Related papers: The Sivers Function from SIDIS Data

On transverse single-spin asymmetries in $D$-meson production at the SPD NICA experiment

In the present study we are interested in the Sivers effect in process $p^{\uparrow}p\to DX$. We calculate the transverse single-spin asymmetry (TSSA) of $D$-meson production within two phenomenological models, namely the Generalized Parton…

High Energy Physics - Phenomenology · Physics 2023-07-12 Anton Karpishkov , Vladimir Saleev

Adding quark spin effects to PYTHIA string fragmentation

Quark spin effects in hadronization have been recently included in the PYTHIA 8 event generator for the simulation of the deep inelastic scattering (DIS) process off a polarized nucleon target via the external StringSpinner package. The…

High Energy Physics - Phenomenology · Physics 2022-10-25 Albi Kerbizi , Leif Lönnblad

Transversity measurements at HERMES

Azimuthal single-spin asymmetries (SSA) in semi-inclusive electroproduction of charged pions in deep-inelastic scattering (DIS) of positrons on a transversely polarised hydrogen target are presented. Azimuthal moments for both the Collins…

High Energy Physics - Experiment · Physics 2009-11-11 Markus Diefenthaler

Measurement of the transverse single-spin asymmetry in $p^\uparrow+p \to W^{\pm}/Z^0$ at RHIC

We present the measurement of the transverse single-spin asymmetry of weak boson production in transversely polarized proton-proton collisions at $\sqrt{s} = 500~\text{GeV}$ by the STAR experiment at RHIC. The measured observable is…

