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Поле DC | Значение | Язык |
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dc.contributor.author | Aaij, Roel | en |
dc.contributor.author | Beteta, Carlos Abellan | en |
dc.contributor.author | Eydelman, Semen Isaakovich | en |
dc.contributor.author | Kharisova, Anastasiya Evgenjevna | en |
dc.contributor.author | Panshin, Gennady Leonidovich | en |
dc.date.accessioned | 2022-08-18T04:03:40Z | - |
dc.date.available | 2022-08-18T04:03:40Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Observation of the Mass Difference between Neutral Charm-Meson Eigenstates / R. Aaij, C. A. Beteta, S. I. Eydelman [et al.] // Physical Review Letters. — 2021. — Vol. 127, iss. 11. — [111801, 12 p.]. | en |
dc.identifier.uri | http://earchive.tpu.ru/handle/11683/72772 | - |
dc.description.abstract | A measurement of mixing and CP violation in neutral charm mesons is performed using data reconstructed in proton-proton collisions collected by the LHCb experiment from 2016 to 2018, corresponding to an integrated luminosity of 5.4 fb−1. A total of 30.6 million D0→K0Sπ+π− decays are analyzed using a method optimized for the measurement of the mass difference between neutral charm-meson eigenstates. Allowing for CP violation in mixing and in the interference between mixing and decay, the mass and decay-width differences are measured to be xCP=[3.97±0.46(stat)±0.29(syst)]×10−3 and yCP=[4.59±1.20(stat)±0.85(syst)]×10−3, respectively. The CP-violating parameters are measured as Δx=[−0.27±0.18(stat)±0.01(syst)]×10−3 and Δy=[0.20±0.36(stat)±0.13(syst)]×10−3. This is the first observation of a nonzero mass difference in the D0 meson system, with a significance exceeding seven standard deviations. The data are consistent with CP symmetry and improve existing constraints on the associated parameters. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | en |
dc.publisher | American Physical Society | en |
dc.relation.ispartof | Physical Review Letters. 2021. Vol. 127, iss. 11 | en |
dc.rights | info:eu-repo/semantics/openAccess | - |
dc.rights | Attribution-NonCommercial 4.0 International | en |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | - |
dc.source | Physical Review Letters | en |
dc.title | Observation of the Mass Difference between Neutral Charm-Meson Eigenstates | en |
dc.type | Article | en |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dcterms.audience | Researches | en |
local.description.firstpage | 111801 | - |
local.filepath | reprint-nw-37895.pdf | - |
local.filepath | https://doi.org/10.1103/PhysRevLett.127.111801 | - |
local.identifier.bibrec | RU\TPU\network\37895 | - |
local.identifier.perskey | RU\TPU\pers\46775 | - |
local.identifier.perskey | RU\TPU\pers\40978 | - |
local.issue | 11 | - |
local.localtype | Статья | ru |
local.volume | 127 | - |
dc.identifier.doi | 10.1103/PhysRevLett.127.111801 | - |
Располагается в коллекциях: | Репринты научных публикаций |
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Файл | Описание | Размер | Формат | |
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reprint-nw-37895.pdf | 1,19 MB | Adobe PDF | Просмотреть/Открыть |
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