COMPASS results on transverse-spin asymmetries in two-hadron production in SIDIS

Braun, Christopher (2012) COMPASS results on transverse-spin asymmetries in two-hadron production in SIDIS. Il nuovo cimento C, 35 (2). pp. 115-120. ISSN 1826-9885

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COMPASS is a fixed-target experiment at the CERN M2 beamline, with a rich physics program in spectroscopy and nucleon structure. The nucleon spin structure is investigated using a 160 GeV/c polarized μ+ beam and polarized solid state targets. The measurements of single-spin asymmetries in semi-inclusive deep inelastic scattering (SIDIS) on a transversely polarized target are an important part of the COMPASS physics program. A transversely polarized 6LiD (deuteron) target was used in 2002–2004. After taking the first data on a transversely polarized NH3 (proton) target in 2007, a full year of data taking followed in 2010 to increase precision. In this contribution we present for the first time the results from the 2010 data for the azimuthal asymmetries in two-hadron production which allow to investigate the transversity distribution function coupled to the two-hadron interference fragmentation function (FF).

Item Type: Article
Uncontrolled Keywords: Photon and charged-lepton interactions with hadrons ; Polarization in interactions and scattering ; Spin, parity, and isobaric spin
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 16 Apr 2020 16:57
Last Modified: 16 Apr 2020 16:57

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