Publication:
Search for a doubly charged DDK bound state in Upsilon(1S, 2S) inclusive decays and via direct production in e(+)e(-) collisions at root s=10.520, 10.580, and 10.867 GeV

Дата
2020
Авторы
Li, Y.
Jia, S.
Shen, C. P.
Adachi, I.
Pakhlov, P.
Journal Title
Journal ISSN
Volume Title
Издатель
Научные группы
Логотип проекта
Научная группа
Belle Collaboration
Организационные подразделения
OrgUnit Logo
Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
Выпуск журнала
Аннотация
We report the results of a first search for a doubly charged DDK bound state, denoted the R++, in Upsilon(1S) and Upsilon(2S) inclusive decays and via direct production in e(+)e(-) collisions at root s = 10.520, 10.580, and 10.867 GeV. The search uses data accumulated with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. No significant signals are observed in the D+Ds*(+) invariant-mass spectra of all studied modes. The 90% credibility level upper limits on their product branching fractions in Upsilon(1S) and Upsilon(2S) inclusive decays (B(Upsilon(1S, 2S) -4 R++ + anything) x B(R++ -> D+D-s*(+))), the product values of Born cross section and branching fraction in e(+)e(-) collisions (sigma(e(+)e(-) -> R++ + anything) x B(R++ -> D+D-s*(+))) at root s = 10.520, 10.580, and 10.867 GeV under different assumptions of R++ masses varying from 4.13 to 4.17 GeV/c(2) and widths varying from 0 to 5 MeV are obtained.
Описание
Ключевые слова
Цитирование
Search for a doubly charged DDK bound state in Upsilon(1S, 2S) inclusive decays and via direct production in e(+)e(-) collisions at root s=10.520, 10.580, and 10.867 GeV / Li, Y [et al.] // Physical Review D. - 2020. - 102. - № 11. - 10.1103/PhysRevD.102.112001
URI
https://www.doi.org/10.1103/PhysRevD.102.112001
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85098085345&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000594994400002
 https://openrepository.mephi.ru/handle/123456789/22680
Коллекции
Публикации