학술논문
Results on elastic cross sections in proton–proton collisions at s=510 GeV with the STAR detector at RHIC
Document Type
article
Author
M.I. Abdulhamid; B.E. Aboona; J. Adam; L. Adamczyk; J.R. Adams; I. Aggarwal; M.M. Aggarwal; Z. Ahammed; E.C. Aschenauer; S. Aslam; J. Atchison; V. Bairathi; J.G. Ball Cap; K. Barish; R. Bellwied; P. Bhagat; A. Bhasin; S. Bhatta; S.R. Bhosale; J. Bielcik; J. Bielcikova; J.D. Brandenburg; C. Broodo; X.Z. Cai; H. Caines; M. Calderón de la Barca Sánchez; D. Cebra; J. Ceska; I. Chakaberia; P. Chaloupka; B.K. Chan; Z. Chang; A. Chatterjee; D. Chen; J. Chen; J.H. Chen; Z. Chen; J. Cheng; Y. Cheng; S. Choudhury; W. Christie; X. Chu; H.J. Crawford; M. Csanád; G. Dale-Gau; A. Das; I.M. Deppner; A. Dhamija; P. Dixit; X. Dong; J.L. Drachenberg; E. Duckworth; J.C. Dunlop; J. Engelage; G. Eppley; S. Esumi; O. Evdokimov; O. Eyser; R. Fatemi; S. Fazio; C.J. Feng; Y. Feng; E. Finch; Y. Fisyak; F.A. Flor; C. Fu; C.A. Gagliardi; T. Galatyuk; T. Gao; F. Geurts; N. Ghimire; A. Gibson; K. Gopal; X. Gou; D. Grosnick; A. Gupta; W. Guryn; A. Hamed; Y. Han; S. Harabasz; M.D. Harasty; J.W. Harris; H. Harrison-Smith; W. He; X.H. He; Y. He; N. Herrmann; L. Holub; C. Hu; Q. Hu; Y. Hu; H. Huang; H.Z. Huang; S.L. Huang; T. Huang; X. Huang; Y. Huang; T.J. Humanic; M. Isshiki; W.W. Jacobs; A. Jalotra; C. Jena; A. Jentsch; Y. Ji; J. Jia; C. Jin; X. Ju; E.G. Judd; S. Kabana; D. Kalinkin; K. Kang; D. Kapukchyan; K. Kauder; D. Keane; A. Khanal; Y.V. Khyzhniak; D.P. Kikoła; D. Kincses; I. Kisel; A. Kiselev; A.G. Knospe; H.S. Ko; L.K. Kosarzewski; L. Kumar; M.C. Labonte; R. Lacey; J.M. Landgraf; J. Lauret; A. Lebedev; J.H. Lee; Y.H. Leung; N. Lewis; C. Li; D. Li; H-S. Li; H. Li; W. Li; X. Li; Y. Li; Z. Li; X. Liang; Y. Liang; R. Licenik; T. Lin; Y. Lin; M.A. Lisa; C. Liu; G. Liu; H. Liu; L. Liu; T. Liu; X. Liu; Y. Liu; Z. Liu; T. Ljubicic; O. Lomicky; R.S. Longacre; E.M. Loyd; T. Lu; J. Luo; X.F. Luo; L. Ma; R. Ma; Y.G. Ma; N. Magdy; D. Mallick; R. Manikandhan; S. Margetis; C. Markert; H.S. Matis; G. McNamara; O. Mezhanska; K. Mi; S. Mioduszewski; B. Mohanty; M.M. Mondal; I. Mooney; M.I. Nagy; A.S. Nain; J.D. Nam; M. Nasim; D. Neff; J.M. Nelson; D.B. Nemes; M. Nie; G. Nigmatkulov; T. Niida; T. Nonaka; G. Odyniec; A. Ogawa; S. Oh; K. Okubo; B.S. Page; R. Pak; S. Pal; A. Pandav; T. Pani; A. Paul; B. Pawlik; D. Pawlowska; C. Perkins; J. Pluta; B.R. Pokhrel; M. Posik; T. Protzman; V. Prozorova; N.K. Pruthi; M. Przybycien; J. Putschke; Z. Qin; H. Qiu; C. Racz; S.K. Radhakrishnan; A. Rana; R.L. Ray; R. Reed; H.G. Ritter; C.W. Robertson; M. Robotkova; M.A. Rosales Aguilar; D. Roy; P. Roy