First Glances at the Transversity Parton Distribution through Dihadron Fragmentation Functions

被引：84

作者：

Bacchetta, Alessandro ^{[1
,2
]}

Courtoy, Aurore ^{[2
]}

Radici, Marco ^{[2
]}

机构：

[1] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy

[2] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 01期

关键词：

EVOLUTION; QUARKS; POLARIZATION;

D O I：

10.1103/PhysRevLett.107.012001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 dihadron fragmentation functions, which we take from electron-positron annihilation measurements. This is the first attempt to determine the transversity distribution in the framework of collinear factorization.

引用

页数：4

共 40 条

[1] Effects of transversity in deep-inelastic scattering by polarized protons [J].

Airapetian, A. ;

Akopovz, N. ;

Akopov, Z. ;

Aschenauer, E. C. ;

Augustyniak, W. ;

Avakian, R. ;

Avetissian, A. ;

Avetisyan, E. ;

Bacchetta, A. ;

Belostotski, S. ;

Bianchi, N. ;

Blok, H. P. ;

Borissov, A. ;

Bowles, J. ;

Brodsky, I. ;

Bryzgalov, V. ;

Burns, J. ;

Capiluppi, M. ;

Capitani, G. P. ;

Cisbani, E. ;

Ciullo, G. ;

Contalbrigo, M. ;

Dalpiaz, P. F. ;

Deconinck, W. ;

De Leo, R. ;

De Nardo, L. ;

De Sanctis, E. ;

Diefenthaler, M. ;

Di Nezza, P. ;

Dueren, M. ;

Ehrenfried, M. ;

Elbakian, G. ;

Ellinghaus, F. ;

Elschenbroichk, U. ;

Fabbrif, R. ;

Fantonij, A. ;

Felawka, L. ;

Frullani, S. ;

Gabbert, D. ;

Gapienkos, G. ;

Gapienkos, V. ;

Garibaldi, F. ;

Gharibyan, V. ;

Giordano, F. ;

Gliske, S. ;

Golembiovskaya, M. ;

Hadjidakis, C. ;

Hartig, M. ;

Hasch, D. ;

Hill, G. .

PHYSICS LETTERS B, 2010, 693 (01) :11-16

[2] Evidence for a transverse single-spin asymmetry in leptoproduction of π+π- pairs [J].

Airapetian, A. ;

Akopov, N. ;

Akopov, Z. ;

Andrus, A. ;

Aschenauer, E. C. ;

Augustyniak, W. ;

Avakian, R. ;

Avetissian, A. ;

Avetissian, E. ;

Bacchetta, A. ;

Barion, L. ;

Belostotski, S. ;

Bianchi, N. ;

Blok, H. P. ;

Boettcher, H. ;

Bonomo, C. ;

Borissov, A. ;

Borysenko, A. ;

Bruell, A. ;

Bryzgalov, V. ;

Capiluppi, M. ;

Capitani, G. P. ;

Cisbani, E. ;

Ciullo, G. ;

Contalbrigo, M. ;

Dalpiaz, P. F. ;

Deconinck, W. ;

De Leo, R. ;

Demey, M. ;

De Nardo, L. ;

De Sanctis, E. ;

Devitsin, E. ;

Diefenthaler, M. ;

Di Nezza, P. ;

Dreschler, J. ;

Dueren, M. ;

Ehrenfried, M. ;

Elalaoui-Moulay, A. ;

Elbakian, G. ;

Ellinghaus, F. ;

Elschenbroich, U. ;

Fabbri, R. ;

Fantoni, A. ;

Felawka, L. ;

Frullani, S. ;

Funel, A. ;

Gapienko, G. ;

Gapienko, V. ;

Garibaldi, F. ;

Gavrilov, G. .

JOURNAL OF HIGH ENERGY PHYSICS, 2008, (06)

[3] Measurement of the Collins and Sivers asymmetries on transversely polarised protons [J].

Alekseev, M. G. ;

Alexakhin, V. Yu ;

Alexandrov, Yu ;

Alexeev, G. D. ;

Amoroso, A. ;

Austregesilo, A. ;

Badelek, B. ;

Balestra, F. ;

Ball, J. ;

Barth, J. ;

Baum, G. ;

Bedfer, Y. ;

Bernhard, J. ;

Bertini, R. ;

Bettinelli, M. ;

Birsa, R. ;

Bisplinghoff, J. ;

Bordalo, P. ;

Bradamante, F. ;

Bravar, A. ;

Bressan, A. ;

Brona, G. ;

Burtin, E. ;

Bussa, M. P. ;

Chaberny, D. ;

Chiosso, M. ;

Chung, S. U. ;

Cicuttin, A. ;

Colantoni, M. ;

Crespo, M. L. ;

Dalla Torre, S. ;

Das, S. ;

Dasgupta, S. S. ;

Denisov, O. Yu ;

Dhara, L. ;

Diaz, V. ;

Donskov, S. V. ;

Doshita, N. ;

Duic, V. ;

Duennweber, W. ;

Efremov, A. ;

El Alaoui, A. ;

Elia, C. ;

Eversheim, P. D. ;

Eyrich, W. ;

Faessler, M. ;

Ferrero, A. ;

Filin, A. ;

Finger, M. ;

Finger, M., Jr. .

PHYSICS LETTERS B, 2010, 692 (04) :240-246

[4] Transversity and Collins functions from SIDIS and e+e- data [J].

Anselmino, M. ;

Boglione, M. ;

D'Alesio, U. ;

Kotzinian, A. ;

Murgia, F. ;

Prokudin, A. ;

Turk, C. .

PHYSICAL REVIEW D, 2007, 75 (05)

[5] Update on transversity and Collins functions from SIDIS and e+e- data [J].

Anselmino, M. ;

Boglione, M. ;

D'Alesio, U. ;

Kotzinian, A. ;

Murgia, F. ;

Prokudin, A. ;

Melis, S. .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2009, 191 :98-107

[6] Sivers effect for pion and kaon production in semi-inclusive deep inelastic scattering [J].

Anselmino, M. ;

Boglione, M. ;

D'Alesio, U. ;

Kotzinian, A. ;

Melis, S. ;

Murgia, F. ;

Prokudin, A. ;

Tuerk, C. .

EUROPEAN PHYSICAL JOURNAL A, 2009, 39 (01) :89-100

[7] TRANSVERSELY POLARIZED PARTON DENSITIES, THEIR EVOLUTION AND THEIR MEASUREMENT [J].

ARTRU, X ;

MEKHFI, M .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1990, 45 (04) :669-676

[8] Measuring transverse spin correlations by 4-particle correlations in e(+)e(-)->2 jets [J].

Artru, X ;

Collins, J .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1996, 69 (02) :277-286

[9] Partial-wave analysis of two-hadron fragmentation functions [J].

Bacchetta, A ;

Radici, M .

PHYSICAL REVIEW D, 2003, 67 (09)

[10] Modeling dihadron fragmentation functions [J].

Bacchetta, Alessandro ;

Radici, Marco .

PHYSICAL REVIEW D, 2006, 74 (11)

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