Related papers: Universal scaling behaviour of the transverse pola…

A New Scaling for Single-Spin Asymmetry in Meson and Baryon Hadroproduction

Experimental data on analyzing power for inclusive meson and baryon production in hadron-proton(polarized) collisions have been analyzed. It is found that the existing data can be described by a simple function of collision energy,…

High Energy Physics - Phenomenology · Physics 2014-11-17 Victor V. Abramov

Lambda polarization in unpolarized hadron reactions

The transverse polarization observed in the inclusive production of Lambda hyperons in the high energy collisions of unpolarized hadrons is tackled by considering a new set of spin and kT dependent quark fragmentation functions. Simple…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Anselmino , D. Boer , U. D'Alesio , F. Murgia

Deciphering the universal scaling of particle transverse momentum spectra in heavy-ion collisions

We systematically investigate the scaling properties of the transverse momentum spectra for pions, kaons, and protons in Au+Au collisions at $\sqrt{s_{NN}}$ = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV, as well as in U+U collisions at…

High Energy Physics - Phenomenology · Physics 2026-04-21 Xi-Yao Guo , Hua Zheng , Wenchao Zhang , Li-Lin Zhu , Xing-Quan Liu , Zhi-Guang Tan , Dai-Mei Zhou , Ben-Hao Sa

Scaling behaviours of the $p_{T}$ spectra for identified hadrons in $pp$ collisions

We extend the scaling behaviour observed in the inclusive charged hadron transverse momentum ($p_{T}$) distributions to the $p_{T}$ spectra of pions, kaons and protons produced in proton-proton ($pp$) collisions with center of mass energies…

High Energy Physics - Phenomenology · Physics 2015-12-10 W. C. Zhang

Scaling behavior of charged hadron $p_{T}$ distributions in $pp$ and $p\bar{p}$ collisions

We report on a scaling behaviour in the transverse momentum ($p_{T}$) distributions for charged hadrons produced in proton-proton ($pp$) collisions with different center of mass energies ($\sqrt{s}$ = 0.9, 2.76 and 7 TeV) at the Compact…

High Energy Physics - Phenomenology · Physics 2014-09-11 W. C. Zhang , C. B. Yang

Hyperon global polarization in heavy-ion collisions at NICA energies. Feed-down effects and the role of $\Sigma^0$ hyperons

Global polarization of hyperons induced by the local vorticity of the medium created in heavy-ion collisions at energies 2.3\,GeV$\le\sqrt{s_{NN}}\le$11.5 GeV is calculated in the parton-hadron-string dynamic (PHSD) model. The separation of…

Nuclear Theory · Physics 2025-03-12 V. Voronyuk , E. E. Kolomeitsev , N. S. Tsegelnik

Generalized Z-Scaling for Charged Hadrons and Jets

Generalization of z-scaling observed in the inclusive high-pT charged hadron and jet production is proposed. The scaling function psi(z) describing both charged hadrons and jets produced in proton-(anti)proton collisions for various…

High Energy Physics - Phenomenology · Physics 2011-03-23 I. Zborovsky , M. Tokarev

Prospects of transverse $\Lambda$ and $\bar{\Lambda}$ polarization measurements at LHCb

Transverse $\Lambda$ polarization observed over four decades ago contradicted expectations from early leading-order perturbative QCD calculations. Measurements of $\Lambda$ polarization from unpolarized $pp$ and $p$A collisions have been…

High Energy Physics - Experiment · Physics 2023-07-18 Cynthia Nunez

Generalized z-scaling in proton-proton collisions at high energies

New generalization of z-scaling in inclusive particle production is proposed. The scaling variable z is fractal measure which depends on kinematical characteristics of the underlying sub-process expressed in terms of the momentum fractions…

High Energy Physics - Phenomenology · Physics 2008-11-26 I. Zborovsky , M. Tokarev

Measurement of transverse polarization of $\Lambda$ and $\bar{\Lambda}$ hyperons inside jets in $pp$ collisions at $\sqrt{s}=200$ GeV

A surprisingly large transverse polarization of $\Lambda$ hyperons in unpolarized hadron-nucleon/nucleus collisions has been observed for 50 years, and the origin of this polarization remains an important open question. Recently,…

