Precision measurement of the B+c meson mass
| Parent link: | Journal of High Energy Physics Vol. 2020, iss. 7.— 2020.— [123, 20 p.] |
|---|---|
| Autori kompanije: | , |
| Daljnji autori: | , , , , , , |
| Sažetak: | Title screen A precision measurement of the B+c meson mass is performed using proton- proton collision data collected with the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to a total integrated luminosity of 9.0 fb−1. The B+c mesons are reconstructed via the decays B+c → J/ψπ+, B+c → J/ψπ+π−π+, B+c→J/ψpp¯¯¯π+Bc+→J/ψpp¯π+, B+c→J/ψD+sBc+→J/ψDs+, B+c → J/ψ D0K+ and B+c→B0sπ+Bc+→Bs0π+. Combining the results of the individual decay channels, the B+c mass is measured to be 6274.47 ± 0.27 (stat) ± 0.17 (syst) MeV/c2. This is the most precise measurement of the B+c mass to date. The difference between the B+c and B0s meson masses is measured to be 907.75 ± 0.37 (stat) ± 0.27 (syst) MeV/c. |
| Jezik: | engleski |
| Izdano: |
2020
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| Teme: | |
| Online pristup: | https://doi.org/10.1007/JHEP07(2020)123 |
| Format: | Elektronički Poglavlje knjige |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664637 |
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| 200 | 1 | |a Precision measurement of the B+c meson mass |f R. Aaij, C. A. Beteta, T. Ackernley [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 80 tit.] | ||
| 330 | |a A precision measurement of the B+c meson mass is performed using proton- proton collision data collected with the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to a total integrated luminosity of 9.0 fb−1. The B+c mesons are reconstructed via the decays B+c → J/ψπ+, B+c → J/ψπ+π−π+, B+c→J/ψpp¯¯¯π+Bc+→J/ψpp¯π+, B+c→J/ψD+sBc+→J/ψDs+, B+c → J/ψ D0K+ and B+c→B0sπ+Bc+→Bs0π+. Combining the results of the individual decay channels, the B+c mass is measured to be 6274.47 ± 0.27 (stat) ± 0.17 (syst) MeV/c2. This is the most precise measurement of the B+c mass to date. The difference between the B+c and B0s meson masses is measured to be 907.75 ± 0.37 (stat) ± 0.27 (syst) MeV/c. | ||
| 461 | |t Journal of High Energy Physics | ||
| 463 | |t Vol. 2020, iss. 7 |v [123, 20 p.] |d 2020 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
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| 610 | 1 | |a QCD | |
| 610 | 1 | |a Spectroscopy | |
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| 701 | 1 | |a Beteta |b C. A. |g Carlos Abellan | |
| 701 | 1 | |a Ackernley |b T. | |
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| 856 | 4 | |u https://doi.org/10.1007/JHEP07(2020)123 | |
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