Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at $\sqrt{s}=510$ GeV in $\vec{p}+\vec{p}$ Collisions
We present measurements of the cross section and double-helicity asymmetry $A_{LL}$ of direct-photon production in $\vec{p}+\vec{p}$ collisions at $\sqrt{s}=510$ GeV. The measurements have been performed at midrapidity ($|\eta|
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| creator | PHENIX Collaboration Abdulameer, N. J Aidala, C Ajitanand, N. N Akiba, Y Alfred, M Azmoun, B Babintsev, V Bai, M Bathe, S Beckman, S Bichon, L Blankenship, B Bryslawskyj, J Roman, V. Canoa Datta, A Dean, C. T Ding, L Drees, A Durham, J. M Durum, A Fan, W Fields, D. E Finger,Jr, M Firak, D Franz, A Gallus, P Gal, C Garg, P Goto, Y Perdekamp, M. Grosse Gunji, T Guragain, H Haggerty, J. S Hamagaki, H Hanks, J Hasegawa, S Hodges, A Homma, K Iordanova, A Jiang, X Ji, Z Jumper, D. S Khachatryan, V Khanzadeev, A Kim, D. H Kim, D. J Kim, Y. K Kingan, A Kurgyis, B Lebedev, A Lee, K. B Lee, S. H Leitgab, M Liu, M. X Loomis, D. A Makdisi, Y. I Meles, A Mendoza, M Miake, Y Mignerey, A. C Mizuno, S Moukhanova, T. V Mwai, A Niida, T Ogilvie, C. A Pak, R Papavassiliou, V Patel, L Patel, M Pate, S. F Peng, W Perepelitsa, D. V Perera, G. D. N Perry, J Rak, J Reynolds, D Riabov, V Sawada, S Shibata, M Shibata, T. -A Shimomura, M Sorensen, S. P Sukhanov, A Sun, J Sziklai, J Takahama, R Tanida, K Tannenbaum, M. J Tomášek, M Towell, R. S Ueda, Y Velkovska, J Vrba, V Woody, C. L Wysocki, M Xia, B Yalcin, S Younus, I Zou, L |
| description | We present measurements of the cross section and double-helicity asymmetry
$A_{LL}$ of direct-photon production in $\vec{p}+\vec{p}$ collisions at
$\sqrt{s}=510$ GeV. The measurements have been performed at midrapidity
($|\eta| |
| doi_str_mv | 10.48550/arxiv.2202.08158 |
| format | Article |
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$A_{LL}$ of direct-photon production in $\vec{p}+\vec{p}$ collisions at
$\sqrt{s}=510$ GeV. The measurements have been performed at midrapidity
($|\eta|<0.25$) 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 strong
force at leading order. Therefore, at $\sqrt{s}=510$ 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.</description><identifier>DOI: 10.48550/arxiv.2202.08158</identifier><language>eng</language><subject>Physics - High Energy Physics - Experiment ; Physics - Nuclear Experiment</subject><creationdate>2022-02</creationdate><rights>http://creativecommons.org/licenses/by/4.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,885</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2202.08158$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2202.08158$$DView paper in arXiv$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.1103/PhysRevLett.130.251901$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink></links><search><creatorcontrib>PHENIX