Single spin asymmetries in charged pion production from semi-inclusive deep inelastic scattering on a transversely polarized 3He Target at Q2 = 1.4-2.7 GeV2
We report the first measurement of target single spin asymmetries in the semi-inclusive (3)He(e,e'π(±))X reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of 0.16 < x < 0.35 with 1.4 < Q(2) < 2.7 GeV...
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| Veröffentlicht in: | Physical review letters 2011-08, Vol.107 (7), p.072003-072003 |
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| creator | Qian, X Allada, K Dutta, C Huang, J Katich, J Wang, Y Zhang, Y Aniol, K Annand, J R M Averett, T Benmokhtar, F Bertozzi, W Bradshaw, P C Bosted, P Camsonne, A Canan, M Cates, G D Chen, C Chen, J-P Chen, W Chirapatpimol, K Chudakov, E Cisbani, E Cornejo, J C Cusanno, F Dalton, M M Deconinck, W de Jager, C W De Leo, R Deng, X Deur, A Ding, H Dolph, P A M Dutta, D El Fassi, L Frullani, S Gao, H Garibaldi, F Gaskell, D Gilad, S Gilman, R Glamazdin, O Golge, S Guo, L Hamilton, D Hansen, O Higinbotham, D W Holmstrom, T Huang, M Ibrahim, H F Iodice, M Jiang, X Jin, G Jones, M K Kelleher, A Kim, W Kolarkar, A Korsch, W LeRose, J J Li, X Li, Y Lindgren, R Liyanage, N Long, E Lu, H-J Margaziotis, D J Markowitz, P Marrone, S McNulty, D Meziani, Z-E Michaels, R Moffit, B Camacho, C Muñoz Nanda, S Narayan, A Nelyubin, V Norum, B Oh, Y Osipenko, M Parno, D Peng, J C Phillips, S K Posik, M Puckett, A J R Qiang, Y Rakhman, A Ransome, R D Riordan, S Saha, A Sawatzky, B Schulte, E Shahinyan, A Shabestari, M H Sirca, S Stepanyan, S Subedi, R Sulkosky, V Tang, L-G Tobias, A Urciuoli, G M |
| description | We report the first measurement of target single spin asymmetries in the semi-inclusive (3)He(e,e'π(±))X reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of 0.16 < x < 0.35 with 1.4 < Q(2) < 2.7 GeV(2). The Collins and Sivers moments were extracted from the azimuthal angular dependence of the measured asymmetries. The π(±) Collins moments for (3)He are consistent with zero, except for the π(+) moment at x = 0.35, which deviates from zero by 2.3σ. While the π(-) Sivers moments are consistent with zero, the π(+) Sivers moments favor negative values. The neutron results were extracted using the nucleon effective polarization and measured cross section ratios of proton to (3)He, and are largely consistent with the predictions of phenomenological fits and quark model calculations. |
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The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of 0.16 < x < 0.35 with 1.4 < Q(2) < 2.7 GeV(2). The Collins and Sivers moments were extracted from the azimuthal angular dependence of the measured asymmetries. The π(±) Collins moments for (3)He are consistent with zero, except for the π(+) moment at x = 0.35, which deviates from zero by 2.3σ. While the π(-) Sivers moments are consistent with zero, the π(+) Sivers moments favor negative values. The neutron results were extracted using the nucleon effective polarization and measured cross section ratios of proton to (3)He, and are largely consistent with the predictions of phenomenological fits and quark model calculations.