Related papers: Results from PP2PP Experiment at RHIC

First Measurement of A_N at sqrt(s)=200 GeV in Polarized Proton-Proton Elastic Scattering at RHIC

We report on the first measurement of the single spin analyzing power (A_N) at sqrt(s)=200GeV, obtained by the pp2pp experiment using polarized proton beams at the Relativistic Heavy Ion Collider (RHIC). Data points were measured in the…

Nuclear Experiment · Physics 2008-12-18 S. Bueltmann

Double Spin Asymmetries A_NN and A_SS at sqrt{s}=200 GeV in Polarized Proton-Proton Elastic Scattering at RHIC

We present the first measurements of the double spin asymmetries A_NN and A_SS at sqrt{s}=200 GeV, obtained by the pp2pp experiment using polarized proton beams at the Relativistic Heavy Ion Collider (RHIC). The data were collected in the…

Nuclear Experiment · Physics 2008-11-26 pp2pp Collaboration , S. Bultmann , I. H. Chiang , R. E. Chrien , A. Drees , R. L. Gill , W. Guryn , J. Landgraf , T. A. Ljubicic , D. Lynn , C. Pearson , P. Pile , A. Rusek , M. Sakitt , S. Tepikian , K. Yip , J. Chwastowski , B. Pawlik , M. Haguenauer , A. A. Bogdanov , S. B. Nurushev , M. F. Runtzo , M. N. Strikhanov , I. G. Alekseev , V. P. Kanavets , L. I. Koroleva , B. V. Morozov , D. N. Svirida , A. Khodinov , M. Rijssenbeek , L. Whitehead , S. Yeung , K. De , N. Guler , J. Li , N. Ozturk , A. Sandacz

The PP2PP Experiment at RHIC

The PP2PP experiment is devoted to the proton-proton elastic scattering measurement at the Relativistic Heavy Ion Collider at the centre-of-mass energies between 50 and 500 GeV and the four-momentum transfer $0.0004 \leq |t| \leq 1.3$…

High Energy Physics - Experiment · Physics 2011-08-17 J. Chwastowski

Measurement of the Analyzing Power $A_N$ in $pp$ Elastic Scattering in the CNI Region with a Polarized Atomic Hydrogen Gas Jet Target

A precise measurement of the analyzing power $A_N$ in proton-proton elastic scattering in the region of 4-momentum transfer squared $0.001 < |t| < 0.032 ({\rm GeV}/c)^2$ has been performed using a polarized atomic hydrogen gas jet target…

High Energy Physics - Experiment · Physics 2007-05-23 H. Okada , I. G. Alekseev , A. Bravar , G. Bunce , S. Dhawan , R. Gill , W. Haeberli , O. Jinnouchi , A. Khodinov , Y. Makdisi , A. Nass , N. Saito , E. J. Stephenson , D. N. Svirida , T. Wise , A. Zelenski

Single Spin Asymmetry $A_N$ in Polarized Proton-Proton Elastic Scattering at $\sqrt{s}=200$ GeV

We report a high precision measurement of the transverse single spin asymmetry $A_N$ at the center of mass energy $\sqrt{s}=200$ GeV in elastic proton-proton scattering by the STAR experiment at RHIC. The $A_N$ was measured in the…

