Angular moments of the decay Λ b 0 → Λμ+μ− at low hadronic recoil
Электронный архив ТПУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Angular moments of the decay Λ b 0 → Λμ+μ− at low hadronic recoil
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| Автор |
Aaij, Roel
Adeva, Bernardo Adinolfi, Marco Panshin, Gennady Leonidovich Strokov, Sergey Aleksandrovich Vagner, Aleksandr Rudolfovich |
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| Тематика |
физика
адронное взаимодействие редкие рассеянные элементы |
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| Описание |
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.
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| Дата |
2020-01-29T10:04:20Z
2020-01-29T10:04:20Z 2018 |
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| Тип |
Article
Published version (info:eu-repo/semantics/publishedVersion) Journal article (info:eu-repo/semantics/article) |
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| Идентификатор |
Angular moments of the decay Λ b 0 → Λμ+μ− at low hadronic recoil / R. Aaij [et al.] // Journal of High Energy Physics. — 2018. — № 9. — [146, 26 p.].
http://earchive.tpu.ru/handle/11683/57720 10.1007/JHEP09(2018)146 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
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| Формат |
application/pdf
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| Издатель |
Томский политехнический университет
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| Источник |
Journal of High Energy Physics
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