High Energy Physics - Experiment · Physics 2026-05-14 STAR Collaboration , B. E. Aboona , J. Adam , G. Agakishiev , I. Aggarwal , M. M. Aggarwal , Z. Ahammed , A. Aitbayev , I. Alekseev , E. Alpatov , A. K. Alshammri , A. Aparin , S. Aslam , J. Atchison , G. S. Averichev , V. Bairathi , X. Bao , P. Barik , K. Barish , S. Behera , P. Bhaga t , A. Bhasin , S. Bhatta , I. G. Bordyuzhin , J. D. Brandenburg , A. V. Brandin , C. Broodo , X. Z. Cai , H. Caines , M. Calderón de la Barca Sánchez , D. Cebra , J. Ceska , I. Chakaberia , Y. S. Chang , Z. Chang , A. Chatterjee , D. Chen , J. H. Chen , L. Chen , Q. Chen , W. Chen , Z. Chen , J. Cheng , Y. Cheng , W. Christie , X. Chu , S. Corey , H. J. Crawford , G. Dale-Gau , A. Das , D. De Souza Lemos , T. G. Dedovich , I. M. Deppner , A. A. Derevschikov , A. Deshpande , A. Dhamija , A. Dimri , P. Dixit , X. Dong , J. L. Drachenberg , E. Duckworth , J. C. Dunlop , Y. S. El-Feky , J. Engelage , G. Eppley , S. Esumi , O. Evdokimov , O. Eyser , B. Fan , Y. Fang , R. Fatemi , S. Fazio , H. Feng , Y. Feng , E. Finch , Y. Fisyak , F. A. Flor , B. Fu , C. Fu , T. Fu , T. Gao , Y. Gao , G. Garcia , F. Geurts , A. Gibson , A. Giri , K. Gopal , M. Gor don , X. Gou , D. Grosnick , A. Gu , J. Gu , A. Gupta , A. Hamed , R. J. Hamilton , J. Han , X. Han , M. D. Harasty , J. W. Harris , H. Harrison-Smith , L. B. Havener , X. H. He , Y. He , C. Hu , Q. Hu , Y. Hu , H. Huang , H. Z. Huang , S. L. Huang , T. Huang , Y. Huang , Y. Huang , Y. Huan g , M. Isshiki , W. W. Jacobs , A. Jalotra , C. Jena , Y. Ji , J. Jia , X. Jiang , C. Jin , Y. Jin , N. Jindal , X. Ju , E. G. Judd , S. Kabana , D. Kalinkin , J. Kang , K. Kang , A. R. Kanuganti , D. Kapukchyan , K. Kauder , D. Keane , A. Kechechyan , M. Kesler , A. Khanal , A. Khanal , J. Kim , A. Kiselev , A. G. Knospe , L. Kochenda , Y. Kong , A. A. Korobitsin , B. Korodi , A. Yu. Kraeva , P. Kravtsov , L. Kumar , M. C. Labonte , R. Lacey , J. M. Landgraf , C. Larson , A. Lebedev , R. Lednicky , J. H. Lee , Y. H. Leung , C. Li , D. Li , H-S. Li , H. Li , H. Li , H. Li , W. Li , X. Li , X. Li , Y. Li , Z. Li , Z. Li , X. Liang , T. Lin , Y. Lin , C. Liu , G. Liu , H. Liu , L. Liu , L. Liu , Z. Liu , Z. Liu , T. Ljubicic , O. Lomicky , E. M. Loyd , T. Lu , J. Luo , X. F. Luo , V. B. Luong , L. Ma , R. Ma , Y. G. Ma , N. Magdy , B. Maghoul , R. Manikandhan , O. M atonoha , K. Menduli , K. Mi , N. G. Minaev , B. Mohanty , B. Mondal , M. M. Mondal , I. Mooney , D. A. Morozov , M. I. Nagy , C. J. Naim , A. S. Nain , J. D. Nam , M. Nasim , H. Nasrulloh , E. Nedorezov , J. M. Nelson , M. Nie , G. Nigmatkulov , T. Niida , L. V. Nogach , T. Nonaka , G. Odyniec , A. Ogawa , S. Oh , V. A. Okorokov , K. Okubo , B. S. Page , M. Pal , S. Pal , A. Pandav , A. Panday , A. K. Pandey , Y. Panebratsev , T. Pani , P. Parfenov , A. Paul , S. Paul , C. Perkins , S. Ping , I. D. Ponce Pinto , M. Posik , E. Pottebaum , A. Povarov , S. Prodhan , T. L. Protzman , N. K. Pruthi , J. Putschke , Y. Qi , Z. Qin , H. Qiu , S. K. Radhakrishnan , A. Rana , R. L. Ray , C. W. Robertson , O. V. Rogachevsky , M. A. Rosales Aguilar , D. Roy , L. Ruan , A. K. Sahoo , N. R. Sahoo , H. Sako , S. Salur , S. S. Sambyal , E. Samigullin , D. T. Samuel , J. K. Sandhu , S. Sato , B. C. Schaefer , N. Schmitz , J. Seger , R. Seto , P. Seyboth , N. Shah , E. Shahaliev , P. V. Shanmuganathan , T. Shao , M. Sharma , N. Sharma , R. Sharma , S. R. Sharma , A. I. Sheikh , D. Shen , D. Y. Shen , K. Shen , S. Shi , Y. Shi , Shilpa , E. Shulga , F. S , J. Singh , S. Singha , P. Sinha , M. J. Skoby , Y. Söhngen , Y. Song , T. D. S. Stanislaus , M. Strikhanov , Y. Su , X. Sun , Y. Sun , B. Surrow , D. N. Svirida , Z. W. Sweger , A. C. Tamis , A. H. Tang , Z. Tang , A. Taranenko , T. Tarnowsky , J. H. Thomas , A. Timofeev , D. Tl usty , M. V. Tokarev , D. Torres-Valladares , S. Trentalange , O. D. Tsai , C. Y. Tsang , Z. Tu , J. E. Tyler , T. Ullrich , D. G. Underwood , G. Van Buren , A. N. Vasiliev , F. Videbæk , S. Vokal , S. A. Voloshin , F. Wang , G. Wang , G. Wang , J. S. Wang , J. Wang , K. Wang , X. W ang , Y. Wang , Y. Wang , Y. Wang , Z. Wang , Z. Wang , Z. Wang , J. C. Webb , P. C. Weidenkaff , G. D. Westfall , H. Wieman , G. Wilks , S. W. Wissink , C. P. Wong , J. Wu , X. Wu , X. Wu , X. Wu , B. Xi , Y. Xiao , Z. G. Xiao , G. Xie , W. Xie , H. Xu , N. Xu , Q. H. Xu , X. Xu , Y. Xu , Y. Xu , Y. Xu , Y. Xu , Z. Xu , Z. Xu , G. Yan , Z. Yan , C. Yang , Q. Yang , S. Yang , Y. Yang , Z. Ye , Z. Ye , L. Yi , Y. Yu , W. Yuan , W. Zha , C. Zhang , D. Zhang , J. Zhang , K. Zhang , L. Zhang , S. Zhang , W. Zhang , W. Zhang , X. Zhang , Y. Zhang , Y. Zhang , Y. Zhang , Y. Zhang , Z. Zhan g , Z. Zhang , F. Zhao , J. Zhao , S. Zhou , Y. Zhou , C. Zhu , X. Zhu , M. Zurek , M. Zyzak

