Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at p=510 GeV in p ⃗+p ⃗Collisions ffiffi s

被引：5

作者：

Abdulameer, N. J. ^{[14
]}

Acharya, U. ^{[19
]}

Adare, A. ^{[11
]}

Aidala, C. ^{[42
]}

Ajitanand, N. N. ^{[61
]}

Akiba, Y. ^{[56
,57
]}

Akimoto, R. ^{[10
]}

Alfred, M. ^{[22
]}

Apadula, N. ^{[27
,62
]}

Aramaki, Y. ^{[56
]}

Asano, H. ^{[34
,56
]}

Atomssa, E. T. ^{[62
]}

Awes, T. C. ^{[52
]}

Azmoun, B.

Babintsev, V. ^{[23
]}

Bai, M. ^{[6
]}

Bandara, N. S. ^{[40
]}

Bannier, B. ^{[62
]}

Barish, K. N.

Bathe, S. ^{[5
,57
]}

Bazilevsky, A. ^{[7
]}

Beaumier, M. ^{[8
]}

Beckman, S. ^{[11
]}

Belmont, R. ^{[11
,50
]}

Berdnikov, A. ^{[59
]}

Berdnikov, Y. ^{[59
]}

Bichon, L. ^{[67
]}

Black, D. ^{[8
]}

Blankenship, B. ^{[67
]}

Bok, J. S. ^{[49
]}

Borisov, V. ^{[59
]}

Boyle, K. ^{[57
]}

Brooks, M. L. ^{[37
]}

Bryslawskyj, J. ^{[5
,8
]}

Buesching, H. ^{[7
]}

Bumazhnov, V. ^{[23
]}

Campbell, S. ^{[12
,27
]}

Roman, V. Canoa ^{[62
]}

Chen, C. -H. ^{[57
]}

Chiu, M. ^{[7
]}

Chi, C. Y. ^{[12
]}

Choi, I. J. ^{[24
]}

Choi, J. B. ^{[29
]}

Chujo, T. ^{[66
]}

Citron, Z. ^{[68
]}

Connors, M. ^{[19
]}

Corliss, R. ^{[62
]}

Morales, Y. Corrales ^{[37
]}

Csanad, M. ^{[15
]}

Csorgo, T. ^{[41
,69
]}

机构：

[1] Abilene Christian Univ, Abilene, TX 79699 USA

[2] Augustana Univ, Dept Phys, Sioux Falls, SD 57197 USA

[3] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India

[4] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India

[5] City Univ New York, Baruch Coll, New York, NY 10010 USA

[6] Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA

[7] Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA

[8] Univ Calif Riverside, Riverside, CA 92521 USA

[9] Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic

[10] Univ Tokyo, Grad Sch Sci, Ctr Nucl Study, 7-3-1 Hongo,Bunkyo, Tokyo 1130033, Japan

[11] Univ Colorado, Boulder, CO 80309 USA

[12] Columbia Univ, New York, NY 10027 USA

[13] Czech Tech Univ, Zikova 4, Prague 16636 6, Czech Republic

[14] Debrecen Univ, Egyet Ter 1, H-4010 Debrecen, Hungary

[15] Eotvos Lorand Univ, ELTE, Pazmany P s 1-A, H-1117 Budapest, Hungary

[16] Ewha Womans Univ, Seoul 120750, South Korea

[17] Florida A&M Univ, Tallahassee, FL 32307 USA

[18] Florida State Univ, Tallahassee, FL 32306 USA

[19] Georgia State Univ, Atlanta, GA 30303 USA

[20] Hanyang Univ, Seoul 133792, South Korea

[21] Hiroshima Univ, Higashihiroshima 7398526, Japan

[22] Howard Univ, Dept Phys & Astron, Washington, DC USA

[23] IHEP Protvino, State Res Ctr Russian Federat, Inst High Energy Phys, Protvino 142281, Russia

[24] Univ Illinois, Urbana, IL 61801 USA

[25] Russian Acad Sci, Inst Nucl Res, Prospekt 60 letiya Oktyabrya 7a, Moscow 117312, Russia

[26] Acad Sci Czech Republic, Inst Phys, Slovance 2, Prague 18221 8, Czech Republic

