000 02196nab a2200349 c 4500
001 vtls000533193
003 RU-ToGU
005 20210907024509.0
007 cr |
008 181202|2015 xxu s a eng d
024 7 _a10.1103/PhysRevLett.115.262001
_2doi
035 _ato000533193
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 0 _aDetermination of the ratio of b-quark fragmentation fractions fs/fd in pp collisions at √s = 7 TeV with the ATLAS detector
_cG. Aad, B. Abbott, J. Abdallah [et.al.]
504 _aБиблиогр.: 23 назв.
520 3 _aWith an integrated luminosity of 2.47  fb−1 recorded by the ATLAS experiment at the LHC, the exclusive decays B0s→J/ψϕ and B0d→J/ψK*0 of B mesons produced in pp collisions at s√=7  TeV are used to determine the ratio of fragmentation fractions fs/fd. From the observed B0s→J/ψϕ and B0d→J/ψK*0 yields, the quantity (fs/fd)[B(B0s→J/ψϕ)/B(B0d→J/ψK*0)] is measured to be 0.1990.004(stat)0.008(syst). Using a recent theory prediction for [B(B0s→J/ψϕ)/B(B0d→J/ψK*0)] yields (fs/fd)=0.2400.004(stat)0.010(syst)0.017(th). This result is based on a new approach that provides a significant improvement of the world average.
653 _aATLAS, детектор
653 _aБольшой адронный коллайдер
653 _aкварки
653 _aстолкновение частиц
655 4 _aстатьи в журналах
_9681159
700 1 _aAad, G.
_9116039
700 1 _aAbdallah, J.
_9116040
700 1 _aChelkov, G. A.
_996983
700 1 _aAbbott, B.
_9116041
710 2 _aТомский государственный университет
_bРадиофизический факультет
_bНаучные подразделения РФФ
_9107063
773 0 _tPhysical Review Letters
_d2015
_gVol. 115, № 26. P. 262001-1-262001-18
_x0031-9007
852 4 _aRU-ToGU
856 7 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000533193
908 _aстатья
999 _c393028