Probing transversity by measuring Λ polarisation in SIDIS; Physics Letters B; Vol. 824
| Parent link: | Physics Letters B Vol. 824.— 2022.— [136834, 10 p.] |
|---|---|
| Enti autori: | , |
| Altri autori: | , , , , , , , , , |
| Riassunto: | 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. |
| Lingua: | inglese |
| Pubblicazione: |
2022
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| Soggetti: | |
| Accesso online: | https://doi.org/10.1016/j.physletb.2021.136834 |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669640 |
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| 200 | 1 | |a Probing transversity by measuring Λ polarisation in SIDIS |f G. D. Alekseev, M. G. Alekseev, A. Amoroso [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References.: 53 tit.] | ||
| 330 | |a 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. | ||
| 461 | |t Physics Letters B | ||
| 463 | |t Vol. 824 |v [136834, 10 p.] |d 2022 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a quantum | |
| 610 | 1 | |a chromodynamics | |
| 610 | 1 | |a deep inelastic scattering | |
| 610 | 1 | |a lambda polarisation | |
| 610 | 1 | |a transversity | |
| 610 | 1 | |a COMPASS | |
| 610 | 1 | |a квантовая хромодинамика | |
| 610 | 1 | |a лямбда-расстояние | |
| 701 | 1 | |a Alekseev |b G. D. |g Gennady Dmitrievich | |
| 701 | 1 | |a Alekseev |b M. G. |g Maksim Gennadjevich | |
| 701 | 1 | |a Amoroso |b A. | |
| 701 | 1 | |a Burtsev |b V. E. |c mathematician |c Senior Lecturer of Tomsk Polytechnic University |f 1991- |g Vitaly Evgenjevich |3 (RuTPU)RU\TPU\pers\38282 | |
| 701 | 1 | |a Chumakov |b A. G. |c physicist |c laboratory assistant-researcher of Tomsk Polytechnic University |f 1992- |g Aleksandr Grigorjevich |3 (RuTPU)RU\TPU\pers\41079 | |
| 701 | 1 | |a Dusaev |b R. R. |c specialist in the field of nuclear physics |c Engineer of Tomsk Polytechnic University |f 1988- |g Renat Ramilyevich |3 (RuTPU)RU\TPU\pers\30972 |9 15210 | |
| 701 | 1 | |a Lyubovitskiy (Lyubovitskij) |b V. E. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Professor of the University of Tubingen (Germany) |f 1963- |g Valery Efimovich |3 (RuTPU)RU\TPU\pers\33385 |9 17080 | |
| 701 | 1 | |a Mamon |b S. A. |c physicist |c laboratory assistant-researcher of Tomsk Polytechnic University |f 1989- |g Sergey Aleksandrovich |3 (RuTPU)RU\TPU\pers\43559 | |
| 701 | 1 | |a Sharko |b K. A. |c физик |c лаборант-исследователь Томского политехнического университета |f 1985- |g Konstantin Andreevich |3 (RuTPU)RU\TPU\pers\41618 | |
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