Inclusive production of the η and ω mesons in Z decays, and the muonic branching ratio of the ω
The inclusive production of the η and ω(782) mesons is measured in the π+π−π0 decay mode in hadronic Z decays and compared to model predictions. The analysis is based on 4 million hadronic Z decays recorded by the ALEPH detector between 1991 and 1995. The η production rate for xp=pmeson/pbeam>0.1...
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| Veröffentlicht in: | Physics letters. B 2002-02, Vol.528 (1-2), p.19-33 |
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| creator | Merle, E. Boix, G. Fernandez, E. Ruiz, H. Colaleo, A. de Palma, M. Maggi, M. Nuzzo, S. Ruggieri, F. Silvestris, L. Tempesta, P. Xie, Y. Zhang, J. Zhang, L. Azzurri, P. Buchmüller, O. Drevermann, H. Frank, M. Gianotti, F. Jost, B. Mato, P. Ranjard, F. Rolandi, L. Ward, J. Gay, P. Jousset, J. Pallin, D. Hansen, J.R. Hansen, P.H. Nilsson, B.S. Markou, C. Brient, J.-C. Verderi, M. Focardi, E. Bencivenni, G. Mannocchi, G. Spagnolo, P. Halley, A. O'Shea, V. Raine, C. Thompson, A.S. Hansper, G. Hepp, V. Werner, S. Wunsch, M. Binnie, D.M. Sedgbeer, J.K. Thompson, J.C. Girtler, P. Kuhn, D. Bouhova-Thacker, E. Finch, A.J. Hughes, G. Jones, R.W.L. Renk, B. Sander, H.-G. Wachsmuth, H. Carr, J. Coyle, P. Leroy, O. Rousseau, D. Talby, M. Mannert, C. Settles, R. Davier, M. Duflot, L. Foà, L. Giassi, A. Ligabue, F. Messineo, A. Sanguinetti, G. Tenchini, R. Venturi, A. Cowan, G. Green, M.G. Misiejuk, A. Strong, J.A. von Wimmersperg-Toeller, J.H. Tomalin, I.R. Colas, P. Emery, S. Lemaire, M.-C. Renardy, J.-F. Schwindling, J. Konstantinidis, N. Taylor, G. Beddall, A. Combley, F. Thompson, L.F. Böhrer, A. Prange, G. Armstrong, S.R. Berkelman, K. Gao, Y. Jin, S. Kile, J. Nielsen, J. Pan, Y.B. Wu, J. Wu, Sau Lan |
| description | The inclusive production of the η and ω(782) mesons is measured in the π+π−π0 decay mode in hadronic Z decays and compared to model predictions. The analysis is based on 4 million hadronic Z decays recorded by the ALEPH detector between 1991 and 1995. The η production rate for xp=pmeson/pbeam>0.10 is found to be 0.355±0.011stat±0.024sys per event, and the ω production rate for xp>0.05 is measured as 0.585±0.019stat±0.033sys per event. The branching ratio for ω→μ+μ− is investigated. A total of 18.1±5.9 events are observed, from which the muonic branching ratio is measured for the first time to be BR(ω→μ+μ−)=(9.0±2.9stat±1.1sys)×10−5. |
| doi_str_mv | 10.1016/S0370-2693(02)01220-0 |
| format | Article |
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The analysis is based on 4 million hadronic Z decays recorded by the ALEPH detector between 1991 and 1995. The η production rate for xp=pmeson/pbeam>0.10 is found to be 0.355±0.011stat±0.024sys per event, and the ω production rate for xp>0.05 is measured as 0.585±0.019stat±0.033sys per event. The branching ratio for ω→μ+μ− is investigated. A total of 18.1±5.9 events are observed, from which the muonic branching ratio is measured for the first time to be BR(ω→μ+μ−)=(9.0±2.9stat±1.1sys)×10−5.</description><identifier>ISSN: 0370-2693</identifier><identifier>EISSN: 1873-2445</identifier><identifier>DOI: 10.1016/S0370-2693(02)01220-0</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>High Energy Physics - Experiment ; Physics</subject><ispartof>Physics letters. 