Publication: Measurement of the production cross section of 31 GeV/c protons on carbon via beam attenuation in a 90-cm-long target
Дата
2021
Авторы
Acharya, A.
Adhikary, H.
Aduszkiewicz, A.
Allison, K. K.
Brandin, A.
Golosov, O.
Kargin, N.
Kashirin, E.
Morozov, S.
Selyuzhenkov, I.
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Аннотация
© 2021 authors.The production cross section of 30.92 GeV/c protons on carbon is measured by the NA61/SHINE spectrometer at the CERN Super Proton Synchrotron by means of beam attenuation in a copy (replica) of the 90-cm-long target of the T2K neutrino oscillation experiment. The employed method for direct production cross-section estimation minimizes model corrections for elastic and quasielastic interactions. The obtained production cross section is σprod=227.6±0.8(stat)-3.2+1.9(sys)-0.8(mod) mb. It is in agreement with previous NA61/SHINE results obtained with a thin carbon target, while providing improved precision with a total fractional uncertainty of less than 2%. This direct measurement will reduce the uncertainty of the T2K neutrino flux prediction.
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Measurement of the production cross section of 31 GeV/c protons on carbon via beam attenuation in a 90-cm-long target / Acharya, A. [et al.] // Physical Review D. - 2021. - 103. - № 1. - 10.1103/PhysRevD.103.012006
URI
https://www.doi.org/10.1103/PhysRevD.103.012006
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https://openrepository.mephi.ru/handle/123456789/23582
https://www.scopus.com/record/display.uri?eid=2-s2.0-85099278273&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000606969800001
https://openrepository.mephi.ru/handle/123456789/23582