λ0b baryon mass. Relative production rates of the Ξb(6227)−→Λ0bK− and Ξb(6227)−→Ξ0bπ− decays are also reported. |
| Γλώσσα: | Αγγλικά |
| Έκδοση: |
2018
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| Θέματα: | |
| Διαθέσιμο Online: | http://earchive.tpu.ru/handle/11683/57796 https://doi.org/10.1103/PhysRevLett.121.072002 |
| Μορφή: | Ηλεκτρονική πηγή Κεφάλαιο βιβλίου |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658780 |
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-
Observation of a new Ξ0b state; Physical Review D; Vol. 103, iss. 1
Έκδοση: (2021) -
Observation of a New Excited Beauty Strange Baryon Decaying to Ξ−bπ+π−; Physical Review Letters; Vol. 126, iss. 25
Έκδοση: (2021) -
First Observation of the Doubly Charmed Baryon Decay Ξ++cc→Ξ+cπ+; Physical Review Letters; Vol. 121, iss. 16
Έκδοση: (2018) -
Observation of New Resonances in the Λ0bπ+π− System; Physical Review Letters; Vol. 123, iss. 15
Έκδοση: (2019) -
Observation of the Doubly Charmed Baryon Ξ++cc; Physical Review Letters; Vol. 119, iss. 4
Έκδοση: (2017)