Mechanism of near-threshold production of the eta meson
Measurements of the analyzing power for the pp-->pp eta reaction have been performed at excess energies of Q=10 and 36 MeV. The determined analyzing power is essentially consistent with zero, implying dominance of the s wave at both excess energies. The angular dependence of the analyzing power,...
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| Veröffentlicht in: | Physical review letters 2007-03, Vol.98 (12), p.122003-122003, Article 122003 |
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| container_title | Physical review letters |
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| creator | Czyzykiewicz, R Moskal, P Adam, H-H Budzanowski, A Czerwiński, E Gil, D Grzonka, D Hodana, M Janusz, M Jarczyk, L Kamys, B Khoukaz, A Kilian, K Klaja, P Lorentz, B Oelert, W Piskor-Ignatowicz, C Przerwa, J Rejdych, B Ritman, J Sefzick, T Siemaszko, M Smyrski, J Täschner, A Ulbrich, K Winter, P Wolke, M Wüstner, P Zipper, W |
| description | Measurements of the analyzing power for the pp-->pp eta reaction have been performed at excess energies of Q=10 and 36 MeV. The determined analyzing power is essentially consistent with zero, implying dominance of the s wave at both excess energies. The angular dependence of the analyzing power, combined with the isospin dependence of the total cross section for the eta meson production in nucleon-nucleon collisions, reveal that the excitation of the nucleon to the S11(1535) resonance is predominantly due to the exchange of the pi meson between the colliding nucleons. |
| doi_str_mv | 10.1103/PhysRevLett.98.122003 |
| format | Article |
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The determined analyzing power is essentially consistent with zero, implying dominance of the s wave at both excess energies. The angular dependence of the analyzing power, combined with the isospin dependence of the total cross section for the eta meson production in nucleon-nucleon collisions, reveal that the excitation of the nucleon to the S11(1535) resonance is predominantly due to the exchange of the pi meson between the colliding nucleons.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.98.122003</identifier><identifier>PMID: 17501114</identifier><language>eng</language><publisher>United States</publisher><ispartof>Physical review letters, 2007-03, Vol.98 (12), p.122003-122003, Article 122003</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c307t-413f4f02e2e9e0e2fe16aaffae20c04bb6538567e1f69e114ca2fa4d2bb591fe3</citedby><cites>FETCH-LOGICAL-c307t-413f4f02e2e9e0e2fe16aaffae20c04bb6538567e1f69e114ca2fa4d2bb591fe3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,2874,2875,27922,27923</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17501114$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Czyzykiewicz, R</creatorcontrib><creatorcontrib>Moskal, P</creatorcontrib><creatorcontrib>Adam, H-H</creatorcontrib><creatorcontrib>Budzanowski, A</creatorcontrib><creatorcontrib>Czerwiński, E</creatorcontrib><creatorcontrib>Gil, D</creatorcontrib><creatorcontrib>Grzonka, D</creatorcontrib><creatorcontrib>Hodana, M</creatorcontrib><creatorcontrib>Janusz, M</creatorcontrib><creatorcontrib>Jarczyk, L</creatorcontrib><creatorcontrib>Kamys, B</creatorcontrib><creatorcontrib>Khoukaz, A</creatorcontrib><creatorcontrib>Kilian, K</creatorcontrib><creatorcontrib>Klaja, P</creatorcontrib><creatorcontrib>Lorentz, B</creatorcontrib><creatorcontrib>Oelert, W</creatorcontrib><creatorcontrib>Piskor-Ignatowicz, C</creatorcontrib><creatorcontrib>Przerwa, J</creatorcontrib><creatorcontrib>Rejdych, B</creatorcontrib><creatorcontrib>Ritman, J</creatorcontrib><creatorcontrib>Sefzick, T</creatorcontrib><creatorcontrib>Siemaszko, M</creatorcontrib><creatorcontrib>Smyrski, J</creatorcontrib><creatorcontrib>Täschner, A</creatorcontrib><creatorcontrib>Ulbrich, K</creatorcontrib><creatorcontrib>Winter, P</creatorcontrib><creatorcontrib>Wolke, M</creatorcontrib><creatorcontrib>Wüstner, P</creatorcontrib><creatorcontrib>Zipper, W</creatorcontrib><title>Mechanism of near-threshold production of the eta meson</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>Measurements of the analyzing power for the pp-->pp eta reaction have been performed at excess energies of Q=10 and 36 MeV. The determined analyzing power is essentially consistent with zero, implying dominance of the s wave at both excess energies. The angular dependence of the analyzing power, combined with the isospin dependence of the total cross section for the eta meson production in nucleon-nucleon collisions, reveal that the excitation of the nucleon to the S11(1535) resonance is predominantly due to the exchange of the pi meson between the colliding nucleons.</description><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNpNkN1Kw0AQhRdRbK0-gpIr71JndpNs9lKKVaGiiF4vm2SWRPJTdzdC396UFhQGBmbOmTl8jF0jLBFB3L3VO_9OPxsKYanyJXIOIE7YHEGqWCImp2w-TTBWAHLGLrz_AgDkWX7OZihTwEkzZ_KFytr0je-iwUY9GReH2pGvh7aKtm6oxjI0Q79fhpoiCibqyA_9JTuzpvV0dewL9rl--Fg9xZvXx-fV_SYuBcgQJyhsYoETJ0VA3BJmxlhriEMJSVFkqcjTTBLaTNGUqDTcmqTiRZEqtCQW7PZwd8ryPZIPumt8SW1rehpGryUkSompFiw9CEs3eO_I6q1rOuN2GkHviel_xLTK9YHY5Ls5PhiLjqo_1xGR-AVFcWp3</recordid><startdate>20070323</startdate><enddate>20070323</enddate><creator>Czyzykiewicz, R</creator><creator>Moskal, P</creator><creator>Adam, H-H</creator><creator>Budzanowski, A</creator><creator>Czerwiński, E</creator><creator>Gil, D</creator><creator>Grzonka, D</creator><creator>Hodana, M</creator><creator>Janusz, M</creator><creator>Jarczyk, L</creator><creator>Kamys, B</creator><creator>Khoukaz, A</creator><creator>Kilian, K</creator><creator>Klaja, P</creator><creator>Lorentz, B</creator><creator>Oelert, W</creator><creator>Piskor-Ignatowicz, C</creator><creator>Przerwa, J</creator><creator>Rejdych, B</creator><creator>Ritman, J</creator><creator>Sefzick, T</creator><creator>Siemaszko, M</creator><creator>Smyrski, J</creator><creator>Täschner, A</creator><creator>Ulbrich, K</creator><creator>Winter, P</creator><creator>Wolke, M</creator><creator>Wüstner, P</creator><creator>Zipper, W</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20070323</creationdate><title>Mechanism of near-threshold production of the eta meson</title><author>Czyzykiewicz, R ; 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| title | Mechanism of near-threshold production of the eta meson |
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