Nuclear Experiment · Physics 2016-04-06 STAR Collaboration , L. Adamczyk , J. K. Adkins , G. Agakishiev , M. M. Aggarwal , Z. Ahammed , I. Alekseev , A. Aparin , D. Arkhipkin , E. C. Aschenauer , A. Attri , G. S. Averichev , X. Bai , V. Bairathi , A. Banerjee , R. Bellwied , A. Bhasin , A. K. Bhati , P. Bhattarai , J. Bielcik , J. Bielcikova , L. C. Bland , I. G. Bordyuzhin , J. Bouchet , J. D. Brandenburg , A. V. Brandin , I. Bunzarov , J. Butterworth , H. Caines , M. Calderón de la Barca Sánchez , J. M. Campbell , D. Cebra , I. Chakaberia , P. Chaloupka , Z. Chang , S. Chattopadhyay , J. H. Chen , X. Chen , J. Cheng , M. Cherney , W. Christie , G. Contin , H. J. Crawford , S. Das , L. C. De Silva , R. R. Debbe , T. G. Dedovich , J. Deng , A. A. Derevschikov , B. di Ruzza , L. Didenko , C. Dilks , X. Dong , J. L. Drachenberg , J. E. Draper , C. M. Du , L. E. Dunkelberger , J. C. Dunlop , L. G. Efimov , J. Engelage , G. Eppley , R. Esha , O. Evdokimov , O. Eyser , R. Fatemi , S. Fazio , P. Federic , J. Fedorisin , Z. Feng , P. Filip , Y. Fisyak , C. E. Flores , L. Fulek , C. A. Gagliardi , D. Garand , F. Geurts , A. Gibson , M. Girard , L. Greiner , D. Grosnick , D. S. Gunarathne , Y. Guo , S. Gupta , A. Gupta , W. Guryn , A. I. Hamad , A. Hamed , R. Haque , J. W. Harris , L. He , S. Heppelmann , S. Heppelmann , A. Hirsch , G. W. Hoffmann , S. Horvat , H. Z. Huang , X. Huang , B. Huang , T. Huang , P. Huck , T. J. Humanic , G. Igo , W. W. Jacobs , H. Jang , A. Jentsch , J. Jia , K. Jiang , E. G. Judd , S. Kabana , D. Kalinkin , K. Kang , K. Kauder , H. W. Ke , D. Keane , A. Kechechyan , Z. H. Khan , D. P. Kikoła , I. Kisel , A. Kisiel , L. Kochenda , D. D. Koetke , L. K. Kosarzewski , A. F. Kraishan , P. Kravtsov , K. Krueger , L. Kumar , M. A. C. Lamont , J. M. Landgraf , K. D. Landry , J. Lauret , A. Lebedev , R. Lednicky , J. H. Lee , X. Li , C. Li , W. Li , X. Li , Y. Li , T. Lin , M. A. Lisa , F. Liu , T. Ljubicic , W. J. Llope , M. Lomnitz , R. S. Longacre , X. Luo , G. L. Ma , L. Ma , R. Ma , Y. G. Ma , N. Magdy , R. Majka , A. Manion , S. Margetis , C. Markert , D. McDonald , K. Meehan , J. C. Mei , N. G. Minaev , S. Mioduszewski , D. Mishra , B. Mohanty , M. M. Mondal , D. A. Morozov , M. K. Mustafa , B. K. Nandi , Md. Nasim , T. K. Nayak , G. Nigmatkulov , T. Niida , L. V. Nogach , S. Y. Noh , J. Novak , S. B. Nurushev , G. Odyniec , A. Ogawa , K. Oh , V. A. Okorokov , D. Olvitt , B. S. Page , R. Pak , Y. X. Pan , Y. Pandit , Y. Panebratsev , B. Pawlik , H. Pei , C. Perkins , P. Pile , J. Pluta , K. Poniatowska , J. Porter , M. Posik , A. M. Poskanzer , N. K. Pruthi , J. Putschke , H. Qiu , A. Quintero , S. Ramachandran , S. Raniwala , R. Raniwala , R. L. Ray , H. G. Ritter , J. B. Roberts , O. V. Rogachevskiy , J. L. Romero , A. Roy , L. Ruan , J. Rusnak , O. Rusnakova , N. R. Sahoo , P. K. Sahu , I. Sakrejda , S. Salur , J. Sandweiss , A. Sarkar , J. Schambach , R. P. Scharenberg , A. M. Schmah , W. B. Schmidke , N. Schmitz , J. Seger , P. Seyboth , N. Shah , E. Shahaliev , P. V. Shanmuganathan , M. Shao , M. K. Sharma , B. Sharma , W. Q. Shen , Z. Shi , S. S. Shi , Q. Y. Shou , E. P. Sichtermann , R. Sikora , M. Simko , S. Singha , M. J. Skoby , D. Smirnov , N. Smirnov , W. Solyst , L. Song , P. Sorensen , H. M. Spinka , B. Srivastava , T. D. S. Stanislaus , M. Stepanov , R. Stock , M. Strikhanov , B. Stringfellow , M. Sumbera , B. Summa , X. M. Sun , Y. Sun , Z. Sun , B. Surrow , D. N. Svirida , Z. Tang , A. H. Tang , T. Tarnowsky , A. Tawfik , J. Thäder , J. H. Thomas , A. R. Timmins , D. Tlusty , T. Todoroki , M. Tokarev , S. Trentalange , R. E. Tribble , P. Tribedy , S. K. Tripathy , O. D. Tsai , T. Ullrich , D. G. Underwood , I. Upsal , G. Van Buren , G. van Nieuwenhuizen , M. Vandenbroucke , R. Varma , A. N. Vasiliev , R. Vertesi , F. Videbæk , S. Vokal , S. A. Voloshin , A. Vossen , H. Wang , G. Wang , F. Wang , Y. Wang , Y. Wang , J. S. Wang , J. C. Webb , G. Webb , L. Wen , G. D. Westfall , H. Wieman , S. W. Wissink , R. Witt , Y. Wu , Z. G. Xiao , W. Xie , G. Xie , K. Xin , J. Xu , Z. Xu , Y. F. Xu , Q. H. Xu , H. Xu , N. Xu , Q. Yang , Y. Yang , S. Yang , C. Yang , Y. Yang , Y. Yang , Z. Ye , Z. Ye , P. Yepes , L. Yi , K. Yip , I. -K. Yoo , N. Yu , H. Zbroszczyk , W. Zha , J. Zhang , Y. Zhang , J. Zhang , S. Zhang , S. Zhang , J. B. Zhang , Z. Zhang , X. P. Zhang , J. Zhao , C. Zhong , L. Zhou , X. Zhu , Y. Zoulkarneeva , M. Zyzak