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>PMID: 21902386</identifier><language>eng</language><publisher>United States: American Physical Society</publisher><ispartof>Physical review letters, 2011-08, Vol.107 (7), p.072003-072003</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21902386$$D View this record in 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J</creatorcontrib><creatorcontrib>Markowitz, P</creatorcontrib><creatorcontrib>Marrone, S</creatorcontrib><creatorcontrib>McNulty, D</creatorcontrib><creatorcontrib>Meziani, Z-E</creatorcontrib><creatorcontrib>Michaels, R</creatorcontrib><creatorcontrib>Moffit, B</creatorcontrib><creatorcontrib>Camacho, C Muñoz</creatorcontrib><creatorcontrib>Nanda, S</creatorcontrib><creatorcontrib>Narayan, A</creatorcontrib><creatorcontrib>Nelyubin, V</creatorcontrib><creatorcontrib>Norum, B</creatorcontrib><creatorcontrib>Oh, Y</creatorcontrib><creatorcontrib>Osipenko, M</creatorcontrib><creatorcontrib>Parno, D</creatorcontrib><creatorcontrib>Peng, J C</creatorcontrib><creatorcontrib>Phillips, S K</creatorcontrib><creatorcontrib>Posik, M</creatorcontrib><creatorcontrib>Puckett, A J R</creatorcontrib><creatorcontrib>Qiang, Y</creatorcontrib><creatorcontrib>Rakhman, A</creatorcontrib><creatorcontrib>Ransome, R D</creatorcontrib><creatorcontrib>Riordan, S</creatorcontrib><creatorcontrib>Saha, A</creatorcontrib><creatorcontrib>Sawatzky, B</creatorcontrib><creatorcontrib>Schulte, E</creatorcontrib><creatorcontrib>Shahinyan, A</creatorcontrib><creatorcontrib>Shabestari, M H</creatorcontrib><creatorcontrib>Sirca, S</creatorcontrib><creatorcontrib>Stepanyan, S</creatorcontrib><creatorcontrib>Subedi, R</creatorcontrib><creatorcontrib>Sulkosky, V</creatorcontrib><creatorcontrib>Tang, L-G</creatorcontrib><creatorcontrib>Tobias, A</creatorcontrib><creatorcontrib>Urciuoli, G M</creatorcontrib><creatorcontrib>Jefferson Lab Hall A Collaboration</creatorcontrib><title>Single spin asymmetries in charged pion production from semi-inclusive deep inelastic scattering on a transversely polarized 3He Target at Q2 = 1.4-2.7 GeV2</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>We report the first measurement of target single spin asymmetries in the semi-inclusive (3)He(e,e'π(±))X reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of 0.16 < x < 0.35 with 1.4 < Q(2) < 2.7 GeV(2). The Collins and Sivers moments were extracted from the azimuthal angular dependence of the measured asymmetries. The π(±) Collins moments for (3)He are consistent with zero, except for the π(+) moment at x = 0.35, which deviates from zero by 2.3σ. While the π(-) Sivers moments are consistent with zero, the π(+) Sivers moments favor negative values. The neutron results were extracted using the nucleon effective polarization and measured cross section ratios of proton to (3)He, and are largely consistent with the predictions of phenomenological fits and quark model calculations.