Probing transversity by measuring Λ polarisation in SIDIS

Probing transversity by measuring Λ polarisation in SIDIS

Detalhes bibliográficos
Parent link:Physics Letters B
Vol. 824.— 2022.— [136834, 10 p.]
Corporate Authors: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Школа базовой инженерной подготовки Отделение математики и информатики
Outros Autores: Alekseev G. D. Gennady Dmitrievich, Alekseev M. G. Maksim Gennadjevich, 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, Sharko K. A. Konstantin Andreevich, Vasilishin B. I. Bogdan Ivanovich
Resumo:Title screen
Based on the observation of sizeable target-transverse-spin asymmetries in single-hadron and hadron-pair production in Semi-Inclusive measurements of Deep Inelastic Scattering (SIDIS), the chiral-odd transversity quark distribution functions ℎ1 are nowadays well established. Several possible channels to access these functions were originally proposed. One candidate is the measurement of the polarisation of Λ hyperons produced in SIDIS off transversely polarised nucleons, where the transverse polarisation of the struck quark might be transferred to the final-state hyperon. In this article, we present the COMPASS results on the transversity-induced polarisation of Λ and Λ¯ hyperons produced in SIDIS off transversely polarised protons. Within the experimental uncertainties, no significant deviation from zero was observed. The results are discussed in the context of different models taking into account previous experimental results on ℎ1 and ℎ1.
Idioma:inglês
Publicado em: 2022
Assuntos:
электронный ресурс
труды учёных ТПУ
quantum
chromodynamics
deep inelastic scattering
lambda polarisation
transversity
COMPASS
квантовая хромодинамика
лямбда-расстояние
Acesso em linha:https://doi.org/10.1016/j.physletb.2021.136834
Formato: Recurso Electrónico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669640

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