ECCE Sensitivity Studies for Single Hadron Transverse Single Spin Asymmetry Measurements

We performed feasibility studies for various single transverse spin measurements that are related to the Sivers effect, transversity and the tensor charge, and the Collins fragmentation function. The processes studied include semi-inclusive…

High Energy Physics - Experiment · Physics 2023-02-01 R. Seidl , A. Vladimirov , D. Pitonyak , A. Prokudin , J. K. Adkins , Y. Akiba , A. Albataineh , M. Amaryan , I. C. Arsene , C. Ayerbe Gayoso , J. Bae , X. Bai , M. D. Baker , M. Bashkanov , R. Bellwied , F. Benmokhtar , V. Berdnikov , J. C. Bernauer , F. Bock , W. Boeglin , M. Borysova , E. Brash , P. Brindza , W. J. Briscoe , M. Brooks , S. Bueltmann , M. H. S. Bukhari , A. Bylinkin , R. Capobianco , W. -C. Chang , Y. Cheon , K. Chen , K. -F. Chen , K. -Y. Cheng , M. Chiu , T. Chujo , Z. Citron , E. Cline , E. Cohen , T. Cormier , Y. Corrales Morales , C. Cotton , J. Crafts , C. Crawford , S. Creekmore , C. Cuevas , J. Cunningham , G. David , C. T. Dean , M. Demarteau , S. Diehl , N. Doshita , R. Dupré , J. M. Durham , R. Dzhygadlo , R. Ehlers , L. El Fassi , A. Emmert , R. Ent , C. Fanelli , R. Fatemi , S. Fegan , M. Finger , M. Finger , J. Frantz , M. Friedman , I. Friscic , D. Gangadharan , S. Gardner , K. Gates , F. Geurts , R. Gilman , D. Glazier , E. Glimos , Y. Goto , N. Grau , S. V. Greene , A. Q. Guo , L. Guo , S. K. Ha , J. Haggerty , T. Hayward , X. He , O. Hen , D. W. Higinbotham , M. Hoballah , T. Horn , A. Hoghmrtsyan , P. -h. J. Hsu , J. Huang , G. Huber , A. Hutson , K. Y. Hwang , C. E. Hyde , M. Inaba , T. Iwata , H. S. Jo , K. Joo , N. Kalantarians , G. Kalicy , K. Kawade , S. J. D. Kay , A. Kim , B. Kim , C. Kim , M. Kim , Y. Kim , Y. Kim , E. Kistenev , V. Klimenko , S. H. Ko , I. Korover , W. Korsch , G. Krintiras , S. Kuhn , C. -M. Kuo , T. Kutz , J. Lajoie , D. Lawrence , S. Lebedev , H. Lee , J. S. H. Lee , S. W. Lee , Y. -J. Lee , W. Li , W. Li , X. Li , X. Li , Y. T. Liang , S. Lim , C. -H. Lin , D. X. Lin , K. Liu , M. X. Liu , K. Livingston , N. Liyanage , W. J. Llope , C. Loizides , E. Long , R. -S. Lu , Z. Lu , W. Lynch , D. Marchand , M. Marcisovsky , C. Markert , P. Markowitz , H. Marukyan , P. McGaughey , M. Mihovilovic , R. G. Milner , A. Milov , Y. Miyachi , A. Mkrtchyan , P. Monaghan , R. Montgomery , D. Morrison , A. Movsisyan , H. Mkrtchyan , A. Mkrtchyan , C. Munoz Camacho , M. Murray , K. Nagai , J. Nagle , I. Nakagawa , C. Nattrass , D. Nguyen , S. Niccolai , R. Nouicer , G. Nukazuka , M. Nycz , V. A. Okorokov , S. Orešić , J. D. Osborn , C. O'Shaughnessy , S. Paganis , Z Papandreou , S. F. Pate , M. Patel , C. Paus , G. Penman , M. G. Perdekamp , D. V. Perepelitsa , H. Periera da Costa , K. Peters , W. Phelps , E. Piasetzky , C. Pinkenburg , I. Prochazka , T. Protzman , M. L. Purschke , J. Putschke , J. R. Pybus , R. Rajput-Ghoshal , J. Rasson , B. Raue , K. Read , K. Røed , R. Reed , J. Reinhold , E. L. Renner , J. Richards , C. Riedl , T. Rinn , J. Roche , G. M. Roland , G. Ron , M. Rosati , C. Royon , J. Ryu , S. Salur , N. Santiesteban , R. Santos , M. Sarsour , J. Schambach , A. Schmidt , N. Schmidt , C. Schwarz , J. Schwiening , A. Sickles , P. Simmerling , S. Sirca , D. Sharma , Z. Shi , T. -A. Shibata , C. -W. Shih , S. Shimizu , U. Shrestha , K. Slifer , K. Smith , D. Sokhan , R. Soltz , W. Sondheim , J. Song , J. Song , I. I. Strakovsky , P. Steinberg , P. Stepanov , J. Stevens , J. Strube , P. Sun , X. Sun , K. Suresh , V. Tadevosyan , W. -C. Tang , S. Tapia Araya , S. Tarafdar , L. Teodorescu , D. Thomas , A. Timmins , L. Tomasek , N. Trotta , R. Trotta , T. S. Tveter , E. Umaka , A. Usman , H. W. van Hecke , C. Van Hulse , J. Velkovska , E. Voutier , P. K. Wang , Q. Wang , Y. Wang , Y. Wang , D. P. Watts , N. Wickramaarachchi , L. Weinstein , M. Williams , C. -P. Wong , L. Wood , M. H. Wood , C. Woody , B. Wyslouch , Z. Xiao , Y. Yamazaki , Y. Yang , Z. Ye , H. D. Yoo , M. Yurov , N. Zachariou , W. A. Zajc , J. Zhang , Y. Zhang , Y. X. Zhao , X. Zheng , P. Zhuang