Collaboration</creatorcontrib><creatorcontrib>Abdulameer, N. J</creatorcontrib><creatorcontrib>Aidala, C</creatorcontrib><creatorcontrib>Ajitanand, N. N</creatorcontrib><creatorcontrib>Akiba, Y</creatorcontrib><creatorcontrib>Alfred, M</creatorcontrib><creatorcontrib>Azmoun, B</creatorcontrib><creatorcontrib>Babintsev, V</creatorcontrib><creatorcontrib>Bai, M</creatorcontrib><creatorcontrib>Bathe, S</creatorcontrib><creatorcontrib>Beckman, S</creatorcontrib><creatorcontrib>Bichon, L</creatorcontrib><creatorcontrib>Blankenship, B</creatorcontrib><creatorcontrib>Bryslawskyj, J</creatorcontrib><creatorcontrib>Roman, V. Canoa</creatorcontrib><creatorcontrib>Datta, A</creatorcontrib><creatorcontrib>Dean, C. T</creatorcontrib><creatorcontrib>Ding, L</creatorcontrib><creatorcontrib>Drees, A</creatorcontrib><creatorcontrib>Durham, J. M</creatorcontrib><creatorcontrib>Durum, A</creatorcontrib><creatorcontrib>Fan, W</creatorcontrib><creatorcontrib>Fields, D. 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A</creatorcontrib><creatorcontrib>Pak, R</creatorcontrib><creatorcontrib>Papavassiliou, V</creatorcontrib><creatorcontrib>Patel, L</creatorcontrib><creatorcontrib>Patel, M</creatorcontrib><creatorcontrib>Pate, S. F</creatorcontrib><creatorcontrib>Peng, W</creatorcontrib><creatorcontrib>Perepelitsa, D. V</creatorcontrib><creatorcontrib>Perera, G. D. N</creatorcontrib><creatorcontrib>Perry, J</creatorcontrib><creatorcontrib>Rak, J</creatorcontrib><creatorcontrib>Reynolds, D</creatorcontrib><creatorcontrib>Riabov, V</creatorcontrib><creatorcontrib>Sawada, S</creatorcontrib><creatorcontrib>Shibata, M</creatorcontrib><creatorcontrib>Shibata, T. -A</creatorcontrib><creatorcontrib>Shimomura, M</creatorcontrib><creatorcontrib>Sorensen, S. P</creatorcontrib><creatorcontrib>Sukhanov, A</creatorcontrib><creatorcontrib>Sun, J</creatorcontrib><creatorcontrib>Sziklai, J</creatorcontrib><creatorcontrib>Takahama, R</creatorcontrib><creatorcontrib>Tanida, K</creatorcontrib><creatorcontrib>Tannenbaum, M. J</creatorcontrib><creatorcontrib>Tomášek, M</creatorcontrib><creatorcontrib>Towell, R. S</creatorcontrib><creatorcontrib>Ueda, Y</creatorcontrib><creatorcontrib>Velkovska, J</creatorcontrib><creatorcontrib>Vrba, V</creatorcontrib><creatorcontrib>Woody, C. L</creatorcontrib><creatorcontrib>Wysocki, M</creatorcontrib><creatorcontrib>Xia, B</creatorcontrib><creatorcontrib>Yalcin, S</creatorcontrib><creatorcontrib>Younus, I</creatorcontrib><creatorcontrib>Zou, L</creatorcontrib><title>Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at $\sqrt{s}=510$ GeV in $\vec{p}+\vec{p}$ Collisions</title><description>We present measurements of the cross section and double-helicity asymmetry
$A_{LL}$ of direct-photon production in $\vec{p}+\vec{p}$ collisions at
$\sqrt{s}=510$ GeV. The measurements have been performed at midrapidity
($|\eta|<0.25$) 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 strong
force at leading order. Therefore, at $\sqrt{s}=510$ 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.