Analysis of Neutral B-Meson Decays into Two Muons
| Parent link: | Physical Review Letters Vol. 128, iss. 4.— 2022.— [041801, 13 p.] |
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| Համատեղ հեղինակներ: | , |
| Այլ հեղինակներ: | , , , , , |
| Ամփոփում: | Title screen Branching fraction and effective lifetime measurements of the rare decay B0s→μ+μ− and searches for the decays B0→μ+μ− and B0s→μ+μ−γ are reported using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a luminosity of 9 fb−1. The branching fraction B(B0s→μ+μ−)=(3.09+0.46+0.15−0.43−0.11)×10−9 and the effective lifetime τ(B0s→μ+μ−)=2.07±0.29±0.03 ps are measured, where the first uncertainty is statistical and the second systematic. No significant signal for B0→μ+μ− and B0s→μ+μ−γ decays is found and upper limits B(B0→μ+μ−)<2.6×10−10 and B(B0s→μ+μ−γ)<2.0×10−9 at the 95% C.L. are determined, where the latter is limited to the range mμμ>4.9 GeV/c2. The results are in agreement with the standard model expectations. |
| Լեզու: | անգլերեն |
| Հրապարակվել է: |
2022
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| Խորագրեր: | |
| Առցանց հասանելիություն: | http://earchive.tpu.ru/handle/11683/132534 https://doi.org/10.1103/PhysRevLett.128.041801 |
| Ձևաչափ: | Էլեկտրոնային Գրքի գլուխ |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669595 |
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| 200 | 1 | |a Analysis of Neutral B-Meson Decays into Two Muons |f R. Aaij, C. A. Beteta, T. Ackernley [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 59 tit.] | ||
| 330 | |a Branching fraction and effective lifetime measurements of the rare decay B0s→μ+μ− and searches for the decays B0→μ+μ− and B0s→μ+μ−γ are reported using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a luminosity of 9 fb−1. The branching fraction B(B0s→μ+μ−)=(3.09+0.46+0.15−0.43−0.11)×10−9 and the effective lifetime τ(B0s→μ+μ−)=2.07±0.29±0.03 ps are measured, where the first uncertainty is statistical and the second systematic. No significant signal for B0→μ+μ− and B0s→μ+μ−γ decays is found and upper limits B(B0→μ+μ−)<2.6×10−10 and B(B0s→μ+μ−γ)<2.0×10−9 at the 95% C.L. are determined, where the latter is limited to the range mμμ>4.9 GeV/c2. The results are in agreement with the standard model expectations. | ||
| 461 | |t Physical Review Letters | ||
| 463 | |t Vol. 128, iss. 4 |v [041801, 13 p.] |d 2022 | ||
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| 701 | 1 | |a Ackernley |b T. | |
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