Azimuthal single spin asymmetries in SIDIS in the light of chiral symmetry breaking

An attempt is made to understand the z-dependence of the azimuthal single spin asymmetries observed by the HERMES collaboration in terms of chiral models based on effective quark and Goldstone boson degrees of freedom. The effects of…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Schweitzer , A. Bacchetta

Double quarkonium hadroproduction as a probe of gluon Sivers function

The prediction of single spin asymmetry (SSA) in double $\rm J/\psi$ production in proton-proton collision is given out within the framework of non-relativistic QCD, using the recently obtained best fit parameters for the gluon Sivers…

High Energy Physics - Phenomenology · Physics 2019-06-13 Xuan Luo , Hao Sun , Tichouk

Single-Spin Asymmetries in Semi-inclusive Deep Inelastic Scattering and Drell-Yan Processes

We examine in detail the diagrammatic mechanisms which provide the change of sign between the single transverse spin asymmetries measured in semi-inclusive deep inelastic scattering (SIDIS) and in the Drell-Yan process (DY). This asymmetry…

High Energy Physics - Phenomenology · Physics 2013-08-09 Stanley J. Brodsky , Dae Sung Hwang , Yuri V. Kovchegov , Ivan Schmidt , Matthew D. Sievert

Energy Evolution for the Sivers Asymmetries in Hard Processes

We investigate the energy evolution of the azimuthal spin asymmetries in semi-inclusive hadron production in deep inelastic scattering (SIDIS) and Drell-Yan lepton pair production in pp collisions. The scale dependence is evaluated by…

High Energy Physics - Phenomenology · Physics 2013-08-14 Peng Sun , Feng Yuan

Single-spin asymmetries in SIDIS induced by anomalous gluon-quark and photon-quark couplings

We calculate the contribution of the non-perturbative Pauli couplings in the quark-photon and quark-gluon vertices to the single-spin asymmetries (SSAs) in semi-inclusive deep inelastic scattering (SIDIS). We describe the nucleon using the…

High Energy Physics - Phenomenology · Physics 2017-12-20 Xu Cao , Nikolai Korchagin , Nikolai Kochelev , Pengming Zhang

Point-by-point extraction of parton distribution functions from SIDIS single transverse-spin asymmetries

We show how some parton distribution functions related to the transverse spin of nucleons can be extracted point by point from combinations of proton and deuteron observables. In particular, we present a determination of the valence and sea…

High Energy Physics - Phenomenology · Physics 2017-02-06 Anna Martin , Franco Bradamante , Vincenzo Barone

Transverse spin and transverse momentum structure of the nucleon from the COMPASS experiment

A selection is presented of recent results from the COMPASS Collaboration on transverse spin and transverse momentum effects in semi-inclusive deeply inelastic scattering (SIDIS) of 160 GeV/c muons off proton and deuteron targets.