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Lan</creatorcontrib><creatorcontrib>ALEPH Collaboration</creatorcontrib><title>Inclusive production of the η and ω mesons in Z decays, and the muonic branching ratio of the ω</title><title>Physics letters. B</title><description>The inclusive production of the η and ω(782) mesons is measured in the π+π−π0 decay mode in hadronic Z decays and compared to model predictions. The analysis is based on 4 million hadronic Z decays recorded by the ALEPH detector between 1991 and 1995. The η production rate for xp=pmeson/pbeam>0.10 is found to be 0.355±0.011stat±0.024sys per event, and the ω production rate for xp>0.05 is measured as 0.585±0.019stat±0.033sys per event. The branching ratio for ω→μ+μ− is investigated. A total of 18.1±5.9 events are observed, from which the muonic branching ratio is measured for the first time to be BR(ω→μ+μ−)=(9.0±2.9stat±1.1sys)×10−5.</description><subject>High Energy Physics - Experiment</subject><subject>Physics</subject><issn>0370-2693</issn><issn>1873-2445</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNqFkEFOAjEUhhujiYgewaRLjY6-ttCZrgwhKiQkLtSNm6Z03kgNdEg7kHAEbsEt3HMAuZIMGLau3uL9_5f8HyGXDO4YMHn_CiKFhEslroBfA-McEjgiDZalIuGtVvuYNA6RU3IW4xcAsDbIBin63o5n0c2RTkOZz2zlSk_LglYjXK9-vqnx-Xq1WdIJxtJH6vx69UFztGYRb-tnHaSTWemdpcNgvB05_0mD2XIOmM3ynJwUZhzx4u82yfvT41u3lwxenvvdziCxQvEqkWlmRCFMnnKEFJkdGsyNTJmVkreUypQQLYTC8hQ4KolYDKXiaNMiy5hRoklu9tyRGetpcBMTFro0Tvc6A-08nwpdT2cM1Jxt0-192oYyxoDFocJA12r1Tq2uvWngeqdWw7b3sO_hdsrcYdDROvQWcxfQVjov3T-EXzI6hLo</recordid><startdate>20020228</startdate><enddate>20020228</enddate><creator>Merle, E.</creator><creator>Boix, G.</creator><creator>Fernandez, 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B.V</general><general>Elsevier</general><scope>6I.</scope><scope>AAFTH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0001-7292-9271</orcidid><orcidid>https://orcid.org/0000-0001-7613-8063</orcidid><orcidid>https://orcid.org/0000-0002-1297-8925</orcidid><orcidid>https://orcid.org/0000-0002-5732-4343</orcidid><orcidid>https://orcid.org/0000-0002-9963-8359</orcidid><orcidid>https://orcid.org/0000-0003-3332-2615</orcidid><orcidid>https://orcid.org/0000-0002-9930-9299</orcidid><orcidid>https://orcid.org/0000-0002-8859-5453</orcidid><orcidid>https://orcid.org/0000-0002-2589-240X</orcidid></search><sort><creationdate>20020228</creationdate><title>Inclusive production of the η and ω mesons in Z decays, and the muonic branching ratio of the ω</title><author>Merle, E. ; Boix, G. ; Fernandez, E. ; Ruiz, H. ; Colaleo, A. ; de Palma, M. ; Maggi, M. ; Nuzzo, S. ; Ruggieri, F. ; Silvestris, L. ; Tempesta, P. ; Xie, Y. ; Zhang, J. ; Zhang, L. ; Azzurri, P. ; Buchmüller, O. ; Drevermann, H. ; Frank, M. ; Gianotti, F. ; Jost, B. ; Mato, P. ; Ranjard, F. ; Rolandi, L. ; Ward, J. ; Gay, P. ; Jousset, J. ; Pallin, D. ; Hansen, J.R. ; Hansen, P.H. ; Nilsson, B.S. ; Markou, C. ; Brient, J.-C. ; Verderi, M. ; Focardi, E. ; Bencivenni, G. ; Mannocchi, G. ; Spagnolo, P. ; Halley, A. ; O'Shea, V. ; Raine, C. ; Thompson, A.S. ; Hansper, G. ; Hepp, V. ; Werner, S. ; Wunsch, M. ; Binnie, D.M. ; Sedgbeer, J.K. ; Thompson, J.C. ; Girtler, P. ; Kuhn, D. ; Bouhova-Thacker, E. ; Finch, A.J. ; Hughes, G. ; Jones, R.W.L. ; Renk, B. ; Sander, H.