[27] Iowa State Univ, Ames, IA 50011 USA

[28] Japan Atom Energy Agcy, Adv Sci Res Ctr, 2-4 Shirakata Shirane, Tokai, Ibaraki 3191195, Japan

[29] Jeonbuk Natl Univ, Jeonju 54896, South Korea

[30] Helsinki Inst Phys, POB 35, FI-40014 Jyvaskyla, Finland

[31] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[32] Korea Univ, Seoul 02841, South Korea

[33] Natl Res Ctr Kurchatov Inst, Moscow 123098, Russia

[34] Kyoto Univ, Kyoto 6068502, Japan

[35] Lahore Univ Management Sci, Phys Dept, Lahore 54792, Pakistan

[36] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[37] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[38] Lund Univ, Dept Phys, POB 118, SE-22100 Lund, Sweden

[39] Univ Maryland, College Pk, MD 20742 USA

[40] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[41] Lab Femtoscopy, MATE, Karoly Robert Campus, H-36 Matraiut, Hungary

[42] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[43] Mississippi State Univ, Mississippi State, MS 39762 USA

[44] Muhlenberg Coll, Allentown, PA 18104 USA

[45] Myongji Univ, Yongin 449728, Kyonggido, South Korea

[46] Nara Womens Univ, Kita Uoya Nishi Machi, Nara 6308506, Japan

[47] Natl Res Nucl Univ, Moscow Engn Phys Inst, MEPhI, Moscow 115409, Russia

[48] Univ New Mexico, Albuquerque, NM 87131 USA

[49] New Mexico State Univ, Las Cruces, NM 88003 USA

[50] Univ North Carolina Greensboro, Phys & Astron Dept, Greensboro, NC 27412 USA

来源：

PHYSICAL REVIEW LETTERS | 2023年 / 130卷 / 25期

基金：

美国国家科学基金会; 日本学术振兴会; 以色列科学基金会;

关键词：

PROTON; SCATTERING; DEUTERON; DETECTOR;

D O I：

10.1103/PhysRevLett.130.251901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present measurements of the cross section and double-helicity asymmetry ALL of direct-photon production in p ⃗ + p ⃗ collisions at ffis ffi p = 510 GeV. The measurements have been performed at midrapidity (I & eta;I < 0.25) with the PHENIX detector at the Relativistic Heavy Ion Collider. At relativistic energies, direct photons are dominantly produced from the initial quark-gluon hard scattering and do not interact via the ffiffistrong force at leading order. Therefore, at p s = 510 GeV, where leading-order-effects dominate, these measurements provide clean and direct access to the gluon helicity in the polarized proton in the gluon-momentum-fraction range 0.02 < x < 0.08, with direct sensitivity to the sign of the gluon contribution.