</description><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNo1kMtKBDEQRRtRnPHxC1K4cdVSSbqT9MKFiC8YEHFw22TSNRrpl0laGL_FjzWD46oenHuruHvZnKGqcsVYsZ_NEQXLK0Q1y45C-EBExqU-zGacVciFlvPs58X1by1BGF0PJmy6jqJ3FCCN9t34N2pgdEMPox-aycZtu_ZDB4E6l7vetlNwXwQN0Zg01JoQnYVgTYzkkzckgYHoTR--yAdqNzAOrfHuOzmLB4Ll9kgEE-GZwxWwyyLnlwru6ZWfZAdr0wY63dXjbHl3u7x5yBdP948314t80FzmpKqisRoLzotSlyVjCmUlhZSYlmgtX5fILFemQqMay0pMgxVrrSqzWhlxnJ3_2Q7p9zpYF8m-26HvycaaMcSSywRd_EEpiM-JQqw7Fyy1relpmEKttRZCyZIl8mxHTquOmnr0rjN-U_-HLn4BtiR9ng</recordid><startdate>20110812</startdate><enddate>20110812</enddate><creator>Qian, X</creator><creator>Allada, K</creator><creator>Dutta, 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T</creatorcontrib><creatorcontrib>Huang, M</creatorcontrib><creatorcontrib>Ibrahim, H F</creatorcontrib><creatorcontrib>Iodice, M</creatorcontrib><creatorcontrib>Jiang, X</creatorcontrib><creatorcontrib>Jin, G</creatorcontrib><creatorcontrib>Jones, M K</creatorcontrib><creatorcontrib>Kelleher, A</creatorcontrib><creatorcontrib>Kim, W</creatorcontrib><creatorcontrib>Kolarkar, A</creatorcontrib><creatorcontrib>Korsch, W</creatorcontrib><creatorcontrib>LeRose, J J</creatorcontrib><creatorcontrib>Li, X</creatorcontrib><creatorcontrib>Li, Y</creatorcontrib><creatorcontrib>Lindgren, R</creatorcontrib><creatorcontrib>Liyanage, N</creatorcontrib><creatorcontrib>Long, E</creatorcontrib><creatorcontrib>Lu, H-J</creatorcontrib><creatorcontrib>Margaziotis, D J</creatorcontrib><creatorcontrib>Markowitz, P</creatorcontrib><creatorcontrib>Marrone, S</creatorcontrib><creatorcontrib>McNulty, D</creatorcontrib><creatorcontrib>Meziani, Z-E</creatorcontrib><creatorcontrib>Michaels, R</creatorcontrib><creatorcontrib>Moffit, B</creatorcontrib><creatorcontrib>Camacho, C Muñoz</creatorcontrib><creatorcontrib>Nanda, S</creatorcontrib><creatorcontrib>Narayan, A</creatorcontrib><creatorcontrib>Nelyubin, V</creatorcontrib><creatorcontrib>Norum, B</creatorcontrib><creatorcontrib>Oh, Y</creatorcontrib><creatorcontrib>Osipenko, M</creatorcontrib><creatorcontrib>Parno, D</creatorcontrib><creatorcontrib>Peng, J C</creatorcontrib><creatorcontrib>Phillips, S K</creatorcontrib><creatorcontrib>Posik, M</creatorcontrib><creatorcontrib>Puckett, A J R</creatorcontrib><creatorcontrib>Qiang, Y</creatorcontrib><creatorcontrib>Rakhman, A</creatorcontrib><creatorcontrib>Ransome, R D</creatorcontrib><creatorcontrib>Riordan, S</creatorcontrib><creatorcontrib>Saha, A</creatorcontrib><creatorcontrib>Sawatzky, B</creatorcontrib><creatorcontrib>Schulte, E</creatorcontrib><creatorcontrib>Shahinyan, A</creatorcontrib><creatorcontrib>Shabestari, M H</creatorcontrib><creatorcontrib>Sirca, S</creatorcontrib><creatorcontrib>Stepanyan, S</creatorcontrib><creatorcontrib>Subedi, R</creatorcontrib><creatorcontrib>Sulkosky, V</creatorcontrib><creatorcontrib>Tang, L-G</creatorcontrib><creatorcontrib>Tobias, A</creatorcontrib><creatorcontrib>Urciuoli, G M</creatorcontrib><creatorcontrib>Jefferson Lab Hall A Collaboration</creatorcontrib><collection>PubMed</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qian, X</au><au>Allada, K</au><au>Dutta, C</au><au>Huang, J</au><au>Katich, J</au><au>Wang, Y</au><au>Zhang, Y</au><au>Aniol, K</au><au>Annand, J R M</au><au>Averett, T</au><au>Benmokhtar, F</au><au>Bertozzi, W</au><au>Bradshaw, P C</au><au>Bosted, P</au><au>Camsonne, A</au><au>Canan, M</au><au>Cates, G D</au><au>Chen, C</au><au>Chen, J-P</au><au>Chen, W</au><au>Chirapatpimol, K</au><au>Chudakov, E</au><au>Cisbani, E</au><au>Cornejo, J C</au><au>Cusanno, F</au><au>Dalton, M