Measurement of PT-weighted Sivers asymmetries in leptoproduction of hadrons; Nuclear Physics B; Vol. 940

Chi tiết về thư mục
Parent link:Nuclear Physics B
Vol. 940.— 2019.— [Р. 34-53]
Tác giả của công ty: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Tác giả khác: Amoroso A., Burtsev V. E. Vitaly Evgenjevich, Chumakov A. G. Aleksandr Grigorjevich, Dusaev R. R. Renat Ramilyevich, Lyubovitskiy (Lyubovitskij) V. E. Valery Efimovich, Mamon S. A. Sergey Aleksandrovich, Vasilishin B. I. Bogdan Ivanovich
Tóm tắt:Title screen
The transverse spin asymmetries measured in semi-inclusive leptoproduction of hadrons, when weighted with the hadron transverse momentum , allow for the extraction of important transverse-momentum-dependent distribution functions. In particular, the weighted Sivers asymmetries provide direct information on the Sivers function, which is a leading-twist distribution that arises from a correlation between the transverse momentum of an unpolarised quark in a transversely polarised nucleon and the spin of the nucleon. Using the high-statistics data collected by the COMPASS Collaboration in 2010 with a transversely polarised proton target, we have evaluated two types of -weighted Sivers asymmetries, which are both proportional to the product of the first transverse moment of the Sivers function and of the fragmentation function. The results are compared to the standard unweighted Sivers asymmetries and used to extract the first transverse moments of the Sivers distributions for u and d quarks.
Режим доступа: по договору с организацией-держателем ресурса
Ngôn ngữ:Tiếng Anh
Được phát hành: 2019
Những chủ đề:
Truy cập trực tuyến:https://doi.org/10.1016/j.nuclphysb.2018.12.024
Định dạng: Điện tử Chương của sách
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660065

Những quyển sách tương tự