引用

页数：8

共 50 条

[1] Inclusive cross section and double-helicity asymmetry for π0 production at midrapidity in p plus p collisions at √s=510 GeV
Adare, A.
Aidala, C.
Ajitanand, N. N.
Akiba, Y.
Akimoto, R.
Alexander, J.
Alfred, M.
Aoki, K.
Apadula, N.
Aramaki, Y.
Asano, H.
Atomssa, E. T.
Awes, T. C.
Azmoun, B.
Babintsev, V.
Bai, M.
Bai, X.
Bandara, N. S.
Bannier, B.
Barish, K. N.
Bathe, S.
Baublis, V.
Baumann, C.
Baumgart, S.
Bazilevsky, A.
Beaumier, M.
Beckman, S.
Belmont, R.
Berdnikov, A.
Berdnikov, Y.
Black, D.
Blau, D. S.
Bok, J. S.
Boyle, K.
Brooks, M. L.
Bryslawskyj, J.
Buesching, H.
Bumazhnov, V.
Butsyk, S.
Campbell, S.
Chen, C. -H.
Chi, C. Y.
Chiu, M.
Choi, I. J.
Choi, J. B.
Choi, S.
Christiansen, P.
Chujo, T.
Cianciolo, V.
Citron, Z.
PHYSICAL REVIEW D, 2016, 93 (01)
[2] Cross section and double-helicity asymmetry in charged hadron production in p plus p collisions at √s=62.4 GeV at PHENIX
Aidala, Christine A.
19TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM (SPIN2010), PT 2, 2011, 295
[3] Measurements of double-helicity asymmetries in inclusive J/Ψ production in longitudinally polarized p plus p collisions at √s=510 GeV
Adare, A.
Aidala, C.
Ajitanand, N. N.
Akiba, Y.
Akimoto, R.
Alfred, M.
Apadula, N.
Aramaki, Y.
Asano, H.
Atomssa, E. T.
Awes, T. C.
Azmoun, B.
Babintsev, V.
Bai, M.
Bandara, N. S.
Bannier, B.
Barish, K. N.
Bathe, S.
Bazilevsky, A.
Beaumier, M.
Beckman, S.
Belmont, R.
Berdnikov, A.
Berdnikov, Y.
Black, D.
Blau, D. S.
Bok, J. S.
Boyle, K.
Brooks, M. L.
Bryslawskyj, J.
Buesching, H.
Bumazhnov, V.
Campbell, S.
Chen, C. -H.
Chi, C. Y.
Chiu, M.
Choi, I. J.
Choi, J. B.
Chujo, T.
Citron, Z.
Csanad, M.
Csorgo, T.
Danley, T. W.
Datta, A.
Daugherity, M. S.
David, G.
DeBlasio, K.
Dehmelt, K.
Denisov, A.
Deshpande, A.
PHYSICAL REVIEW D, 2016, 94 (11)
[4] Inclusive cross section and double helicity asymmetry for π0 production in p plus p collisions at √s=62.4 GeV
Adare, A.
Afanasiev, S.
Aidala, C.
Ajitanand, N. N.
Akiba, Y.
Al-Bataineh, H.
Alexander, J.
Aoki, K.
Aphecetche, L.
Asai, J.
Atomssa, E. T.
Averbeck, R.
Awes, T. C.
Azmoun, B.
Babintsev, V.
Bai, M.
Baksay, G.
Baksay, L.
Baldisseri, A.
Barish, K. N.
Barnes, P. D.
Bassalleck, B.
Basye, A. T.
Bathe, S.
Batsouli, S.
Baublis, V.
Baumann, C.
Bazilevsky, A.
Belikov, S.
Bennett, R.
Berdnikov, A.
Berdnikov, Y.
Bickley, A. A.
Boissevain, J. G.
Borel, H.
Boyle, K.
Brooks, M. L.
Buesching, H.
Bumazhnov, V.
Bunce, G.
Butsyk, S.
Camacho, C. M.
Campbell, S.
Chand, P.
Chang, B. S.
Chang, W. C.
Charvet, J.-L.
Chernichenko, S.
Chi, C. Y.
Chiu, M.
PHYSICAL REVIEW D, 2009, 79 (01):
[5] Cross section and double helicity asymmetry for η mesons and their comparison to π0 production in p plus p collisions at √s=200 GeV
Adare, A.
Afanasiev, S.
Aidala, C.
Ajitanand, N. N.
Akiba, Y.
Al-Bataineh, H.
Alexander, J.
Aoki, K.
Aphecetche, L.
Armendariz, R.
Aronson, S. H.
Asai, J.
Atomssa, E. T.
Averbeck, R.
Awes, T. C.
Azmoun, B.
Babintsev, V.
Bai, M.
Baksay, G.
Baksay, L.
Baldisseri, A.
Barish, K. N.
Barnes, P. D.
Bassalleck, B.
Basye, A. T.
Bathe, S.
Batsouli, S.
Baublis, V.
Baumann, C.
Bazilevsky, A.
Belikov, S.
Bennett, R.
Berdnikov, A.