Transverse Lambda polarization at high energy colliders

Measurements of transverse polarization of Lambda hyperons produced in high energy pp collisions may help to address several open issues about Lambda production and polarization mechanisms, such as the amount of SU(3) breaking, the…

High Energy Physics - Phenomenology · Physics 2010-11-19 Daniel Boer

Uncovering the Scaling Laws of Hard Exclusive Hadronic Processes in a Comprehensive Endpoint Model

We show that an endpoint overlap model can explain the scaling laws observed in exclusive hadronic reactions at large momentum transfer. The model assumes one of the valence quarks carries most of the hadron momentum. Hadron form factors…

High Energy Physics - Phenomenology · Physics 2015-06-19 Sumeet Dagaonkar , Pankaj Jain , John P. Ralston

Polarized Hyperons from pA Scattering in the Gluon Saturation Regime

We study the production of transversely polarized Lambda hyperons in high-energy collisions of protons with large nuclei. The large gluon density of the target at saturation provides an intrinsic semi-hard scale which should naturally allow…

High Energy Physics - Phenomenology · Physics 2009-11-07 Daniel Boer , Adrian Dumitru

Hyperon Polarization in Inclusive Hadronic Production

A QCD formula for the polarization in the large-p_T \Lambda hyperon production in the unpolarized nucleon-nucleon collision at large x_F is derived. We focus on the mechanism in which the chiral-odd spin-independent twist-3 quark…

High Energy Physics - Phenomenology · Physics 2009-10-31 Y. Kanazawa , Yuji Koike

Hyperon global polarization in isobar Ru+Ru and Zr+Zr collisions at $\sqrt{s_{NN}}$ = 200 GeV

The polarization of Lambda, Anti-Lambda, Xi, and Anti-Xi hyperons along the angular momentum of the system has been measured in isobar collisions of Ru+Ru and Zr+Zr at $\sqrt{s_{NN}}$ = 200 GeV with the STAR detector at RHIC. The…