Nuclear Experiment · Physics 2013-01-31 STAR Collaboration , L. Adamczyk , G. Agakishiev , M. M. Aggarwal , Z. Ahammed , A. V. Alakhverdyants , I. Alekseev , J. Alford , C. D. Anson , D. Arkhipkin , E. Aschenauer , G. S. Averichev , J. Balewski , A. Banerjee , Z. Barnovska , D. R. Beavis , R. Bellwied , M. J. Betancourt , R. R. Betts , A. Bhasin , A. K. Bhati , H. Bichsel , J. Bielcik , J. Bielcikova , L. C. Bland , I. G. Bordyuzhin , W. Borowski , J. Bouchet , A. V. Brandin , S. G. Brovko , E. Bruna , S. Bültmann , I. Bunzarov , T. P. Burton , J. Butterworth , X. Z. Cai , H. Caines , M. Calderón de la Barca Sánchez , D. Cebra , R. Cendejas , M. C. Cervantes , P. Chaloupka , Z. Chang , S. Chattopadhyay , H. F. Chen , J. H. Chen , J. Y. Chen , L. Chen , J. Cheng , M. Cherney , A. Chikanian , W. Christie , P. Chung , J. Chwastowski , M. J. M. Codrington , R. Corliss , J. G. Cramer , H. J. Crawford , X. Cui , S. Das , A. Davila Leyva , L. C. De Silva , R. R. Debbe , T. G. Dedovich , J. Deng , R. Derradi de Souza , S. Dhamija , L. Didenko , F. Ding , A. Dion , P. Djawotho , X. Dong , J. L. Drachenberg , J. E. Draper , C. M. Du , L. E. Dunkelberger , J. C. Dunlop , L. G. Efimov , M. Elnimr , J. Engelage , G. Eppley , L. Eun , O. Evdokimov , R. Fatemi , S. Fazio , J. Fedorisin , R. G. Fersch , P. Filip , E. Finch , Y. Fisyak , C. A. Gagliardi , D. R. Gangadharan , F. Geurts , A. Gibson , S. Gliske , Y. N. Gorbunov , O. G. Grebenyuk , D. Grosnick , S. Gupta , W. Guryn , B. Haag , O. Hajkova , A. Hamed , L-X. Han , J. W. Harris , J. P. Hays-Wehle , S. Heppelmann , A. Hirsch , G. W. Hoffmann , D. J. Hofman , S. Horvat , B. Huang , H. Z. Huang , P. Huck , T. J. Humanic , L. Huo , G. Igo , W. W. Jacobs , C. Jena , E. G. Judd , S. Kabana , K. Kang , J. Kapitan , K. Kauder , H. W. Ke , D. Keane , A. Kechechyan , A. Kesich , D. P. Kikola , J. Kiryluk , I. Kisel , A. Kisiel , V. Kizka , S. R. Klein , D. D. Koetke , T. Kollegger , J. Konzer , I. Koralt , L. Koroleva , W. Korsch , L. Kotchenda , P. Kravtsov , K. Krueger , I. Kulakov , L. Kumar , M. A. C. Lamont , J. M. Landgraf , S. LaPointe , J. Lauret , A. Lebedev , R. Lednicky , J. H. Lee , W. Leight , M. J. LeVine , C. Li , L. Li , W. Li , X. Li , X. Li , Y. Li , Z. M. Li , L. M. Lima , M. A. Lisa , F. Liu , T. Ljubicic , W. J. Llope , R. S. Longacre , Y. Lu , X. Luo , A. Luszczak , G. L. Ma , Y. G. Ma , D. M. M. D. Madagodagettige Don , D. P. Mahapatra , R. Majka , O. I. Mall , S. Margetis , C. Markert , H. Masui , H. S. Matis , D. McDonald , T. S. McShane , S. Mioduszewski , M. K. Mitrovski , Y. Mohammed , B. Mohanty , M. M. Mondal , B. Morozov , M. G. Munhoz , M. K. Mustafa , M. Naglis , B. K. Nandi , Md. Nasim , T. K. Nayak , J. M. Nelson , L. V. Nogach , J. Novak , G. Odyniec , A. Ogawa , K. Oh , A. Ohlson , V. Okorokov , E. W. Oldag , R. A. N. Oliveira , D. Olson , P. Ostrowski , M. Pachr , B. S. Page , S. K. Pal , Y. X. Pan , Y. Pandit , Y. Panebratsev , T. Pawlak , B. Pawlik , H. Pei , C. Perkins , W. Peryt , P. Pile , M. Planinic , J. Pluta , D. Plyku , N. Poljak , J. Porter , A. M. Poskanzer , C. B. Powell , C. Pruneau , N. K. Pruthi , M. Przybycien , P. R. Pujahari , J. Putschke , H. Qiu , R. Raniwala , S. Raniwala , R. L. Ray , R. Redwine , R. Reed , C. K. Riley , H. G. Ritter , J. B. Roberts , O. V. Rogachevskiy , J. L. Romero , J. F. Ross , L. Ruan , J. Rusnak , N. R. Sahoo , P. K. Sahu , I. Sakrejda , S. Salur , A. Sandacz , J. Sandweiss , E. Sangaline , A. Sarkar , J. Schambach , R. P. Scharenberg , A. M. Schmah , B. Schmidke , N. Schmitz , T. R. Schuster , J. Seele , J. Seger , P. Seyboth , N. Shah , E. Shahaliev , M. Shao , B. Sharma , M. Sharma , S. S. Shi , Q. Y. Shou , E. P. Sichtermann , R. N. Singaraju , M. J. Skoby , D. Smirnov , N. Smirnov , D. Solanki , P. Sorensen , U. G. deSouza , H. M. Spinka , B. Srivastava , T. D. S. Stanislaus , S. G. Steadman , J. R. Stevens , R. Stock , M. Strikhanov , B. Stringfellow , A. A. P. Suaide , M. C. Suarez , M. Sumbera , X. M. Sun , Y. Sun , Z. Sun , B. Surrow , D. N. Svirida , T. J. M. Symons , A. Szanto de Toledo , J. Takahashi , A. H. Tang , Z. Tang , L. H. Tarini , T. Tarnowsky , D. Thein , J. H. Thomas , J. Tian , A. R. Timmins , D. Tlusty , M. Tokarev , S. Trentalange , R. E. Tribble , P. Tribedy , B. A. Trzeciak , O. D. Tsai , J. Turnau , T. Ullrich , D. G. Underwood , G. Van Buren , G. van Nieuwenhuizen , J. A. Vanfossen, , R. Varma , G. M. S. Vasconcelos , F. Videbæk , Y. P. Viyogi , S. Vokal , S. A. Voloshin , A. Vossen , M. Wada , F. Wang , G. Wang , H. Wang , J. S. Wang , Q. Wang , X. L. Wang , Y. Wang , G. Webb , J. C. Webb , G. D. Westfall , C. Whitten , H. Wieman , S. W. Wissink , R. Witt , W. Witzke , Y. F. Wu , Z. Xiao , W. Xie , K. Xin , H. Xu , N. Xu , Q. H. Xu , W. Xu , Y. Xu , Z. Xu , L. Xue , Y. Yang , Y. Yang , P. Yepes , Y. Yi , K. Yip , I-K. Yoo , M. Zawisza , H. Zbroszczyk , J. B. Zhang , S. Zhang , X. P. Zhang , Y. Zhang , Z. P. Zhang , F. Zhao , J. Zhao , C. Zhong , X. Zhu , Y. H. Zhu , Y. Zoulkarneeva , M. Zyzak

