Publication: Study of excited Ξ baryons with the P¯ ANDA detector
Дата
2021
Авторы
Barucca, G.
Davi, F.
Lancioni, G.
Mengucci, P.
Mochalov, V.
Semenov, P.
Vasiliev, A.
Семенов, Павел Александрович
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Аннотация
© 2021, The Author(s).The study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards N∗ and Δ spectroscopy. Nevertheless, the study of the double and triple strange baryon spectrum provides independent information to the N∗ and Δ spectra. The future antiproton experiment P¯ANDA will provide direct access to final states containing a Ξ¯ Ξ pair, for which production cross sections up to μb are expected in p¯p reactions. With a luminosity of L= 10 31 cm- 2 s- 1 in the first phase of the experiment, the expected cross sections correspond to a production rate of ∼106events/day. With a nearly 4 π detector acceptance, P¯ANDA will thus be a hyperon factory. In this study, reactions of the type p¯p → Ξ¯ +Ξ∗ - as well as p¯p → Ξ¯ ∗ +Ξ- with various decay modes are investigated. For the exclusive reconstruction of the signal events a full decay tree fit is used, resulting in reconstruction efficiencies between 3 and 5%. This allows high statistics data to be collected within a few weeks of data taking.
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Study of excited Ξ baryons with the P¯ ANDA detector / Barucca, G. [et al.] // European Physical Journal A. - 2021. - 57. - № 4. - 10.1140/epja/s10050-021-00444-5
URI
https://www.doi.org/10.1140/epja/s10050-021-00444-5
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https://openrepository.mephi.ru/handle/123456789/23944
https://www.scopus.com/record/display.uri?eid=2-s2.0-85104834772&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000644648800001
https://openrepository.mephi.ru/handle/123456789/23944