-G. ; Wachsmuth, H. ; Carr, J. ; Coyle, P. ; Leroy, O. ; Rousseau, D. ; Talby, M. ; Mannert, C. ; Settles, R. ; Davier, M. ; Duflot, L. ; Foà, L. ; Giassi, A. ; Ligabue, F. ; Messineo, A. ; Sanguinetti, G. ; Tenchini, R. ; Venturi, A. ; Cowan, G. ; Green, M.G. ; Misiejuk, A. ; Strong, J.A. ; von Wimmersperg-Toeller, J.H. ; Tomalin, I.R. ; Colas, P. ; Emery, S. ; Lemaire, M.-C. ; Renardy, J.-F. ; Schwindling, J. ; Konstantinidis, N. ; Taylor, G. ; Beddall, A. ; Combley, F. ; Thompson, L.F. ; Böhrer, A. ; Prange, G. ; Armstrong, S.R. ; Berkelman, K. ; Gao, Y. ; Jin, S. ; Kile, J. ; Nielsen, J. ; Pan, Y.B. ; Wu, J. ; Wu, Sau Lan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-678a3f3ad72e07e1cbaeda671c66249989334e0fc2702e96eefb692ec7f881a93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>High Energy Physics - Experiment</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Merle, E.</creatorcontrib><creatorcontrib>Boix, G.</creatorcontrib><creatorcontrib>Fernandez, E.</creatorcontrib><creatorcontrib>Ruiz, H.</creatorcontrib><creatorcontrib>Colaleo, A.</creatorcontrib><creatorcontrib>de Palma, M.</creatorcontrib><creatorcontrib>Maggi, M.</creatorcontrib><creatorcontrib>Nuzzo, S.</creatorcontrib><creatorcontrib>Ruggieri, F.</creatorcontrib><creatorcontrib>Silvestris, L.</creatorcontrib><creatorcontrib>Tempesta, P.</creatorcontrib><creatorcontrib>Xie, Y.</creatorcontrib><creatorcontrib>Zhang, J.</creatorcontrib><creatorcontrib>Zhang, L.</creatorcontrib><creatorcontrib>Azzurri, P.</creatorcontrib><creatorcontrib>Buchmüller, O.</creatorcontrib><creatorcontrib>Drevermann, H.</creatorcontrib><creatorcontrib>Frank, M.</creatorcontrib><creatorcontrib>Gianotti, F.</creatorcontrib><creatorcontrib>Jost, B.</creatorcontrib><creatorcontrib>Mato, P.</creatorcontrib><creatorcontrib>Ranjard, F.</creatorcontrib><creatorcontrib>Rolandi, L.</creatorcontrib><creatorcontrib>Ward, J.</creatorcontrib><creatorcontrib>Gay, P.</creatorcontrib><creatorcontrib>Jousset, J.</creatorcontrib><creatorcontrib>Pallin, D.</creatorcontrib><creatorcontrib>Hansen, J.R.</creatorcontrib><creatorcontrib>Hansen, P.H.</creatorcontrib><creatorcontrib>Nilsson, B.S.</creatorcontrib><creatorcontrib>Markou, C.</creatorcontrib><creatorcontrib>Brient, J.-C.</creatorcontrib><creatorcontrib>Verderi, M.</creatorcontrib><creatorcontrib>Focardi, E.</creatorcontrib><creatorcontrib>Bencivenni, G.</creatorcontrib><creatorcontrib>Mannocchi, G.</creatorcontrib><creatorcontrib>Spagnolo, P.</creatorcontrib><creatorcontrib>Halley, A.</creatorcontrib><creatorcontrib>O'Shea, V.</creatorcontrib><creatorcontrib>Raine, C.</creatorcontrib><creatorcontrib>Thompson, A.S.</creatorcontrib><creatorcontrib>Hansper, G.</creatorcontrib><creatorcontrib>Hepp, V.</creatorcontrib><creatorcontrib>Werner, S.</creatorcontrib><creatorcontrib>Wunsch, M.</creatorcontrib><creatorcontrib>Binnie, D.M.</creatorcontrib><creatorcontrib>Sedgbeer, J.K.</creatorcontrib><creatorcontrib>Thompson, J.C.</creatorcontrib><creatorcontrib>Girtler, P.</creatorcontrib><creatorcontrib>Kuhn, D.</creatorcontrib><creatorcontrib>Bouhova-Thacker, E.