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We present the first extraction of the transversity distribution in the framework of collinear factorization based on the global analysis of pion-pair production in deep-inelastic scattering off transversely polarized targets and in…

High Energy Physics - Phenomenology · Physics 2018-05-23 Marco Radici , Alessandro Bacchetta

We present first observations of the transversity parton distribution based on an analysis of pion-pair production in deep inelastic scattering off transversely polarized targets. The extraction of transversity relies on the knowledge of…

High Energy Physics - Phenomenology · Physics 2011-10-27 Alessandro Bacchetta , A. Courtoy , Marco Radici

Observations of the transversity parton distribution based on an analysis of pion-pair production in deep inelastic scattering off transversely polarized targets are presented. This extraction relies on the knowledge of dihadron…

High Energy Physics - Phenomenology · Physics 2011-06-30 A. Courtoy , Alessandro Bacchetta , Marco Radici

The transversity distribution was recently extracted from deep-inelastic scattering processes producing hadron pairs in the final state. Together with a specific chiral-odd di-hadron fragmentation function, it is involved in the elementary…

High Energy Physics - Phenomenology · Physics 2016-11-11 Marco Radici

The transversity was recently extracted from data on the production of hadron pairs in semi-inclusive deep-inelastic scattering. This analysis can be conveniently performed in the framework of collinear factorization where the elementary…

High Energy Physics - Phenomenology · Physics 2017-09-04 Marco Radici

We present preliminary results for an updated extraction of the transversity parton distribution based on the analysis of pion-pair production in deep-inelastic scattering off transversely polarized targets in collinear factorization. Data…

High Energy Physics - Phenomenology · Physics 2015-06-23 Marco Radici , A. Courtoy , Alessandro Bacchetta

We consider the azimuthal correlations of charged hadron pairs with large total transverse momentum and small relative momentum, produced in proton-proton collisions with one transversely polarized proton. One of these correlations directly…

High Energy Physics - Phenomenology · Physics 2016-08-10 Marco Radici , Alessandro M. Ricci , Alessandro Bacchetta , Asmita Mukherjee

We present an updated extraction of the transversity parton distribution based on the analysis of pion-pair production in deep-inelastic scattering off transversely polarized targets in collinear factorization. Data for proton and deuteron…

High Energy Physics - Phenomenology · Physics 2015-03-23 Marco Radici , A. Courtoy , Alessandro Bacchetta , Marco Guagnelli

We summarize the latest achievements about the extraction of the transversity parton distribution and proton tensor charge based on an analysis of pion-pair production in deep-inelastic scattering off transversely polarized targets.…

High Energy Physics - Phenomenology · Physics 2015-06-17 Marco Radici , Alessandro Bacchetta , A. Courtoy

We present an extraction of the valence transversity parton distributions based on an analysis of pion-pair production in deep-inelastic scattering off transversely polarized targets. Recently released data for proton and deuteron targets…

High Energy Physics - Phenomenology · Physics 2015-06-12 Alessandro Bacchetta , A. Courtoy , Marco Radici

We have updated our extraction of the transversity parton distribution based on the analysis of pion-pair production in deep-inelastic scattering off transversely polarized targets in collinear factorization. The most recent COMPASS data…

High Energy Physics - Phenomenology · Physics 2015-10-13 Marco Radici

The observation of the quark transversity distribution requires another soft object sensitive to the quark's transverse spin. Dihadron fragmentation functions represent a convenient tool to analyze partonic spin, which can influence the…

High Energy Physics - Phenomenology · Physics 2017-08-23 Alessandro Bacchetta , Marco Radici

The transversity distribution can be measured at leading-twist in single-particle inclusive DIS, where it appears in connection with chiral-odd fragmentation functions. Among these functions, we focus on the time-reversal odd ones. They…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Bacchetta

Transversity distribution is one of the three fundamental parton distributions that completely describe polarized spin 1/2 nucleon. Its chiral odd nature prevented for many years its experimental exploration, however presently we have…

High Energy Physics - Phenomenology · Physics 2013-04-03 Alexei Prokudin

We give a brief overview on some of the latest results on the transversity function. We focus on some recent extractions from azimuthal asymmetries data measured in semi-inclusive deep-inelastic scattering processes, and on the impact of…

High Energy Physics - Phenomenology · Physics 2024-09-30 Carlo Flore

We perform the first global quantum chromodynamics (QCD) analysis of dihadron production for a comprehensive set of data in electron-positron annihilation, semi-inclusive deep-inelastic scattering, and proton-proton collisions, from which…

High Energy Physics - Phenomenology · Physics 2024-03-01 C. Cocuzza , A. Metz , D. Pitonyak , A. Prokudin , N. Sato , R. Seidl

In recent years information on the transversity distribution $h_1$ has been obtained combining the Collins asymmetry results from semi-inclusive deep inelastic scattering (SIDIS) data on transversely polarized nucleon targets with the…

High Energy Physics - Phenomenology · Physics 2019-06-12 V. Barone , F. Bradamante , A. Bressan , A. Kerbizi , A. Martin , A. Moretti , J. Matousek , G. Sbrizzai

It is studied the possibility of direct extraction of the transversity and its accompanying T-odd parton distribution function (PDF) from Drell-Yan (DY) processes with unpolarized pion beam and with both unpolarized and transversely…

High Energy Physics - Phenomenology · Physics 2009-01-07 A. Sissakian , O. Shevchenko , A. Nagaytsev , O. Denisov , O. Ivanov

In these proceedings, we propose an extraction of the valence transversity parton distributions. Based on an analysis of pion-pair production in deep-inelastic scattering off transversely polarized targets, this extraction of transversity…

High Energy Physics - Phenomenology · Physics 2013-06-28 A. Courtoy , Alessandro Bacchetta , Marco Radici

We first describe a new way to access the chiral odd transversity parton distribution in the proton through the photoproduction of lepton pairs. The basic ingredient is the interference of the usual Bethe-Heitler or Drell-Yan amplitudes…

High Energy Physics - Phenomenology · Physics 2011-06-02 M. El Beiyad , B. Pire , L. Szymanowski , S. Wallon
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