Publication: Observation of Xi(1620)(0) and Evidence for Xi(1690)(0) in Xi(+)(c) -> Xi(-) pi(+) pi(+) Decays
Дата
2019
Авторы
Sumihama, M.
Adachi, I.
Ahn, J. K.
Aihara, H.
Mizuk, R.
Pakhlov, P.
Zhukova, V.
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Аннотация
We report the first observation of the double strange baryon Xi(1620)(0) in its decay to Xi(-) pi(+) via Xi(+)(c) -> Xi(-)pi(+)pi(+) decays based on a 980 fb(-1) data sample collected with the Belle detector at the KEKB asymmetricenergy e(+)e(-) collider. The mass and width are measured to be 1610.4 +/- 6.0(stat)(-4.2)(+6.1) (syst) MeV/c(2) and 59.9 +/- 4.8(stat)(-7.1)(+2.8)(syst) MeV, respectively. We obtain 4.0 sigma evidence of the Xi(1690)(0) with the same data sample. These results shed light on the structure of hyperon resonances with strangeness S = -2.
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Цитирование
Observation of Xi(1620)(0) and Evidence for Xi(1690)(0) in Xi(+)(c) -> Xi(-) pi(+) pi(+) Decays / Sumihama, M [et al.] // Physical Review Letters. - 2019. - 122. - № 7. - 10.1103/PhysRevLett.122.072501
URI
https://www.doi.org/10.1103/PhysRevLett.122.072501
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https://openrepository.mephi.ru/handle/123456789/16587
https://www.scopus.com/record/display.uri?eid=2-s2.0-85062449899&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000459311800004
https://openrepository.mephi.ru/handle/123456789/16587