</description><subject>Physics - High Energy Physics - Experiment</subject><subject>Physics - Nuclear Experiment</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNqFjj0LwjAURbM4iPoDnHxDN2lNq4UuDlK_FkFQnIQS6ysG0kbzoliK_nZrcXc63Mvlchjr-9ybRGHIR8I85cMLAh54PPLDqM3eGxR0N5hjYUFnMJcGU-tuL9rqAmKjiWBXN7JOojjDXN9PCt01KplKW8KMyjxHa0oQFpwj3Yyt6DUNfe7ACg8gi7p9YFpdX8MfHYi1UpLqS-qyViYUYe_HDhssF_t47TamydXIXJgy-RonjfH4_-IDKNNMkQ</recordid><startdate>20220216</startdate><enddate>20220216</enddate><creator>PHENIX Collaboration</creator><creator>Abdulameer, N. J</creator><creator>Aidala, C</creator><creator>Ajitanand, N. N</creator><creator>Akiba, Y</creator><creator>Alfred, M</creator><creator>Azmoun, B</creator><creator>Babintsev, V</creator><creator>Bai, M</creator><creator>Bathe, S</creator><creator>Beckman, S</creator><creator>Bichon, L</creator><creator>Blankenship, B</creator><creator>Bryslawskyj, J</creator><creator>Roman, V. Canoa</creator><creator>Datta, A</creator><creator>Dean, C. T</creator><creator>Ding, L</creator><creator>Drees, A</creator><creator>Durham, J. M</creator><creator>Durum, A</creator><creator>Fan, W</creator><creator>Fields, D. E</creator><creator>Finger,Jr, M</creator><creator>Firak, D</creator><creator>Franz, A</creator><creator>Gallus, P</creator><creator>Gal, C</creator><creator>Garg, P</creator><creator>Goto, Y</creator><creator>Perdekamp, M. Grosse</creator><creator>Gunji, T</creator><creator>Guragain, H</creator><creator>Haggerty, J. S</creator><creator>Hamagaki, H</creator><creator>Hanks, J</creator><creator>Hasegawa, S</creator><creator>Hodges, A</creator><creator>Homma, K</creator><creator>Iordanova, A</creator><creator>Jiang, X</creator><creator>Ji, Z</creator><creator>Jumper, D. S</creator><creator>Khachatryan, V</creator><creator>Khanzadeev, A</creator><creator>Kim, D. H</creator><creator>Kim, D. J</creator><creator>Kim, Y. K</creator><creator>Kingan, A</creator><creator>Kurgyis, B</creator><creator>Lebedev, A</creator><creator>Lee, K. B</creator><creator>Lee, S. H</creator><creator>Leitgab, M</creator><creator>Liu, M. X</creator><creator>Loomis, D. A</creator><creator>Makdisi, Y. I</creator><creator>Meles, A</creator><creator>Mendoza, M</creator><creator>Miake, Y</creator><creator>Mignerey, A. C</creator><creator>Mizuno, S</creator><creator>Moukhanova, T. V</creator><creator>Mwai, A</creator><creator>Niida, T</creator><creator>Ogilvie, C. A</creator><creator>Pak, R</creator><creator>Papavassiliou, V</creator><creator>Patel, L</creator><creator>Patel, M</creator><creator>Pate, S. F</creator><creator>Peng, W</creator><creator>Perepelitsa, D. V</creator><creator>Perera, G. D. N</creator><creator>Perry, J</creator><creator>Rak, J</creator><creator>Reynolds, D</creator><creator>Riabov, V</creator><creator>Sawada, S</creator><creator>Shibata, M</creator><creator>Shibata, T. -A</creator><creator>Shimomura, M</creator><creator>Sorensen, S. P</creator><creator>Sukhanov, A</creator><creator>Sun, J</creator><creator>Sziklai, J</creator><creator>Takahama, R</creator><creator>Tanida, K</creator><creator>Tannenbaum, M. J</creator><creator>Tomášek, M</creator><creator>Towell, R. S</creator><creator>Ueda, Y</creator><creator>Velkovska, J</creator><creator>Vrba, V</creator><creator>Woody, C. L</creator><creator>Wysocki, M</creator><creator>Xia, B</creator><creator>Yalcin, S</creator><creator>Younus, I</creator><creator>Zou, L</creator><scope>GOX</scope></search><sort><creationdate>20220216</creationdate><title>Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at $\sqrt{s}=510$ GeV in $\vec{p}+\vec{p}$ Collisions</title><author>PHENIX Collaboration ; Abdulameer, N. J ; Aidala, C ; Ajitanand, N. N ; Akiba, Y ; Alfred, M ; Azmoun, B ; Babintsev, V ; Bai, M ; Bathe, S ; Beckman, S ; Bichon, L ; Blankenship, B ; Bryslawskyj, J ; Roman, V. Canoa ; Datta, A ; Dean, C. T ; Ding, L ; Drees, A ; Durham, J. M ; Durum, A ; Fan, W ; Fields, D. E ; Finger,Jr, M ; Firak, D ; Franz, A ; Gallus, P ; Gal, C ; Garg, P ; Goto, Y ; Perdekamp, M. Grosse ; Gunji, T ; Guragain, H ; Haggerty, J. S ; Hamagaki, H ; Hanks, J ; Hasegawa, S ; Hodges, A ; Homma, K ; Iordanova, A ; Jiang, X ; Ji, Z ; Jumper, D. S ; Khachatryan, V ; Khanzadeev, A ; Kim, D. H ; Kim, D. J ; Kim, Y. K ; Kingan, A ; Kurgyis, B ; Lebedev, A ; Lee, K. B ; Lee, S. H ; Leitgab, M ; Liu, M. X ; Loomis, D. A ; Makdisi, Y. I ; Meles, A ; Mendoza, M ; Miake, Y ; Mignerey, A. C ; Mizuno, S ; Moukhanova, T. V ; Mwai, A ; Niida, T ; Ogilvie, C. A ; Pak, R ; Papavassiliou, V ; Patel, L ; Patel, M ; Pate, S. F ; Peng, W ; Perepelitsa, D. V ; Perera, G. D. N ; Perry, J ; Rak, J ; Reynolds, D ; Riabov, V ; Sawada, S ; Shibata, M ; Shibata, T. -A ; Shimomura, M ; Sorensen, S. P ; Sukhanov, A ; Sun, J ; Sziklai, J ; Takahama, R ; Tanida, K ; Tannenbaum, M. J ; Tomášek, M ; Towell, R. S ; Ueda, Y ; Velkovska, J ; Vrba, V ; Woody, C. 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A</creatorcontrib><creatorcontrib>Pak, R</creatorcontrib><creatorcontrib>Papavassiliou, V</creatorcontrib><creatorcontrib>Patel, L</creatorcontrib><creatorcontrib>Patel, M</creatorcontrib><creatorcontrib>Pate, S. F</creatorcontrib><creatorcontrib>Peng, W</creatorcontrib><creatorcontrib>Perepelitsa, D. V</creatorcontrib><creatorcontrib>Perera, G. D. N</creatorcontrib><creatorcontrib>Perry, J</creatorcontrib><creatorcontrib>Rak, J</creatorcontrib><creatorcontrib>Reynolds, D</creatorcontrib><creatorcontrib>Riabov, V</creatorcontrib><creatorcontrib>Sawada, S</creatorcontrib><creatorcontrib>Shibata, M</creatorcontrib><creatorcontrib>Shibata, T. -A</creatorcontrib><creatorcontrib>Shimomura, M</creatorcontrib><creatorcontrib>Sorensen, S. P</creatorcontrib><creatorcontrib>Sukhanov, A</creatorcontrib><creatorcontrib>Sun, J</creatorcontrib><creatorcontrib>Sziklai, J</creatorcontrib><creatorcontrib>Takahama, R</creatorcontrib><creatorcontrib>Tanida, K</creatorcontrib><creatorcontrib>Tannenbaum, M. J</creatorcontrib><creatorcontrib>Tomášek, M</creatorcontrib><creatorcontrib>Towell, R. S</creatorcontrib><creatorcontrib>Ueda, Y</creatorcontrib><creatorcontrib>Velkovska, J</creatorcontrib><creatorcontrib>Vrba, V</creatorcontrib><creatorcontrib>Woody, C. L</creatorcontrib><creatorcontrib>Wysocki, M</creatorcontrib><creatorcontrib>Xia, B</creatorcontrib><creatorcontrib>Yalcin, S</creatorcontrib><creatorcontrib>Younus, I</creatorcontrib><creatorcontrib>Zou, L</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PHENIX