M</au><au>Deconinck, W</au><au>de Jager, C W</au><au>De Leo, R</au><au>Deng, X</au><au>Deur, A</au><au>Ding, H</au><au>Dolph, P A M</au><au>Dutta, D</au><au>El Fassi, L</au><au>Frullani, S</au><au>Gao, H</au><au>Garibaldi, F</au><au>Gaskell, D</au><au>Gilad, S</au><au>Gilman, R</au><au>Glamazdin, O</au><au>Golge, S</au><au>Guo, L</au><au>Hamilton, D</au><au>Hansen, O</au><au>Higinbotham, D W</au><au>Holmstrom, T</au><au>Huang, M</au><au>Ibrahim, H F</au><au>Iodice, M</au><au>Jiang, X</au><au>Jin, G</au><au>Jones, M K</au><au>Kelleher, A</au><au>Kim, W</au><au>Kolarkar, A</au><au>Korsch, W</au><au>LeRose, J J</au><au>Li, X</au><au>Li, Y</au><au>Lindgren, R</au><au>Liyanage, N</au><au>Long, E</au><au>Lu, H-J</au><au>Margaziotis, D J</au><au>Markowitz, P</au><au>Marrone, S</au><au>McNulty, D</au><au>Meziani, Z-E</au><au>Michaels, R</au><au>Moffit, B</au><au>Camacho, C Muñoz</au><au>Nanda, S</au><au>Narayan, A</au><au>Nelyubin, V</au><au>Norum, B</au><au>Oh, Y</au><au>Osipenko, M</au><au>Parno, D</au><au>Peng, J C</au><au>Phillips, S K</au><au>Posik, M</au><au>Puckett, A J R</au><au>Qiang, Y</au><au>Rakhman, A</au><au>Ransome, R D</au><au>Riordan, S</au><au>Saha, A</au><au>Sawatzky, B</au><au>Schulte, E</au><au>Shahinyan, A</au><au>Shabestari, M H</au><au>Sirca, S</au><au>Stepanyan, S</au><au>Subedi, R</au><au>Sulkosky, V</au><au>Tang, L-G</au><au>Tobias, A</au><au>Urciuoli, G M</au><aucorp>Jefferson Lab Hall A Collaboration</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Single spin asymmetries in charged pion production from semi-inclusive deep inelastic scattering on a transversely polarized 3He Target at Q2 = 1.4-2.7 GeV2</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2011-08-12</date><risdate>2011</risdate><volume>107</volume><issue>7</issue><spage>072003</spage><epage>072003</epage><pages>072003-072003</pages><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>We report the first measurement of target single spin asymmetries in the semi-inclusive (3)He(e,e'π(±))X reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of 0.16 < x < 0.35 with 1.4 < Q(2) < 2.7 GeV(2). The Collins and Sivers moments were extracted from the azimuthal angular dependence of the measured asymmetries. The π(±) Collins moments for (3)He are consistent with zero, except for the π(+) moment at x = 0.35, which deviates from zero by 2.3σ. While the π(-) Sivers moments are consistent with zero, the π(+) Sivers moments favor negative values. The neutron results were extracted using the nucleon effective polarization and measured cross section ratios of proton to (3)He, and are largely consistent with the predictions of phenomenological fits and quark model calculations.</abstract><cop>United States</cop><pub>American Physical Society</pub><pmid>21902386</pmid><tpages>1</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2011-08, Vol.107 (7), p.072003-072003 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1100526 |
| source | American Physical Society Journals |
| title | Single spin asymmetries in charged pion production from semi-inclusive deep inelastic scattering on a transversely polarized 3He Target at Q2 = 1.4-2.7 GeV2 |
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