Branching Fraction Measurements of the Rare B0s→ϕμ+μ− and B0s→f′2(1525)μ+μ− Decays; Physical Review Letters; Vol. 127, iss. 15
| Parent link: | Physical Review Letters Vol. 127, iss. 15.— 2021.— [151801, 11 p.] |
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| Egile korporatiboa: | , |
| Beste egile batzuk: | , , , , |
| Gaia: | Title screen The branching fraction of the rare B0s→ϕμ+μ− decay is measured using data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 6 fb−1, respectively. The branching fraction is reported in intervals of q2, the square of the dimuon invariant mass. In the q2 region between 1.1 and 6.0 GeV2/c4, the measurement is found to lie 3.6 standard deviations below a standard model prediction based on a combination of light cone sum rule and lattice QCD calculations. In addition, the first observation of the rare B0s→f′2(1525)μ+μ− decay is reported with a statistical significance of 9 standard deviations and its branching fraction is determined. |
| Hizkuntza: | ingelesa |
| Argitaratua: |
2021
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| Gaiak: | |
| Sarrera elektronikoa: | http://earchive.tpu.ru/handle/11683/72496 https://doi.org/10.1103/PhysRevLett.127.151801 |
| Formatua: | Baliabide elektronikoa Liburu kapitulua |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666692 |
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| 200 | 1 | |a Branching Fraction Measurements of the Rare B0s→ϕμ+μ− and B0s→f′2(1525)μ+μ− Decays |f R. Aaij, C. A. Beteta, S. I. Eydelman [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 44 tit.] | ||
| 330 | |a The branching fraction of the rare B0s→ϕμ+μ− decay is measured using data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 6 fb−1, respectively. The branching fraction is reported in intervals of q2, the square of the dimuon invariant mass. In the q2 region between 1.1 and 6.0 GeV2/c4, the measurement is found to lie 3.6 standard deviations below a standard model prediction based on a combination of light cone sum rule and lattice QCD calculations. In addition, the first observation of the rare B0s→f′2(1525)μ+μ− decay is reported with a statistical significance of 9 standard deviations and its branching fraction is determined. | ||
| 461 | |t Physical Review Letters | ||
| 463 | |t Vol. 127, iss. 15 |v [151801, 11 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
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