Observation of the Doubly Charmed Baryon Ξ++cc; Physical Review Letters; Vol. 119, iss. 4
| Parent link: | Physical Review Letters: Scientific Journal.— , 1958- Vol. 119, iss. 4.— 2017.— [112001, 10 p.] |
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| Ente Autore: | |
| Altri autori: | , , , , , |
| Riassunto: | Title screen A highly significant structure is observed in the Λ+cK−π+π+ mass spectrum, where the Λ+c baryon is reconstructed in the decay mode pK−π+. The structure is consistent with originating from a weakly decaying particle, identified as the doubly charmed baryon Ξ++cc. The difference between the masses of the Ξ++cc and Λ+c states is measured to be 1334.94±0.72(stat.)±0.27(syst.) MeV/c2, and the Ξ++ccmass is then determined to be 3621.40±0.72(stat.)±0.27(syst.)±0.14(Λ+c) MeV/c2, where the last uncertainty is due to the limited knowledge of the Λ+c mass. The state is observed in a sample of proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.7 fb−1, and confirmed in an additional sample of data collected at 8 TeV. Режим доступа: по договору с организацией-держателем ресурса |
| Lingua: | inglese |
| Pubblicazione: |
2017
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| Soggetti: | |
| Accesso online: | https://doi.org/10.1103/PhysRevLett.119.112001 |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=656598 |
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| 200 | 1 | |a Observation of the Doubly Charmed Baryon Ξ++cc |f R. Aaij [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 73 tit.] | ||
| 330 | |a A highly significant structure is observed in the Λ+cK−π+π+ mass spectrum, where the Λ+c baryon is reconstructed in the decay mode pK−π+. The structure is consistent with originating from a weakly decaying particle, identified as the doubly charmed baryon Ξ++cc. The difference between the masses of the Ξ++cc and Λ+c states is measured to be 1334.94±0.72(stat.)±0.27(syst.) MeV/c2, and the Ξ++ccmass is then determined to be 3621.40±0.72(stat.)±0.27(syst.)±0.14(Λ+c) MeV/c2, where the last uncertainty is due to the limited knowledge of the Λ+c mass. The state is observed in a sample of proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.7 fb−1, and confirmed in an additional sample of data collected at 8 TeV. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Physical Review Letters |o Scientific Journal |d 1958- | ||
| 463 | |t Vol. 119, iss. 4 |v [112001, 10 p.] |d 2017 | ||
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| 701 | 1 | |a Ajaltouni |b Z. J. |g Zeina | |
| 701 | 1 | |a Akar |b S. |g Simon | |
| 701 | 1 | |a Vagner |b A. R. |c physicist |c Vice-rector for educational activities of Tomsk Polytechnic University, candidate of physical and mathematical sciences |f 1983- |g Aleksandr Rudolfovich |3 (RuTPU)RU\TPU\pers\31560 | |
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| 856 | 4 | |u https://doi.org/10.1103/PhysRevLett.119.112001 | |
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