</creatorcontrib><creatorcontrib>Finch, A.J.</creatorcontrib><creatorcontrib>Hughes, G.</creatorcontrib><creatorcontrib>Jones, R.W.L.</creatorcontrib><creatorcontrib>Renk, B.</creatorcontrib><creatorcontrib>Sander, H.-G.</creatorcontrib><creatorcontrib>Wachsmuth, H.</creatorcontrib><creatorcontrib>Carr, J.</creatorcontrib><creatorcontrib>Coyle, P.</creatorcontrib><creatorcontrib>Leroy, O.</creatorcontrib><creatorcontrib>Rousseau, D.</creatorcontrib><creatorcontrib>Talby, M.</creatorcontrib><creatorcontrib>Mannert, C.</creatorcontrib><creatorcontrib>Settles, R.</creatorcontrib><creatorcontrib>Davier, M.</creatorcontrib><creatorcontrib>Duflot, L.</creatorcontrib><creatorcontrib>Foà, L.</creatorcontrib><creatorcontrib>Giassi, A.</creatorcontrib><creatorcontrib>Ligabue, F.</creatorcontrib><creatorcontrib>Messineo, A.</creatorcontrib><creatorcontrib>Sanguinetti, G.</creatorcontrib><creatorcontrib>Tenchini, R.</creatorcontrib><creatorcontrib>Venturi, A.</creatorcontrib><creatorcontrib>Cowan, G.</creatorcontrib><creatorcontrib>Green, M.G.</creatorcontrib><creatorcontrib>Misiejuk, A.</creatorcontrib><creatorcontrib>Strong, J.A.</creatorcontrib><creatorcontrib>von Wimmersperg-Toeller, J.H.</creatorcontrib><creatorcontrib>Tomalin, I.R.</creatorcontrib><creatorcontrib>Colas, P.</creatorcontrib><creatorcontrib>Emery, S.</creatorcontrib><creatorcontrib>Lemaire, M.-C.</creatorcontrib><creatorcontrib>Renardy, J.-F.</creatorcontrib><creatorcontrib>Schwindling, J.</creatorcontrib><creatorcontrib>Konstantinidis, N.</creatorcontrib><creatorcontrib>Taylor, G.</creatorcontrib><creatorcontrib>Beddall, A.</creatorcontrib><creatorcontrib>Combley, F.</creatorcontrib><creatorcontrib>Thompson, L.F.</creatorcontrib><creatorcontrib>Böhrer, A.</creatorcontrib><creatorcontrib>Prange, G.</creatorcontrib><creatorcontrib>Armstrong, S.R.</creatorcontrib><creatorcontrib>Berkelman, K.</creatorcontrib><creatorcontrib>Gao, Y.</creatorcontrib><creatorcontrib>Jin, S.</creatorcontrib><creatorcontrib>Kile, J.</creatorcontrib><creatorcontrib>Nielsen, J.</creatorcontrib><creatorcontrib>Pan, Y.B.</creatorcontrib><creatorcontrib>Wu, J.</creatorcontrib><creatorcontrib>Wu, Sau Lan</creatorcontrib><creatorcontrib>ALEPH Collaboration</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Physics letters. B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Merle, E.</au><au>Boix, G.</au><au>Fernandez, E.</au><au>Ruiz, H.</au><au>Colaleo, A.</au><au>de Palma, M.</au><au>Maggi, M.</au><au>Nuzzo, S.</au><au>Ruggieri, F.</au><au>Silvestris, L.</au><au>Tempesta, P.</au><au>Xie, Y.</au><au>Zhang, J.</au><au>Zhang, L.</au><au>Azzurri, P.</au><au>Buchmüller, O.</au><au>Drevermann, H.</au><au>Frank, M.</au><au>Gianotti, F.</au><au>Jost, B.</au><au>Mato, P.</au><au>Ranjard, F.</au><au>Rolandi, L.</au><au>Ward, J.</au><au>Gay, P.</au><au>Jousset, J.</au><au>Pallin, D.</au><au>Hansen, J.R.</au><au>Hansen, P.H.</au><au>Nilsson, B.S.</au><au>Markou, C.</au><au>Brient, J.-C.</au><au>Verderi, M.</au><au>Focardi, E.</au><au>Bencivenni, G.</au><au>Mannocchi, G.</au><au>Spagnolo, P.</au><au>Halley, A.</au><au>O'Shea, V.</au><au>Raine, C.</au><au>Thompson, A.S.</au><au>Hansper, G.</au><au>Hepp, V.</au><au>Werner, S.</au><au>Wunsch, M.</au><au>Binnie, D.M.</au><au>Sedgbeer, J.K.</au><au>Thompson, J.C.</au><au>Girtler, P.</au><au>Kuhn, D.</au><au>Bouhova-Thacker, E.</au><au>Finch, A.J.</au><au>Hughes, G.</au><au>Jones, R.W.L.</au><au>Renk, B.</au><au>Sander, H.-G.</au><au>Wachsmuth, H.</au><au>Carr, J.</au><au>Coyle, P.</au><au>Leroy, O.</au><au>Rousseau, D.</au><au>Talby, M.</au><au>Mannert, C.</au><au>Settles, R.</au><au>Davier, M.</au><au>Duflot, L.</au><au>Foà, L.</au><au>Giassi, A.</au><au>Ligabue, F.</au><au>Messineo, A.</au><au>Sanguinetti, G.</au><au>Tenchini, R.</au><au>Venturi, A.</au><au>Cowan, G.</au><au>Green, M.G.</au><au>Misiejuk, A.</au><au>Strong, J.A.</au><au>von Wimmersperg-Toeller, J.H.</au><au>Tomalin, I.R.</au><au>Colas, P.</au><au>Emery, S.</au><au>Lemaire, M.-C.</au><au>Renardy, J.-F.</au><au>Schwindling, J.</au><au>Konstantinidis, N.</au><au>Taylor, G.</au><au>Beddall, A.</au><au>Combley, F.</au><au>Thompson, L.F.</au><au>Böhrer, A.</au><au>Prange, G.</au><au>Armstrong, S.R.</au><au>Berkelman, K.</au><au>Gao, Y.</au><au>Jin, S.</au><au>Kile, J.</au><au>Nielsen, J.</au><au>Pan, Y.B.</au><au>Wu, J.</au><au>Wu, Sau Lan</au><aucorp>ALEPH Collaboration</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Inclusive production of the η and ω mesons in Z decays, and the muonic branching ratio of the ω</atitle><jtitle>Physics letters. B</jtitle><date>2002-02-28</date><risdate>2002</risdate><volume>528</volume><issue>1-2</issue><spage>19</spage><epage>33</epage><pages>19-33</pages><issn>0370-2693</issn><eissn>1873-2445</eissn><abstract>The inclusive production of the η and ω(782) mesons is measured in the π+π−π0 decay mode in hadronic Z decays and compared to model predictions. The analysis is based on 4 million hadronic Z decays recorded by the ALEPH detector between 1991 and 1995. The η production rate for xp=pmeson/pbeam>0.10 is found to be 0.355±0.011stat±0.024sys per event, and the ω production rate for xp>0.05 is measured as 0.585±0.019stat±0.033sys per event. The branching ratio for ω→μ+μ− is investigated. A total of 18.1±5.9 events are observed, from which the muonic branching ratio is measured for the first time to be BR(ω→μ+μ−)=(9.0±2.9stat±1.1sys)×10−5.</abstract><pub>Elsevier B.V</pub><doi>10.1016/S0370-2693(02)01220-0</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0001-7292-9271</orcidid><orcidid>https://orcid.org/0000-0001-7613-8063</orcidid><orcidid>https://orcid.org/0000-0002-1297-8925</orcidid><orcidid>https://orcid.org/0000-0002-5732-4343</orcidid><orcidid>https://orcid.org/0000-0002-9963-8359</orcidid><orcidid>https://orcid.org/0000-0003-3332-2615</orcidid><orcidid>https://orcid.org/0000-0002-9930-9299</orcidid><orcidid>https://orcid.org/0000-0002-8859-5453</orcidid><orcidid>https://orcid.org/0000-0002-2589-240X</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0370-2693 |
| ispartof | Physics letters. B, 2002-02, Vol.528 (1-2), p.19-33 |
| issn | 0370-2693 1873-2445 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_in2p3_00011109v1 |
| source | Elsevier ScienceDirect Journals |
| subjects | High Energy Physics - Experiment Physics |
| title | Inclusive production of the η and ω mesons in Z decays, and the muonic branching ratio of the ω |
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