Nuclear Experiment · Physics 2025-05-14 The STAR Collaboration

Hyperon Production in Bi+Bi Collisions at NICA and Angular Dependence of Hyperon Spin Polarization

The strange baryon production in Bi+Bi collisions at $\sqrt{s_{NN}}=9.0$\,GeV is studied using the PHSD transport model. Hyperon and anti-hyperon yields, transverse momentum spectra, and rapidity spectra are calculated, their centrality…

Nuclear Theory · Physics 2024-11-15 Nikita S. Tsegelnik , Vadym Voronyuk , Evgeni E. Kolomeitsev

Global $\Lambda$ hyperon polarization in low-energy heavy ion collisions -- a scenario without vorticity

Since its discovery, global polarization of the $\Lambda$ hyperon in heavy-ion collisions has been firmly established and is widely attributed to the large vorticity generated in the rotating quark-gluon plasma. In contrast, nearly fifty…

High Energy Physics - Phenomenology · Physics 2026-03-23 Feng Liu , Zhoudunming Tu

Global polarization of $\Lambda$ hyperons in Au+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV

Global polarization of $\Lambda$ hyperons has been measured to be of the order of a few tenths of a percent in Au+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV, with no significant difference between $\Lambda$ and $\bar{\Lambda}$. These new…

Nuclear Experiment · Physics 2018-08-09 J. Adam , L. Adamczyk , J. R. Adams , J. K. Adkins , G. Agakishiev , M. M. Aggarwal , Z. Ahammed , N. N. Ajitanand , I. Alekseev , D. M. Anderson , R. Aoyama , A. Aparin , D. Arkhipkin , E. C. Aschenauer , M. U. Ashraf , F. Atetalla , A. Attri , G. S. Averichev , X. Bai , V. Bairathi , K. Barish , A. J. Bassill , A. Behera , R. Bellwied , A. Bhasin , A. K. Bhati , J. Bielcik , J. Bielcikova , L. C. Bland , I. G. Bordyuzhin , J. D. Brandenburg , A. V. Brandin , D. Brown , J. Bryslawskyj , I. Bunzarov , J. Butterworth , H. Caines , M. Calderón~de~la~Barca~Sánchez , J. M. Campbell , D. Cebra , I. Chakaberia , P. Chaloupka , F-H. Chang , Z. Chang , N. Chankova-Bunzarova , A. Chatterjee , S. Chattopadhyay , J. H. Chen , X. Chen , X. Chen , J. Cheng , M. Cherney , W. Christie , G. Contin , H. J. Crawford , S. Das , T. G. Dedovich , I. M. Deppner , A. A. Derevschikov , L. Didenko , C. Dilks , X. Dong , J. L. Drachenberg , J. C. Dunlop , L. G. Efimov , N. Elsey , J. Engelage , G. Eppley , R. Esha , S. Esumi , O. Evdokimov , J. Ewigleben , O. Eyser , R. Fatemi , S. Fazio , P. Federic , P. Federicova , J. Fedorisin , P. Filip , E. Finch , Y. Fisyak , C. E. Flores , L. Fulek , C. A. Gagliardi , T. Galatyuk , F. Geurts , A. Gibson , D. Grosnick , D. S. Gunarathne , Y. Guo , A. Gupta , W. Guryn , A. I. Hamad , A. Hamed , A. Harlenderova , J. W. Harris , L. He , S. Heppelmann , S. Heppelmann , N. Herrmann , A. Hirsch , L. Holub , S. Horvat , X. Huang , B. Huang , S. L. Huang , H. Z. Huang , T. Huang , T. J. Humanic , P. Huo , G. Igo , W. W. Jacobs , A. Jentsch , J. Jia , K. Jiang , S. Jowzaee , E. G. Judd , S. Kabana , D. Kalinkin , K. Kang , D. Kapukchyan , K. Kauder , H. W. Ke , D. Keane , A. Kechechyan , D. P. Kikoła , C. Kim , T. A. Kinghorn , I. Kisel , A. Kisiel , L. Kochenda , L. K. Kosarzewski , A. F. Kraishan , L. Kramarik , L. Krauth , P. Kravtsov , K. Krueger , N. Kulathunga , S. Kumar , L. Kumar , J. Kvapil , J. H. Kwasizur , R. Lacey , J. M. Landgraf , J. Lauret , A. Lebedev , R. Lednicky , J. H. Lee , X. Li , C. Li , W. Li , Y. Li , Y. Liang , J. Lidrych , T. Lin , A. Lipiec , M. A. Lisa , F. Liu , P. Liu , H. Liu , Y. Liu , T. Ljubicic , W. J. Llope , M. Lomnitz , R. S. Longacre , X. Luo , S. Luo , G. L. Ma , Y. G. Ma , L. Ma , R. Ma , N. Magdy , R. Majka , D. Mallick , S. Margetis , C. Markert , H. S. Matis , O. Matonoha , D. Mayes , J. A. Mazer , K. Meehan , J. C. Mei , N. G. Minaev , S. Mioduszewski , D. Mishra , B. Mohanty , M. M. Mondal , I. Mooney , D. A. Morozov , Md. Nasim , J. D. Negrete , J. M. Nelson , D. B. Nemes , M. Nie , G. Nigmatkulov , T. Niida , L. V. Nogach , T. Nonaka , S. B. Nurushev , G. Odyniec , A. Ogawa , K. Oh , S. Oh , V. A. Okorokov , D. Olvitt , B. S. Page , R. Pak , Y. Panebratsev , B. Pawlik , H. Pei , C. Perkins , J. Pluta , J. Porter , M. Posik , N. K. Pruthi , M. Przybycien , J. Putschke , A. Quintero , S. K. Radhakrishnan , S. Ramachandran , R. L. Ray , R. Reed , H. G. Ritter , J. B. Roberts , O. V. Rogachevskiy , J. L. Romero , L. Ruan , J. Rusnak , O. Rusnakova , N. R. Sahoo , P. K. Sahu , S. Salur , J. Sandweiss , J. Schambach , A. M. Schmah , W. B. Schmidke , N. Schmitz , B. R. Schweid , F. Seck , J. Seger , M. Sergeeva , R. Seto , P. Seyboth , N. Shah , E. Shahaliev , P. V. Shanmuganathan , M. Shao , W. Q. Shen , F. Shen , S. S. Shi , Q. Y. Shou , E. P. Sichtermann , S. Siejka , R. Sikora , M. Simko , S. Singha , N. Smirnov , D. Smirnov , W. Solyst , P. Sorensen , H. M. Spinka , B. Srivastava , T. D. S. Stanislaus , D. J. Stewart , M. Strikhanov , B. Stringfellow , A. A. P. Suaide , T. Sugiura , M. Sumbera , B. Summa , Y. Sun , X. Sun , X. M. Sun , B. Surrow , D. N. Svirida , P. Szymanski , Z. Tang , A. H. Tang , A. Taranenko , T. Tarnowsky , J. H. Thomas , A. R. Timmins , D. Tlusty , T. Todoroki , M. Tokarev , C. A. Tomkiel , S. Trentalange , R. E. Tribble , P. Tribedy , S. K. Tripathy , O. D. Tsai , B. Tu , T. Ullrich , D. G. Underwood , I. Upsal , G. Van Buren , J. Vanek , A. N. Vasiliev , I. Vassiliev , F. Videbæk , S. Vokal , S. A. Voloshin , A. Vossen , G. Wang , Y. Wang , F. Wang , Y. Wang , J. C. Webb , L. Wen , G. D. Westfall , H. Wieman , S. W. Wissink , R. Witt , Y. Wu , Z. G. Xiao , G. Xie , W. Xie , Q. H. Xu , Z. Xu , J. Xu , Y. F. Xu , N. Xu , S. Yang , C. Yang , Q. Yang , Y. Yang , Z. Ye , Z. Ye , L. Yi , K. Yip , I. -K. Yoo , N. Yu , H. Zbroszczyk , W. Zha , Z. Zhang , L. Zhang , Y. Zhang , X. P. Zhang , J. Zhang , S. Zhang , S. Zhang , J. Zhang , J. Zhao , C. Zhong , C. Zhou , L. Zhou , Z. Zhu , X. Zhu , M. Zyzak

Scaling behavior of transverse momenta distributions in hadronic and nuclear collisions

It has been recently noticed that transverse momenta ($p_T$) distributions observed in high energy production processes exhibit remarkably universal scaling behavior. This is seen when they are in some suitable variable, replacing the usual…

High Energy Physics - Phenomenology · Physics 2015-04-03 M. Rybczynski , Z. Wlodarczyk , G. Wilk

Hyperon polarization in different inclusive production processes in unpolarized high energy hadron-hadron collisions

We apply the picture proposed in a previous Letter, which relates the hyperon polarization in unpolarized hadron-hadron collisions to the left-right asymmetry in singly polarized reactions, to the production of different hyperons in…

High Energy Physics - Phenomenology · Physics 2007-05-23 Hui Dong , Zuo-tang Liang