Is there exist a hadron spin-flip contribution in the Coulomb-hadron interference at small transfer momenta and high energies

The analysing power $A_N$ is examined in the range of the Coulomb-hadron interferenceon on the basis of the experimental data from p_L = 6 GeV/c up to 200 GeV/c taking account of a phenomenological analysis at p_L = 6 GeV/c and a dynamic…

High Energy Physics - Phenomenology · Physics 2014-11-18 O. V. Selyugin

Measurements of Single and Double Spin Asymmetry in \textit{pp} Elastic Scattering in the CNI Region with Polarized Hydrogen Gas Jet Target

Precise measurements of the single spin asymmetry, $A_N$ and the double spin asymmetry, $A_{NN}$, in proton-proton (\textit{pp}) elastic scattering in the region of four-momentum transfer squared $0.001 < -t < 0.032 ({\rm GeV}/c)^2$ have…

High Energy Physics - Experiment · Physics 2010-12-13 H. Okada , I. Alekseev , A. Bravar , G. Bunce , S. Dhawan , K. O. Eyser , R. Gill , W. Haeberli , H. Huang , O. Jinnouchi , Y. Makdishi , I. Nakagawa , A. Nass , N. Saito , E. Stephenson , D. Sviridia , T. Wise , J. Wood , A. Zelenski

Measurement of the analyzing power of proton-carbon elastic scattering in the CNI region at RHIC

The single transverse spin asymmetry, A_N, of the p-carbon elastic scattering process in the Coulomb Nuclear Interference (CNI) region was measured using an ultra thin carbon target and polarized proton beam in the Relativistic Heavy Ion…

Nuclear Experiment · Physics 2017-08-23 O. Jinnouchi , I. G. Alekseev , A. Bravar , G. Bunce , S. Dhawan , H. Huang , G. Igo , V. P. Kanavets , K. Kurita , H. Okada , N. Saito , H. Spinka , D. N. Svirida , J. Wood

Measurement of the Transverse Single-Spin Asymmetry for Mid-rapidity Production of Neutral Pions in Polarized p+p Collisions at 200 GeV Center-of-Mass Energy

The spin structure of the proton has revealed itself to be extremely complex and is an area of ongoing research. The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) inaugurated its operation as the first…

High Energy Physics - Experiment · Physics 2007-05-23 Christine Angela Aidala

Precision Small Scattering Angle Measurements of Elastic Proton-Proton Single and Double Spin Analyzing Powers at the RHIC Hydrogen Jet Polarimeter