Berdnikov, Y.
Bickley, A. A.
Boissevain, J. G.
Borel, H.
Boyle, K.
Brooks, M. L.
Buesching, H.
Bumazhnov, V.
Bunce, G.
Butsyk, S.
Camacho, C. M.
Campbell, S.
Chang, B. S.
Chang, W. C.
Charvet, J. -L.
Chernichenko, S.
Chiba, J.
PHYSICAL REVIEW D, 2011, 83 (03):
[6] Cross sections and double-helicity asymmetries of midrapidity inclusive charged hadrons in p plus p collisions at √s = 62.4 GeV
Adare, A.
Afanasiev, S.
Aidala, C.
Ajitanand, N. N.
Akiba, Y.
Al-Bataineh, H.
Alexander, J.
Aoki, K.
Aphecetche, L.
Asai, J.
Atomssa, E. T.
Averbeck, R.
Awes, T. C.
Azmoun, B.
Babintsev, V.
Bai, M.
Baksay, G.
Baksay, L.
Baldisseri, A.
Barish, K. N.
Barnes, P. D.
Bassalleck, B.
Basye, A. T.
Bathe, S.
Batsouli, S.
Baublis, V.
Baumann, C.
Bazilevsky, A.
Belikov, S.
Bennett, R.
Berdnikov, A.
Berdnikov, Y.
Bickley, A. A.
Boissevain, J. G.
Borel, H.
Boyle, K.
Brooks, M. L.
Buesching, H.
Bumazhnov, V.
Bunce, G.
Butsyk, S.
Camacho, C. M.
Campbell, S.
Chang, B. S.
Chang, W. C.
Charvet, J. -L.
Chernichenko, S.
Chi, C. Y.
Chiu, M.
Choi, I. J.
PHYSICAL REVIEW D, 2012, 86 (09):
[7] Charged-pion cross sections and double-helicity asymmetries in polarized p plus p collisions at √s=200 GeV
Adare, A.
Aidala, C.
Ajitanand, N. N.
Akiba, Y.
Akimoto, R.
Al-Ta'ani, H.
Alexander, J.
Andrews, K. R.
Angerami, A.
Aoki, K.
Apadula, N.
Appelt, E.
Aramaki, Y.
Armendariz, R.
Aschenauer, E. C.
Atomssa, E. T.
Awes, T. C.
Azmoun, B.
Babintsev, V.
Bai, M.
Bannier, B.
Barish, K. N.
Bassalleck, B.
Basye, A. T.
Bathe, S.
Baublis, V.
Baumann, C.
Bazilevsky, A.
Belmont, R.
Ben-Benjamin, J.
Bennett, R.
Blau, D. S.
Bok, J. S.
Boyle, K.
Brooks, M. L.
Broxmeyer, D.
Buesching, H.
Bumazhnov, V.
Bunce, G.
Butsyk, S.
Campbell, S.
Castera, P.
Chen, C. -H.
Chi, C. Y.
Chiu, M.
Choi, I. J.
Choi, J. B.
Choudhury, R. K.
Christiansen, P.
Chujo, T.
PHYSICAL REVIEW D, 2015, 91 (03):
[8] J/ψ Longitudinal Double Spin Asymmetry Measurement at Forward Rapidity in p plus p Collisions at √s=510 GeV
Yu, Haiwang
PROCEEDINGS OF THE 21ST INTERNATIONAL SYMPOSIUM ON SPIN PHYSICS (SPIN2014), 2016, 40
[9] Measurement of the helicity asymmetry of the γp cross section between 2.5 and 5.3 GeV
Sober, DI
Todor, L
Bosted, PE
Kuhn, SE
GDH 2002: PROCEEDINGS OF THE SECOND INTERNATIONAL SYMPOSIUM ON THE GERASIMOV-DRELL-HEARN SUM RULE AND THE SPIN STRUCTURE OF THE NUCLEON, 2003, : 253 - 257
[10] Measurement of the Cross Section for Direct-Photon Production in Association with a Heavy Quark in p(p)over-bar Collisions at √s=1.96 TeV
Aaltonen, T.
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Appel, J. A.
Arisawa, T.
Artikov, A.
Asaadi, J.
Ashmanskas, W.
Auerbach, B.
Aurisano, A.
Azfar, F.
Badgett, W.
Bae, T.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Barria, P.
Bartos, P.
Bauce, M.
Bedeschi, F.
Behari, S.
Bellettini, G.
Bellinger, J.
Benjamin, D.
Beretvas, A.
Bhatti, A.
Bland, K. R.
Blumenfeld, B.
Bocci, A.
Bodek, A.
Bortoletto, D.
Boudreau, J.
Boveia, A.
Brigliadori, L.
Bromberg, C.
Brucken, E.
Budagov, J.
Budd, H. S.
Burkett, K.
Busetto, G.
Bussey, P.
Butti, P.
Buzatu, A.
Calamba, A.
Camarda, S.
Campanelli, M.
PHYSICAL REVIEW LETTERS, 2013, 111 (04)

← 1 2 3 4 5 →