Search for CP violation and observation of P violation in Λ0b→pπ−π+π− decays; Physical Review D; Vol. 102, iss. 5
| Parent link: | Physical Review D: particles, fields, gravitation, and cosmology Vol. 102, iss. 5.— 2020.— [051101, 12 p.] |
|---|---|
| 共著者: | , |
| その他の著者: | , , , , , , |
| 要約: | Title screen A search for CP violation in the Λ0b→pπ−π+π− decay is performed using LHCb data corresponding to an integrated luminosity of 6.6 fb−1 collected in pp collisions at center-of-mass energies of 7, 8 and 13 TeV. The analysis uses both triple product asymmetries and the unbinned energy test method. The highest significances of CP asymmetry are 2.9 standard deviations from triple product asymmetries and 3.0 standard deviations for the energy test method. Once the global p-value is considered, all results are consistent with no CP violation. Parity violation is observed at a significance of 5.5 standard deviations for the triple product asymmetry method and 5.3 standard deviations for the energy test method. The reported deviations are given in regions of phase space. |
| 言語: | 英語 |
| 出版事項: |
2020
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| 主題: | |
| オンライン･アクセス: | https://doi.org/10.1103/PhysRevD.102.051101 |
| フォーマット: | 電子媒体 図書の章 |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664693 |
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| 320 | |a [References: 33 tit.] | ||
| 330 | |a A search for CP violation in the Λ0b→pπ−π+π− decay is performed using LHCb data corresponding to an integrated luminosity of 6.6 fb−1 collected in pp collisions at center-of-mass energies of 7, 8 and 13 TeV. The analysis uses both triple product asymmetries and the unbinned energy test method. The highest significances of CP asymmetry are 2.9 standard deviations from triple product asymmetries and 3.0 standard deviations for the energy test method. Once the global p-value is considered, all results are consistent with no CP violation. Parity violation is observed at a significance of 5.5 standard deviations for the triple product asymmetry method and 5.3 standard deviations for the energy test method. The reported deviations are given in regions of phase space. | ||
| 461 | |t Physical Review D |o particles, fields, gravitation, and cosmology | ||
| 463 | |t Vol. 102, iss. 5 |v [051101, 12 p.] |d 2020 | ||
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