|
ИСТИНА |
Войти в систему Регистрация |
ФНКЦ РР |
||
Measurement of antiproton production from antihyperon decays in pHe collisions at sNN−−−√=110 GeVстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Соломин А.Н., LHCb Collaboration
- Журнал: European Physical Journal C
- Год издания: 2023
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- DOI: 10.1140/epjc/s10052-023-11673-x
- Аннотация: The interpretation of cosmic antiproton flux measurements from space-borne experiments is currently limited by the knowledge of the antiproton production cross-section in collisions between primary cosmic rays and the interstellar medium. Using collisions of protons with an energy of 6.5TeV incident on helium nuclei at rest in the proximity of the interaction region of the LHCb experiment, the ratio of antiprotons originating from antihyperon decays to prompt production is measured for antiproton momenta between 12 and 110GeV/c. The dominant antihyperon contribution, namely Λ¯¯¯¯→p¯¯¯π+ decays from promptly produced Λ¯¯¯¯particles, is also exclusively measured. The results complement the measurement of prompt antiproton production obtained from the same data sample. At the energy scale of this measurement, the antihyperon contributions to antiproton production are observed to be significantly larger than predictions of commonly used hadronic production models.
- Добавил в систему: Никитина Виктория Владимировна