Observation of Upsilon(2S)-->etaUpsilon(1S) and search for related transitions

We report the first observation of Upsilon(2S)-->etaUpsilon(1S), with a branching fraction B=(2.1(-0.6)+0.7(stat)+/-0.3(syst)) x 10(-4) and a statistical significance 5.3sigma. Data were acquired with the CLEO III detector at the CESR e+e(-) symmetric collider. This is the first process observed...

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Veröffentlicht in:	Physical review letters 2008-11, Vol.101 (19), p.192001-192001
Hauptverfasser:	He, Q, Insler, J, Muramatsu, H, Park, C S, Thorndike, E H, Yang, F, Artuso, M, Blusk, S, Khalil, S, Li, J, Mountain, R, Nisar, S, Randrianarivony, K, Sultana, N, Skwarnicki, T, Stone, S, Wang, J C, Zhang, L M, Bonvicini, G, Cinabro, D, Dubrovin, M, Lincoln, A, Naik, P, Rademacker, J, Asner, D M, Edwards, K W, Reed, J, Briere, R A, Ferguson, T, Tatishvili, G, Vogel, H, Watkins, M E, Rosner, J L, Alexander, J P, Cassel, D G, Duboscq, J E, Ehrlich, R, Fields, L, Galik, R S, Gibbons, L, Gray, R, Gray, S W, Hartill, D L, Heltsley, B K, Hertz, D, Hunt, J M, Kandaswamy, J, Kreinick, D L, Kuznetsov, V E, Ledoux, J, Mahlke-Krüger, H, Mohapatra, D, Onyisi, P U E, Patterson, J R, Peterson, D, Riley, D, Ryd, A, Sadoff, A J, Shi, X, Stroiney, S, Sun, W M, Wilksen, T, Athar, S B, Patel, R, Yelton, J, Rubin, P, Eisenstein, B I, Karliner, I, Mehrabyan, S, Lowrey, N, Selen, M, White, E J, Wiss, J, Mitchell, R E, Shepherd, M R, Besson, D, Pedlar, T K, Xavier, J V, Cronin-Hennessy, D, Gao, K Y, Hietala, J, Kubota, Y, Klein, T, Lang, B W, Poling, R, Scott, A W, Zweber, P, Dobbs, S, Metreveli, Z, Seth, K K, Tomaradze, A, Libby, J, Martin, L, Powell, A, Wilkinson, G, Ecklund, K M, Love, W, Savinov, V, Mendez, H, Ge, J Y
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container_end_page	192001
container_issue	19
container_start_page	192001
container_title	Physical review letters
container_volume	101
creator	He, Q Insler, J Muramatsu, H Park, C S Thorndike, E H Yang, F Artuso, M Blusk, S Khalil, S Li, J Mountain, R Nisar, S Randrianarivony, K Sultana, N Skwarnicki, T Stone, S Wang, J C Zhang, L M Bonvicini, G Cinabro, D Dubrovin, M Lincoln, A Naik, P Rademacker, J Asner, D M Edwards, K W Reed, J Briere, R A Ferguson, T Tatishvili, G Vogel, H Watkins, M E Rosner, J L Alexander, J P Cassel, D G Duboscq, J E Ehrlich, R Fields, L Galik, R S Gibbons, L Gray, R Gray, S W Hartill, D L Heltsley, B K Hertz, D Hunt, J M Kandaswamy, J Kreinick, D L Kuznetsov, V E Ledoux, J Mahlke-Krüger, H Mohapatra, D Onyisi, P U E Patterson, J R Peterson, D Riley, D Ryd, A Sadoff, A J Shi, X Stroiney, S Sun, W M Wilksen, T Athar, S B Patel, R Yelton, J Rubin, P Eisenstein, B I Karliner, I Mehrabyan, S Lowrey, N Selen, M White, E J Wiss, J Mitchell, R E Shepherd, M R Besson, D Pedlar, T K Xavier, J V Cronin-Hennessy, D Gao, K Y Hietala, J Kubota, Y Klein, T Lang, B W Poling, R Scott, A W Zweber, P Dobbs, S Metreveli, Z Seth, K K Tomaradze, A Libby, J Martin, L Powell, A Wilkinson, G Ecklund, K M Love, W Savinov, V Mendez, H Ge, J Y
description	We report the first observation of Upsilon(2S)-->etaUpsilon(1S), with a branching fraction B=(2.1(-0.6)+0.7(stat)+/-0.3(syst)) x 10(-4) and a statistical significance 5.3sigma. Data were acquired with the CLEO III detector at the CESR e+e(-) symmetric collider. This is the first process observed involving a b-quark spin flip. For related transitions, 90% confidence limits in units of 10(-4) are B(Upsilon(2S)-->pi0Upsilon(1S)) < 1.8, B(Upsilon(3S)-->etaUpsilon(1S)) < 1.8, B(Upsilon(3S)-->pi0Upsilon(1S)) < 0.7, and B(Upsilon(3S)-->pi0Upsilon(2S)) < 5.1.
