I - Experimental investigation of transverse spin asymmetries in mu-p SIDIS processes: Collins asymmetries

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10129002" target="_blank" >RIV/00216208:11320/12:10129002 - isvavai.cz</a>

Alternative codes found

RIV/68081731:_____/12:00390816 RIV/46747885:24510/12:#0000891 RIV/46747885:24220/12:#0002486

Result on the web

<a href="http://dx.doi.org/10.1016/j.physletb.2012.09.055" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2012.09.055</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2012.09.055" target="_blank" >10.1016/j.physletb.2012.09.055</a>

Result language

angličtina

Original language name

I - Experimental investigation of transverse spin asymmetries in mu-p SIDIS processes: Collins asymmetries

Original language description

The COMPASS Collaboration at CERN has measured the transverse spin azimuthal asymmetry of charged hadrons produced in semi-inclusive deep inelastic scattering using a 160 GeV mu(+) beam and a transversely polarised NH3 target. The Collins asymmetry of the proton was extracted in the Bjorken x range 0.003 < x < 0.7. These new precise measurements confirm previous measurements from the COMPASS and HERMES Collaborations, which exhibit a definite effect in the valence quark region. The asymmetries for negative and positive hadrons are similar in magnitude and opposite in sign. They are compatible with model calculations in which the u-quark transversity is opposite in sign and somewhat larger than the d-quark transversity distribution function. The asymmetry is extracted as a function of Bjorken x, the relative hadron energy z and the hadron transverse momentum p(T)(h). The high statistics and quality of the data also allow for more detailed investigations of the dependence on the kinemati

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BF - Elementary particle theory and high energy physics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ISSN

0370-2693

e-ISSN

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Volume of the periodical

717

Issue of the periodical within the volume

4-5

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

7

Pages from-to

376-382

UT code for WoS article

000310863300011

EID of the result in the Scopus database

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