First Observation of the Doubly Charmed Baryon Decay Ξ++cc→Ξ+cπ+; Physical Review Letters; Vol. 121, iss. 16
| Parent link: | Physical Review Letters: Scientific Journal.— , 1958- Vol. 121, iss. 16.— 2018.— [162002, 10 p.] |
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| Corporate Authors: | , |
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| Summary: | Title screen The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical significance of 5.9σ, confirming a recent observation of the baryon in the Λ+cK−π+π+ final state. The data sample used corresponds to an integrated luminosity of 1.7 fb−1, collected by the LHCb experiment in pp collisions at a center-of-mass energy of 13 TeV. The Ξ++cc mass is measured to be 3620.6±1.5(stat)±0.4(syst)±0.3(Ξ+c) MeV/c2 and is consistent with the previous result. The ratio of branching fractions between the decay modes is measured to be[B(Ξ++cc→Ξ+cπ+)×B(Ξ+c→pK−π+)]/[B(Ξ++cc→Λ+cK−π+π+)×B(Λ+c→pK−π+)]=0.035±0.009(stat)±0.003(syst). |
| Sprog: | engelsk |
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2018
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| Online adgang: | http://earchive.tpu.ru/handle/11683/57784 https://doi.org/10.1103/PhysRevLett.121.162002 |
| Format: | MixedMaterials Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658847 |
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| 200 | 1 | |a First Observation of the Doubly Charmed Baryon Decay Ξ++cc→Ξ+cπ+ |f R. Aaij [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 33 tit.] | ||
| 330 | |a The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical significance of 5.9σ, confirming a recent observation of the baryon in the Λ+cK−π+π+ final state. The data sample used corresponds to an integrated luminosity of 1.7 fb−1, collected by the LHCb experiment in pp collisions at a center-of-mass energy of 13 TeV. The Ξ++cc mass is measured to be 3620.6±1.5(stat)±0.4(syst)±0.3(Ξ+c) MeV/c2 and is consistent with the previous result. The ratio of branching fractions between the decay modes is measured to be[B(Ξ++cc→Ξ+cπ+)×B(Ξ+c→pK−π+)]/[B(Ξ++cc→Λ+cK−π+π+)×B(Λ+c→pK−π+)]=0.035±0.009(stat)±0.003(syst). | ||
| 461 | 1 | |t Physical Review Letters |o Scientific Journal |d 1958- | |
| 463 | 1 | |t Vol. 121, iss. 16 |v [162002, 10 p.] |d 2018 | |
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| 701 | 1 | |a Aidala |b C. |g Christine | |
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| 701 | 1 | |a Strokov |b S. A. |c physicist |c engineer of Tomsk Polytechnic University |f 1977- |g Sergey Aleksandrovich |3 (RuTPU)RU\TPU\pers\37442 | |
| 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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