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Data were acquired with the CLEO III detector at the CESR e+e(-) symmetric collider. This is the first process observed involving a b-quark spin flip. For related transitions, 90% confidence limits in units of 10(-4) are B(Upsilon(2S)-->pi0Upsilon(1S)) < 1.8, B(Upsilon(3S)-->etaUpsilon(1S)) < 1.8, B(Upsilon(3S)-->pi0Upsilon(1S)) < 0.7, and B(Upsilon(3S)-->pi0Upsilon(2S)) < 5.1.</description><identifier>ISSN: 0031-9007</identifier><identifier>PMID: 19113261</identifier><language>eng</language><publisher>United States</publisher><ispartof>Physical review letters, 2008-11, Vol.101 (19), p.192001-192001</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19113261$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>He, Q</creatorcontrib><creatorcontrib>Insler, 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S</creatorcontrib><creatorcontrib>Lowrey, N</creatorcontrib><creatorcontrib>Selen, M</creatorcontrib><creatorcontrib>White, E J</creatorcontrib><creatorcontrib>Wiss, J</creatorcontrib><creatorcontrib>Mitchell, R E</creatorcontrib><creatorcontrib>Shepherd, M R</creatorcontrib><creatorcontrib>Besson, D</creatorcontrib><creatorcontrib>Pedlar, T K</creatorcontrib><creatorcontrib>Xavier, J V</creatorcontrib><creatorcontrib>Cronin-Hennessy, D</creatorcontrib><creatorcontrib>Gao, K Y</creatorcontrib><creatorcontrib>Hietala, J</creatorcontrib><creatorcontrib>Kubota, Y</creatorcontrib><creatorcontrib>Klein, T</creatorcontrib><creatorcontrib>Lang, B W</creatorcontrib><creatorcontrib>Poling, R</creatorcontrib><creatorcontrib>Scott, A W</creatorcontrib><creatorcontrib>Zweber, P</creatorcontrib><creatorcontrib>Dobbs, S</creatorcontrib><creatorcontrib>Metreveli, Z</creatorcontrib><creatorcontrib>Seth, K K</creatorcontrib><creatorcontrib>Tomaradze, A</creatorcontrib><creatorcontrib>Libby, 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Data were acquired with the CLEO III detector at the CESR e+e(-) symmetric collider. This is the first process observed involving a b-quark spin flip. For related transitions, 90% confidence limits in units of 10(-4) are B(Upsilon(2S)-->pi0Upsilon(1S)) < 1.8, B(Upsilon(3S)-->etaUpsilon(1S)) < 1.8, B(Upsilon(3S)-->pi0Upsilon(1S)) < 0.7, and B(Upsilon(3S)-->pi0Upsilon(2S)) < 5.1.</description><issn>0031-9007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNo1kM1KxDAYRbNQnHH0FSQrcRaB_DVtN4IM_sHgLGZcl6_JF6y0TU1awbe34szqwuVwuNwzsuRcCVZyni_IZUqfnHMhTXFBFqIUQkkjluRtVyeM3zA2oafB0_chNW3o7-R-zdg9jnAqxH5NoXc0IUT7QX2INGILIzo6RuhT82dIV-TcQ5vw-pgrcnh6PGxe2Hb3_Lp52LIh04IZKy0W2lglZAFSZcrIwmcut5YrWdfgPPIZMjKvvbNzb7RWQgE4Pc_O1Irc_muHGL4mTGPVNcli20KPYUqVKUupTWFm8OYITnWHrhpi00H8qU4HqF-Rv1U9</recordid><startdate>20081107</startdate><enddate>20081107</enddate><creator>He, Q</creator><creator>Insler, J</creator><creator>Muramatsu, H</creator><creator>Park, C