Chowdhury; L. Ruan; A.K. Sahoo; N.R. Sahoo; H. Sako; S. Salur; S. Sato; B.C. Schaefer; W.B. Schmidke; N. Schmitz; F-J. Seck; J. Seger; R. Seto; P. Seyboth; N. Shah; 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.S. Shi; Y. Shi; Q.Y. Shou; F. Si; J. Singh; S. Singha; P. Sinha; M.J. Skoby; N. Smirnov; Y. Söhngen; Y. Song; B. Srivastava; T.D.S. Stanislaus; M. Stefaniak; D.J. Stewart; B. Stringfellow; Y. Su; A.A.P. Suaide; M. Sumbera; C. Sun; X. Sun; Y. Sun; B. Surrow; Z.W. Sweger; A.C. Tamis; A.H. Tang; Z. Tang; T. Tarnowsky; J.H. Thomas; A.R. Timmins; D. Tlusty; T. Todoroki; S. Trentalange; P. Tribedy; S.K. Tripathy; T. Truhlar; B.A. Trzeciak; O.D. Tsai; C.Y. Tsang; Z. Tu; J. Tyler; T. Ullrich; D.G. Underwood; I. Upsal; G. Van Buren; J. Vanek; I. Vassiliev; V. Verkest; F. Videbæk; S.A. Voloshin; F. Wang; G. Wang; J.S. Wang; J. Wang; K. Wang; X. Wang; Y. Wang; Z. Wang; J.C. Webb; P.C. Weidenkaff; G.D. Westfall; D. Wielanek; H. Wieman; G. Wilks; S.W. Wissink; R. Witt; J. Wu; X. Wu; B. Xi; Z.G. Xiao; G. Xie; W. Xie; H. Xu; N. Xu; Q.H. Xu; Y. Xu; Z. Xu; G. Yan; Z. Yan; C. Yang; Q. Yang; S. Yang; Y. Yang; Z. Ye; L. Yi; K. Yip; Y. Yu; H. Zbroszczyk; W. Zha; C. Zhang; D. Zhang; J. Zhang; S. Zhang; W. Zhang; X. Zhang; Y. Zhang; Z.J. Zhang; Z. Zhang; F. Zhao; J. Zhao; M. Zhao; J. Zhou; S. Zhou; Y. Zhou; X. Zhu; M. Zurek; M. Zyzak
Source
Physics Letters B, Vol 852, Iss , Pp 138601- (2024)
Subject
Language
English
ISSN
0370-2693
Abstract
We report results on an elastic cross section measurement in proton–proton collisions at a center-of-mass energy s=510 GeV, obtained with the Roman Pot setup of the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The elastic differential cross section is measured in the four-momentum transfer squared range 0.23≤−t≤0.67 GeV2. This is the only measurement of the proton-proton elastic cross section in this t range for collision energies above the Intersecting Storage Rings (ISR) and below the Large Hadron Collider (LHC) colliders. We find that a constant slope B does not fit the data in the aforementioned t range, and we obtain a much better fit using a second-order polynomial for B(t). This is the first measurement below the LHC energies for which the non-constant behavior B(t) is observed. The t dependence of B is also determined using six subintervals of t in the STAR measured t range, and is in good agreement with the phenomenological models. The measured elastic differential cross section dσ/dt agrees well with the results obtained at s=540 GeV for proton–antiproton collisions by the UA4 experiment. We also determine that the integrated elastic cross section within the STAR t-range is σelfid=462.1±0.9(stat.)±1.1(syst.)±11.6(scale) μb.