Angular moments of the decay Λ b 0 → Λμ+μ− at low hadronic recoil; Journal of High Energy Physics; № 9
| Parent link: | Journal of High Energy Physics № 9.— 2018.— [146, 26 p.] |
|---|---|
| Korporace: | , |
| Další autoři: | , , , , , |
| Shrnutí: | Title screen An analysis of the angular distribution of the decay Λ b 0 → Λμ+μ− is presented, using data collected with the LHCb detector between 2011 and 2016 and corresponding to an integrated luminosity of approximately 5 fb−1. Angular observables are determined using a moment analysis of the angular distribution at low hadronic recoil, corresponding to the dimuon invariant mass squared range 15 < q2 < 20 GeV2/c4. The full basis of observables is measured for the first time. The lepton-side, hadron-side and combined forward-backward asymmetries of the decay are determined to beAℓFB=−0.39±0.04(stat)±0.01(syst),AhFB=−0.30±0.05(stat)±0.02(syst),AℓhFB=+0.25±0.04(stat)±0.01(syst).AFBℓ=−0.39±0.04(stat)±0.01(syst),AFBh=−0.30±0.05(stat)±0.02(syst),AFBℓh=+0.25±0.04(stat)±0.01(syst).The measurements are consistent with Standard Model predictions. |
| Jazyk: | angličtina |
| Vydáno: |
2018
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| Témata: | |
| On-line přístup: | http://earchive.tpu.ru/handle/11683/57720 https://doi.org/10.1007/JHEP09(2018)146 |
| Médium: | Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658840 |
MARC
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| 200 | 1 | |a Angular moments of the decay Λ b 0 → Λμ+μ− at low hadronic recoil |f R. Aaij [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 38 tit.] | ||
| 330 | |a An analysis of the angular distribution of the decay Λ b 0 → Λμ+μ− is presented, using data collected with the LHCb detector between 2011 and 2016 and corresponding to an integrated luminosity of approximately 5 fb−1. Angular observables are determined using a moment analysis of the angular distribution at low hadronic recoil, corresponding to the dimuon invariant mass squared range 15 < q2 < 20 GeV2/c4. The full basis of observables is measured for the first time. The lepton-side, hadron-side and combined forward-backward asymmetries of the decay are determined to beAℓFB=−0.39±0.04(stat)±0.01(syst),AhFB=−0.30±0.05(stat)±0.02(syst),AℓhFB=+0.25±0.04(stat)±0.01(syst).AFBℓ=−0.39±0.04(stat)±0.01(syst),AFBh=−0.30±0.05(stat)±0.02(syst),AFBℓh=+0.25±0.04(stat)±0.01(syst).The measurements are consistent with Standard Model predictions. | ||
| 461 | 1 | |t Journal of High Energy Physics | |
| 463 | 1 | |t № 9 |v [146, 26 p.] |d 2018 | |
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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 | |
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