S</creator><creator>Thorndike, E H</creator><creator>Yang, F</creator><creator>Artuso, M</creator><creator>Blusk, 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R</creatorcontrib><creatorcontrib>Peterson, D</creatorcontrib><creatorcontrib>Riley, D</creatorcontrib><creatorcontrib>Ryd, A</creatorcontrib><creatorcontrib>Sadoff, A J</creatorcontrib><creatorcontrib>Shi, X</creatorcontrib><creatorcontrib>Stroiney, S</creatorcontrib><creatorcontrib>Sun, W M</creatorcontrib><creatorcontrib>Wilksen, T</creatorcontrib><creatorcontrib>Athar, S B</creatorcontrib><creatorcontrib>Patel, R</creatorcontrib><creatorcontrib>Yelton, J</creatorcontrib><creatorcontrib>Rubin, P</creatorcontrib><creatorcontrib>Eisenstein, B I</creatorcontrib><creatorcontrib>Karliner, I</creatorcontrib><creatorcontrib>Mehrabyan, S</creatorcontrib><creatorcontrib>Lowrey, N</creatorcontrib><creatorcontrib>Selen, M</creatorcontrib><creatorcontrib>White, E J</creatorcontrib><creatorcontrib>Wiss, J</creatorcontrib><creatorcontrib>Mitchell, R E</creatorcontrib><creatorcontrib>Shepherd, M R</creatorcontrib><creatorcontrib>Besson, D</creatorcontrib><creatorcontrib>Pedlar, T K</creatorcontrib><creatorcontrib>Xavier, J V</creatorcontrib><creatorcontrib>Cronin-Hennessy, D</creatorcontrib><creatorcontrib>Gao, K Y</creatorcontrib><creatorcontrib>Hietala, J</creatorcontrib><creatorcontrib>Kubota, Y</creatorcontrib><creatorcontrib>Klein, T</creatorcontrib><creatorcontrib>Lang, B W</creatorcontrib><creatorcontrib>Poling, R</creatorcontrib><creatorcontrib>Scott, A W</creatorcontrib><creatorcontrib>Zweber, P</creatorcontrib><creatorcontrib>Dobbs, S</creatorcontrib><creatorcontrib>Metreveli, Z</creatorcontrib><creatorcontrib>Seth, K K</creatorcontrib><creatorcontrib>Tomaradze, A</creatorcontrib><creatorcontrib>Libby, J</creatorcontrib><creatorcontrib>Martin, L</creatorcontrib><creatorcontrib>Powell, A</creatorcontrib><creatorcontrib>Wilkinson, G</creatorcontrib><creatorcontrib>Ecklund, K M</creatorcontrib><creatorcontrib>Love, W</creatorcontrib><creatorcontrib>Savinov, V</creatorcontrib><creatorcontrib>Mendez, H</creatorcontrib><creatorcontrib>Ge, J Y</creatorcontrib><creatorcontrib>CLEO Collaboration</creatorcontrib><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>He, Q</au><au>Insler, J</au><au>Muramatsu, H</au><au>Park, C S</au><au>Thorndike, E H</au><au>Yang, F</au><au>Artuso, M</au><au>Blusk, S</au><au>Khalil, S</au><au>Li, J</au><au>Mountain, R</au><au>Nisar, S</au><au>Randrianarivony, K</au><au>Sultana, N</au><au>Skwarnicki, T</au><au>Stone, S</au><au>Wang, J C</au><au>Zhang, L M</au><au>Bonvicini, G</au><au>Cinabro, D</au><au>Dubrovin, M</au><au>Lincoln, A</au><au>Naik, P</au><au>Rademacker, J</au><au>Asner, D M</au><au>Edwards, K W</au><au>Reed, J</au><au>Briere, R