The Polarized Atomic Hydrogen Gas Jet Target polarimeter is employed by the Relativistic Heavy Ion Collider (RHIC) to measure the absolute polarization of each colliding proton beam. Polarimeter detectors and data acquisition were upgraded…

High Energy Physics - Experiment · Physics 2019-10-18 A. A. Poblaguev , A. Zelenski , E. Aschenauer , G. Atoian , K. O. Eyser , H. Huang , Y. Makdisi , W. B. Schmidke , I. Alekseev , D. Svirida , N. H. Buttimore

Leading neutrons from polarized pp collisions

We calculate the cross section and single-spin azimuthal asymmetry, A_n(t) for inclusive neutron production in pp collisions at forward rapidities relative to the polarized proton. Absorptive corrections to the pion pole generate a relative…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Z. Kopeliovich , I. K. Potashnikova , Ivan Schmidt , J. Soffer

Recent results in high-energy longitudinal polarized proton-proton collisions at 200GeV at RHIC

We report on recent results of the longitudinal double-spin asymmetry A_LL from the STAR and PHENIX experiments. Data were collected in longitudinally polarized proton-proton collisions at a center-of-mass energy of 200 GeV. The results…

Nuclear Experiment · Physics 2019-08-13 T. Sakuma

Impact picture for the analyzing power $A_N$ in very forward $pp$ elastic scattering

In the framework of the impact picture we compute the analyzing power $A_N$ for $pp$ elastic scattering at high energy and in the very forward direction. We consider the full set of Coulomb amplitudes and show that the interference between…

High Energy Physics - Phenomenology · Physics 2008-11-26 Claude Bourrely , Jacques Soffer , Tai Tsun Wu

Corrections to the Elastic Proton-Proton Analyzing Power Parametrization at High Energies

The HJET Polarized Atomic Hydrogen Gas Jet Target polarimeter (HJET) polarimeter was designed to measure the absolute polarization of the proton beams at the Relativistic Heavy Ion Collider. In these measurements, the small scattering angle…

High Energy Physics - Phenomenology · Physics 2019-12-25 A. A. Poblaguev

Hadron spin-flip amplitude: an analysis of the new AN data from RHIC

Through a direct analysis of the scattering amplitude, we show that the preliminary measurement of the analysing power AN obtained by the E950 Collaboration at different energies are mainly sensitive to the spin-flip part of the amplitude…

High Energy Physics - Phenomenology · Physics 2014-11-17 O. V. Selyugin , J. -R. Cudell

First Measurement of Proton-Proton Elastic Scattering at RHIC

The first result of the pp2pp experiment at RHIC on elastic scattering of polarized protons at sqrt{s} = 200 GeV is reported here. The exponential slope parameter b of the diffractive peak of the elastic cross section in the t range 0.010…

Nuclear Experiment · Physics 2008-12-18 S. Bueltmann

Hadronic Spin Dependence and the Use of Coulomb-Nuclear Interference as a Polarimeter

Coulomb-nuclear interference in the single transverse spin asymmetry A_N is often considered as a possible absolute polarimeter for proton beams. The main uncertainty in this is the unknown hadronic spin-flip amplitude. This uncertainty is…

High Energy Physics - Phenomenology · Physics 2008-02-03 T. L. Trueman

Measurement of the Transverse Single Spin Asymmetry of $p$ + $p^\uparrow$ $\rightarrow$ $\eta$ + $X$ at $\sqrt{s}$ = 200 GeV

The measurement of transverse single spin asymmetries ($A_N$) provides insight into the structure of the nucleon. Several mechanisms have been proposed that attempt to explain $A_N$ based on QCD, and additional measurements of $A_N$ for…

Nuclear Experiment · Physics 2019-08-13 David Kleinjan

Measurement of the double longitudinal spin asymmetry in inclusive jet production in polarized p+p collisions at sqrt(s) = 200 GeV

We present preliminary results for the first measurements of the double longitudinal spin asymmetry A_LL in inclusive jet production at mid-rapidity in polarized proton-proton collisions at sqrt(s) = 200 GeV. The data amount to ~ 0.5 pb-1…

High Energy Physics - Experiment · Physics 2019-08-14 Joanna Kiryluk

Structure of spin-dependent scattering amplitude and spin effects at small angles at RHIC energies

Spin-dependent pomeron effects are analyzed for elastic $pp$ scattering and calculations for spin-dependent differential cross sections, analyzing power and double-spin correlation parameters are carried out for the energy range of the…

High Energy Physics - Phenomenology · Physics 2008-02-03 N. Akchurin , S. V. Goloskokov , O. V. Selyugin