Probing transversity by measuring Λ polarisation in SIDIS; Physics Letters B; Vol. 824

Probing transversity by measuring Λ polarisation in SIDIS; Physics Letters B; Vol. 824

Détails bibliographiques
Parent link:Physics Letters B
Vol. 824.— 2022.— [136834, 10 p.]
Collectivités auteurs: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Школа базовой инженерной подготовки Отделение математики и информатики
Autres auteurs: 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
Résumé: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.
Langue:anglais
Publié: 2022
Sujets:
электронный ресурс
труды учёных ТПУ
quantum
chromodynamics
deep inelastic scattering
lambda polarisation
transversity
COMPASS
квантовая хромодинамика
лямбда-расстояние
Accès en ligne:https://doi.org/10.1016/j.physletb.2021.136834
Format: Électronique Chapitre de livre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669640

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