A</au><au>Ferguson, T</au><au>Tatishvili, G</au><au>Vogel, H</au><au>Watkins, M E</au><au>Rosner, J L</au><au>Alexander, J P</au><au>Cassel, D G</au><au>Duboscq, J E</au><au>Ehrlich, R</au><au>Fields, L</au><au>Galik, R S</au><au>Gibbons, L</au><au>Gray, R</au><au>Gray, S W</au><au>Hartill, D L</au><au>Heltsley, B K</au><au>Hertz, D</au><au>Hunt, J M</au><au>Kandaswamy, J</au><au>Kreinick, D L</au><au>Kuznetsov, V E</au><au>Ledoux, J</au><au>Mahlke-Krüger, H</au><au>Mohapatra, D</au><au>Onyisi, P U E</au><au>Patterson, J R</au><au>Peterson, D</au><au>Riley, D</au><au>Ryd, A</au><au>Sadoff, A J</au><au>Shi, X</au><au>Stroiney, S</au><au>Sun, W M</au><au>Wilksen, T</au><au>Athar, S B</au><au>Patel, R</au><au>Yelton, J</au><au>Rubin, P</au><au>Eisenstein, B I</au><au>Karliner, I</au><au>Mehrabyan, S</au><au>Lowrey, N</au><au>Selen, M</au><au>White, E J</au><au>Wiss, J</au><au>Mitchell, R E</au><au>Shepherd, M R</au><au>Besson, D</au><au>Pedlar, T K</au><au>Xavier, J V</au><au>Cronin-Hennessy, D</au><au>Gao, K Y</au><au>Hietala, J</au><au>Kubota, Y</au><au>Klein, T</au><au>Lang, B W</au><au>Poling, R</au><au>Scott, A W</au><au>Zweber, P</au><au>Dobbs, S</au><au>Metreveli, Z</au><au>Seth, K K</au><au>Tomaradze, A</au><au>Libby, J</au><au>Martin, L</au><au>Powell, A</au><au>Wilkinson, G</au><au>Ecklund, K M</au><au>Love, W</au><au>Savinov, V</au><au>Mendez, H</au><au>Ge, J Y</au><aucorp>CLEO Collaboration</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of Upsilon(2S)-->etaUpsilon(1S) and search for related transitions</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2008-11-07</date><risdate>2008</risdate><volume>101</volume><issue>19</issue><spage>192001</spage><epage>192001</epage><pages>192001-192001</pages><issn>0031-9007</issn><abstract>We report the first observation of Upsilon(2S)-->etaUpsilon(1S), with a branching fraction B=(2.1(-0.6)+0.7(stat)+/-0.3(syst)) x 10(-4) and a statistical significance 5.3sigma. Data were acquired with the CLEO III detector at the CESR e+e(-) symmetric collider. This is the first process observed involving a b-quark spin flip. For related transitions, 90% confidence limits in units of 10(-4) are B(Upsilon(2S)-->pi0Upsilon(1S)) < 1.8, B(Upsilon(3S)-->etaUpsilon(1S)) < 1.8, B(Upsilon(3S)-->pi0Upsilon(1S)) < 0.7, and B(Upsilon(3S)-->pi0Upsilon(2S)) < 5.1.</abstract><cop>United States</cop><pmid>19113261</pmid><tpages>1</tpages></addata></record>
fulltext	fulltext
identifier	ISSN: 0031-9007
ispartof	Physical review letters, 2008-11, Vol.101 (19), p.192001-192001
issn	0031-9007
language	eng
recordid	cdi_proquest_miscellaneous_69924686
source	American Physical Society Journals
title	Observation of Upsilon(2S)-->etaUpsilon(1S) and search for related transitions
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