High Energy Physics - Experiment · Physics 2014-01-27 F. Bradamante

Tests for Sivers, Boer-Mulders and transversity distributions in difference cross sections in SIDIS

A major experimental program is presently underway to determine the Sivers, Boer-Mulders and transversity distributions, vital for understanding the internal structure of the nucleon. To this end we consider the Sivers, Boer-Mulders and…

High Energy Physics - Phenomenology · Physics 2016-02-17 Ekaterina Christova , Elliot Leader

Azimuthal Correlations in the Structure Functions of polarized Dihadron Semi-Inclusive Deep Inelastic Scattering

Azimuthal correlations in two hadron production in deep inelastic scattering of unpolarized leptons off transversely polarized nucleon are discussed. Specifically, a simple approach for accessing ratios of structure functions corresponding…

High Energy Physics - Phenomenology · Physics 2015-03-25 Aram Kotzinian

Single transverse-spin asymmetries in forward pion production at high energy: incorporating small-x effects in the target

We consider single-inclusive forward pion production in high-energy proton-proton collisions at RHIC energies. A good baseline description of the transverse momentum distributions at high rapidity is obtained within Mueller's dipole…

High Energy Physics - Phenomenology · Physics 2010-03-25 Daniel Boer , Adrian Dumitru , Arata Hayashigaki

Reweighting the quark Sivers function with STAR jet data

The Bayesian reweighting procedure is applied for the first time to a TMD distribution, the quark Sivers function extracted from SIDIS data. By exploiting the recent published single spin asymmetry data for the inclusive jet production in…

High Energy Physics - Phenomenology · Physics 2021-07-29 Carlo Flore , Maria Elena Boglione , Umberto D'Alesio , Josè Osvaldo Gonzalez-Hernandez , Francesco Murgia , Alexei Prokudin

One-Loop Corrections of Single Spin Asymmetries in Semi-Inclusive DIS

We study single spin asymmetries at one-loop accuracy in semi-inclusive DIS with a transversely polarized hadron in the initial state. Two measurable spin observables are predicted in the framework of QCD collinear factorization. One of the…

High Energy Physics - Phenomenology · Physics 2018-04-17 A. P. Chen , J. P. Ma , G. P. Zhang

Single Spin Asymmetries in l p(transv. pol.) --> h X processes and TMD factorisation

Some estimates for the transverse Single Spin Asymmetry, A_N, in the inclusive processes l p(transv. pol.) --> h X, given in a previous paper, are expanded and compared with new experimental data. The predictions are based on the Sivers…

High Energy Physics - Phenomenology · Physics 2014-04-28 M. Anselmino , M. Boglione , U. D'Alesio , S. Melis , F. Murgia , A. Prokudin

Recent COMPASS results on Transverse Spin Asymmetries in SIDIS

After reviewing the most important COMPASS results on transverse spin effects in SIDIS, I will present the recent work we have done on weighted Sivers asymmetries and "transversity induced" $\Lambda$ polarisation. Using the high statistics…

High Energy Physics - Experiment · Physics 2018-02-14 Franco Bradamante

Sivers Differential Cross Section for $\pi+X$ Production via $p^{\uparrow}+p$ Collisions, and the Quark Sivers Function

We recently estimated pion+X production via proton collisions with a polarized proton target to enable the Collins fragmentation function to be determined via future experiments. In the present article we first estimate the Silvers…

High Energy Physics - Phenomenology · Physics 2019-08-09 Leonard S. Kisslinger , Ming X. Liu , Patrick McGaughey