Collaboration</au><au>Abdulameer, N. J</au><au>Aidala, C</au><au>Ajitanand, N. N</au><au>Akiba, Y</au><au>Alfred, M</au><au>Azmoun, B</au><au>Babintsev, V</au><au>Bai, M</au><au>Bathe, S</au><au>Beckman, S</au><au>Bichon, L</au><au>Blankenship, B</au><au>Bryslawskyj, J</au><au>Roman, V. Canoa</au><au>Datta, A</au><au>Dean, C. T</au><au>Ding, L</au><au>Drees, A</au><au>Durham, J. M</au><au>Durum, A</au><au>Fan, W</au><au>Fields, D. E</au><au>Finger,Jr, M</au><au>Firak, D</au><au>Franz, A</au><au>Gallus, P</au><au>Gal, C</au><au>Garg, P</au><au>Goto, Y</au><au>Perdekamp, M. Grosse</au><au>Gunji, T</au><au>Guragain, H</au><au>Haggerty, J. S</au><au>Hamagaki, H</au><au>Hanks, J</au><au>Hasegawa, S</au><au>Hodges, A</au><au>Homma, K</au><au>Iordanova, A</au><au>Jiang, X</au><au>Ji, Z</au><au>Jumper, D. S</au><au>Khachatryan, V</au><au>Khanzadeev, A</au><au>Kim, D. H</au><au>Kim, D. J</au><au>Kim, Y. K</au><au>Kingan, A</au><au>Kurgyis, B</au><au>Lebedev, A</au><au>Lee, K. B</au><au>Lee, S. H</au><au>Leitgab, M</au><au>Liu, M. X</au><au>Loomis, D. A</au><au>Makdisi, Y. I</au><au>Meles, A</au><au>Mendoza, M</au><au>Miake, Y</au><au>Mignerey, A. C</au><au>Mizuno, S</au><au>Moukhanova, T. V</au><au>Mwai, A</au><au>Niida, T</au><au>Ogilvie, C. A</au><au>Pak, R</au><au>Papavassiliou, V</au><au>Patel, L</au><au>Patel, M</au><au>Pate, S. F</au><au>Peng, W</au><au>Perepelitsa, D. V</au><au>Perera, G. D. N</au><au>Perry, J</au><au>Rak, J</au><au>Reynolds, D</au><au>Riabov, V</au><au>Sawada, S</au><au>Shibata, M</au><au>Shibata, T. -A</au><au>Shimomura, M</au><au>Sorensen, S. P</au><au>Sukhanov, A</au><au>Sun, J</au><au>Sziklai, J</au><au>Takahama, R</au><au>Tanida, K</au><au>Tannenbaum, M. J</au><au>Tomášek, M</au><au>Towell, R. S</au><au>Ueda, Y</au><au>Velkovska, J</au><au>Vrba, V</au><au>Woody, C. L</au><au>Wysocki, M</au><au>Xia, B</au><au>Yalcin, S</au><au>Younus, I</au><au>Zou, L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at $\sqrt{s}=510$ GeV in $\vec{p}+\vec{p}$ Collisions</atitle><date>2022-02-16</date><risdate>2022</risdate><abstract>We present measurements of the cross section and double-helicity asymmetry
$A_{LL}$ of direct-photon production in $\vec{p}+\vec{p}$ collisions at
$\sqrt{s}=510$ GeV. The measurements have been performed at midrapidity
($|\eta|<0.25$) 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 strong
force at leading order. Therefore, at $\sqrt{s}=510$ 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.</abstract><doi>10.48550/arxiv.2202.08158</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | DOI: 10.48550/arxiv.2202.08158 |
| ispartof | |
| issn | |
| language | eng |
| recordid | cdi_arxiv_primary_2202_08158 |
| source | arXiv.org |
| subjects | Physics - High Energy Physics - Experiment Physics - Nuclear Experiment |
| title | Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at $\sqrt{s}=510$ GeV in $\vec{p}+\vec{p}$ Collisions |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-04T06%3A53%3A40IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-arxiv_GOX&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Measurement%20of%20Direct-Photon%20Cross%20Section%20and%20Double-Helicity%20Asymmetry%20at%20$%5Csqrt%7Bs%7D=510$%20GeV%20in%20$%5Cvec%7Bp%7D+%5Cvec%7Bp%7D$%20Collisions&rft.au=PHENIX%20Collaboration&rft.date=2022-02-16&rft_id=info:doi/10.48550/arxiv.2202.08158&rft_dat=%3Carxiv_GOX%3E2202_08158%3C/arxiv_GOX%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |