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Related papers: Sivers Tomography from Charge and Angle Only

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We study observables in a conformal field theory which are very closely related to the ones used to describe hadronic events at colliders. We focus on the correlation functions of the energies deposited on calorimeters placed at a large…

High Energy Physics - Theory · Physics 2009-10-16 Diego M. Hofman , Juan Maldacena

The STAR collaboration reported precision measurements on the transverse single spin asymmetries for the production of forward $\pi^0$ mesons from polarized proton collisions at $\sqrt{s}=$ 200 GeV. To disentangle contributions to measured…

High Energy Physics - Experiment · Physics 2022-03-02 N. Poljak

A complete, fundamental understanding of the proton must include knowledge of the underlying spin structure. The transversity distribution, $h_1\left(x\right)$, which describes the transverse spin structure of quarks inside of a…

High Energy Physics - Experiment · Physics 2019-07-29 J. Kevin Adkins

We calculate the Sivers function in semi-inclusive deep inelastic scattering (SIDIS) and in the Drell-Yan process (DY) by employing the quasi-classical Glauber-Mueller/ McLerran-Venugopalan approximation. Modeling the hadron as a large…

High Energy Physics - Phenomenology · Physics 2014-04-02 Yuri V. Kovchegov , Matthew D. Sievert

We calculate proton elastic and inelastic scatterings with a microscopic coupled channel (MCC) calculation. The localized diagonal and coupling potentials including the spin-orbit part are obtained by folding a complex $G$-matrix effective…

Nuclear Theory · Physics 2021-04-07 T. Furumoto , M. Takashina

The PHENIX experiment has measured transverse single spin asymmetry of J/$\Psi$ in polarized p+p collisions at forward rapidity at $\sqrt{s}=200$ GeV. The data were collected from year 2006 run of RHIC with average beam polarization of 56%.…

High Energy Physics - Experiment · Physics 2008-11-26 Han Liu

Azimuthal single-spin asymmetries of lepto-produced pions and charged kaons were measured on a transversely polarized hydrogen target. Evidence for a naive-T-odd, transverse-momentum-dependent parton distribution function is deduced from…

High Energy Physics - Experiment · Physics 2012-08-27 The HERMES Collaboration

We present a recent calculation of the single spin asymmetry in inclusive photoproducton of $J/\psi$ at the future EIC, that can be used to probe the gluon Sivers function.

High Energy Physics - Phenomenology · Physics 2019-09-24 Raj Kishore , Asmita Mukherjee , Sangem Rajesh

We describe an on-shell, amplitudes-based approach to incorporating radiation absorption effects in the post-Minkowskian scattering of generic, compact, spinning bodies. Classical spinning observables are recovered by extrapolating to large…

High Energy Physics - Theory · Physics 2026-01-05 Juan Pablo Gatica , Callum R. T. Jones

In high-energy heavy-ion collisions, the correlations between the emitted particles can be used as a probe to gain insight into the charge creation mechanisms. In this Letter, we report the first results of such studies using the electric…

Nuclear Experiment · Physics 2014-09-09 ALICE Collaboration

We apply the transverse momentum dependent factorization formalism to investigate the transverse single spin dependent Collins asymmetry with a $\sin(\phi_h+\phi_s)$ modulation in the semi-inclusive production of Kaon meson in deep…

High Energy Physics - Phenomenology · Physics 2020-08-26 Shi-Chen Xue , Xiaoyu Wang , De-Min Li , Zhun Lu

Color charge correlators provide fundamental information about the proton structure. In this Letter, we evaluate numerically two-point color charge correlations in a proton on the light cone including the next-to-leading order corrections…

High Energy Physics - Phenomenology · Physics 2021-08-19 Adrian Dumitru , Heikki Mäntysaari , Risto Paatelainen

In JHEP 11 (2022) 169, we performed the first complete computation of the back-to-back inclusive di-jet cross-section in Deeply Inelastic Scattering (DIS) at small $x_{\rm Bj}$ to next-to-leading order (NLO) in the Color Glass Condensate…

High Energy Physics - Phenomenology · Physics 2023-05-11 Paul Caucal , Farid Salazar , Björn Schenke , Tomasz Stebel , Raju Venugopalan

The $k_\perp$-moment of a quark's Sivers function is known to be related to the corresponding twist-three quark-gluon correlation function $T_{q,F}(x, x)$. The two functions have been extracted from data for single-spin asymmetries in…

High Energy Physics - Phenomenology · Physics 2011-05-12 Zhong-Bo Kang , Jian-Wei Qiu , Werner Vogelsang , Feng Yuan

We discuss the single transverse-spin asymmetry (SSA) to be observed in the $D$-meson production with large transverse-momentum in semi-inclusive deep inelastic scattering, $e p^\uparrow \rightarrow e D X$. This contribution is embodied as…

High Energy Physics - Phenomenology · Physics 2013-05-30 Hiroo Beppu , Yuji Koike , Kazuhiro Tanaka , Shinsuke Yoshida

We analyze the transverse single-spin asymmetry in direct photon production from proton-proton collisions, denoted $A_N^\gamma$, within collinear twist-3 factorization. We provide a calculation of the contribution due to quark-gluon-quark…

High Energy Physics - Phenomenology · Physics 2015-06-23 K. Kanazawa , Y. Koike , A. Metz , D. Pitonyak

Measurements of beam single spin asymmetries in semi-inclusive deep inelastic electron scattering (SIDIS) with positively charged kaons off protons have been performed with 10.6 and 10.2 GeV incident electron beams using the CLAS12…

High Energy Physics - Experiment · Physics 2025-10-17 A. Kripko , S. Diehl , K. Joo , P. Achenbach , J. S. Alvarado , M. Amaryan , W. R. Armstrong , H. Atac , H. Avakian , L. Baashen , N. A. Baltzell , L. Barion , M. Bashkanov , F. Benmokhtar , A. Bianconi , A. S. Biselli , M. Bondi , F. Bossù , S. Boiarinov , K. -T. Brinkmann , W. J. Briscoe , W. K. Brooks , T. Cao , R. Capobianco , D. S. Carman , J. C. Carvajal , A. Celentano , P. Chatagnon , G. Ciullo , P. L. Cole , M. Contalbrigo , V. Crede , A. D'Angelo , N. Dashyan , R. De Vita , M. Defurne , A. Deur , C. Dilks , C. Djalali , R. Dupre , H. Egiyan , A. El Alaoui , L. El Fassi , L. Elouadrhiri , S. Fegan , I. P. Fernando , A. Filippi , G. Gavalian , D. I. Glazier , R. W. Gothe , Y. Gotra , K. Hafidi , H. Hakobyan , M. Hattawy , F. Hauenstein , T. B. Hayward , D. Heddle , A. Hobart , M. Holtrop , Y. Ilieva , D. G. Ireland , E. L. Isupov , H. Jiang , H. S. Jo , T. Kageya , A. Kim , W. Kim , V. Klimenko , V. Kubarovsky , S. E. Kuhn , L. Lanza , P. Lenisa , X. Li , Z. Lu , I . J . D. MacGregor , D. Marchand , D. Martiryan , V. Mascagna , D. Matamoros , M. Maynes , B. McKinnon , R. G. Milner , T. Mineeva , M. Mirazita , V. Mokeev , C. Munoz Camacho , P. Nadel-Turonski , T. Nagorna , K. Neupane , D. Nguyen , S. Niccolai , G. Niculescu , M. Osipenko , M. Ouillon , P. Pandey , L. L. Pappalardo , R. Paremuzyan , E. Pasyuk , S. J. Paul , N. Pilleux , S. Polcher Rafael , J. Poudel , J. W. Price , Y. Prok , T. Reed , M. Ripani , J. Ritman , C. D. Roberts , P. Rossi , A. A. Rusova , S. Schadmand , A. Schmidt , Y. G. Sharabian , E. V. Shirokov , S. Shrestha , U. Shrestha , D. Sokhan , N. Sparveris , M. Spreafico , I. I. Strakovsky , S. Strauch , R. Tyson , M. Ungaro , S. Vallarino , L. Venturelli , T. Vittorini , H. Voskanyan , A. Vossen , E. Voutier , Y. Wang , D. P. Watts , U. Weerasinghe , X. Wei , M. H. Wood , L. Xu , S. -S. Xu , N. Zachariou , V. Ziegler , M. Zurek

We study the Sivers effect in the transverse single spin asymmetries (SSA) for pion and kaon production in semi-inclusive deep inelastic scattering (SIDIS) processes. We perform a fit of A^sin(phi_h-phi_S)_UT which, by including recent high…

High Energy Physics - Phenomenology · Physics 2009-02-19 M. Anselmino , M. Boglione , U. D'Alesio , A. Kotzinian , S. Melis , F. Murgia , A. Prokudin , C. Turk

The ability to observe rotational dynamics and measure underlying torques is a crucial component in understanding the function and mechanics of nanoscale systems. Yet, direct observation of rotational dynamics at the single-molecule level…

Identified hadron production is essential for the study of nucleon structure and QCD hadronization at high energies. We present the first calculation of unpolarized semi-inclusive deep-inelastic scattering (SIDIS) at…

High Energy Physics - Phenomenology · Physics 2026-04-01 Liang Dong , Shen Fang , Jun Gao , Hai Tao Li , Ding Yu Shao , Hua Xing Zhu , Yu Jiao Zhu