Observation of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) and pi(+)pi(-)Upsilon(2S)
Observation of Upsilon(4S) decays to pi(+)pi(-)C and pi(+)pi(-)Upsilon(2S)We present the first measurement of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) based on a sample of 230 x 106(4S) mesons collected with the BABAR detector. We measure the product branching fractions Beta(Upsilon(4S) --> pi...
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| Veröffentlicht in: | Physical review letters 2006-06, Vol.96 (23), p.232001-232001, Article 232001 |
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| creator | Aubert, B Barate, R Bona, M Boutigny, D Couderc, F Karyotakis, Y Lees, J P Poireau, V Tisserand, V Zghiche, A Grauges, E Palano, A Chen, J C Qi, N D Rong, G Wang, P Zhu, Y S Eigen, G Ofte, I Stugu, B Abrams, G S Battaglia, M Brown, D N Button-Shafer, J Cahn, R N Charles, E Gill, M S Groysman, Y Jacobsen, R G Kadyk, J A Kerth, L T Kolomensky, Yu G Kukartsev, G Lynch, G Mir, L M Oddone, P J Orimoto, T J Pripstein, M Roe, N A Ronan, M T Wenzel, W A Barrett, M Ford, K E Harrison, T J Hart, A J Hawkes, C M Morgan, S E Watson, A T Goetzen, K Held, T Koch, H Lewandowski, B Pelizaeus, M Peters, K Schroeder, T Steinke, M Boyd, J T Burke, J P Cottingham, W N Walker, D Cuhadar-Donszelmann, T Fulsom, B G Hearty, C Knecht, N S Mattison, T S McKenna, J A Khan, A Kyberd, P Saleem, M Teodorescu, L Blinov, V E Bukin, A D Druzhinin, V P Golubev, V B Onuchin, A P Serednyakov, S I Skovpen, Yu I Solodov, E P Todyshev, K Yu Best, D S Bondioli, M Bruinsma, M Chao, M Curry, S Eschrich, I Kirkby, D Lankford, A J Lund, P Mandelkern, M Mommsen, R K Roethel, W Stoker, D P Abachi, S Buchanan, C Foulkes, S D Gary, J W Long, O Shen, B C Wang, K Zhang, L |
| description | Observation of Upsilon(4S) decays to pi(+)pi(-)C and pi(+)pi(-)Upsilon(2S)We present the first measurement of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) based on a sample of 230 x 106(4S) mesons collected with the BABAR detector. We measure the product branching fractions Beta(Upsilon(4S) --> pi(+)pi(-)Upsilon(1S)) x BetaUpsilon(1S) --> mu(+)mu(-) = (2.23 +/- 0.25(stat) +/- 0.27(syst))x 10(-6) and Beta(Upsilon(4S) --> pi(+)pi(-)Upsilon(2S) x Beta(Upsilon(2S) --> mu(+)mu(-))=(1.69 +/-0.26(stat) +/- 0.20(syst)) x 10(-)6, from which we derive the partial widths Gamma(Upsilon(4S) --> pi(+)pi(-)Upsilon(1S))=(1.8 +/-0.4) keV and Gamma(Upsilon(4S) --> pi(+)pi(-)Upsilon(2S))=(2.7 +/- 0.8) keV. |
| doi_str_mv | 10.1103/PhysRevLett.96.232001 |
| format | Article |
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We measure the product branching fractions Beta(Upsilon(4S) --> pi(+)pi(-)Upsilon(1S)) x BetaUpsilon(1S) --> mu(+)mu(-) = (2.23 +/- 0.25(stat) +/- 0.27(syst))x 10(-6) and Beta(Upsilon(4S) --> pi(+)pi(-)Upsilon(2S) x Beta(Upsilon(2S) --> mu(+)mu(-))=(1.69 +/-0.26(stat) +/- 0.20(syst)) x 10(-)6, from which we derive the partial widths Gamma(Upsilon(4S) --> pi(+)pi(-)Upsilon(1S))=(1.8 +/-0.4) keV and Gamma(Upsilon(4S) --> pi(+)pi(-)Upsilon(2S))=(2.7 +/- 0.8) keV.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.96.232001</identifier><identifier>PMID: 16803371</identifier><language>eng</language><publisher>United States: American Physical Society</publisher><subject>Experiments ; Física de partícules ; High Energy Physics - Experiment ; Particle physics ; Physics</subject><ispartof>Physical review letters, 2006-06, Vol.96 (23), p.232001-232001, Article 232001</ispartof><rights>(c) American Physical Society, 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M</creatorcontrib><creatorcontrib>Oddone, P J</creatorcontrib><creatorcontrib>Orimoto, T J</creatorcontrib><creatorcontrib>Pripstein, M</creatorcontrib><creatorcontrib>Roe, N A</creatorcontrib><creatorcontrib>Ronan, M T</creatorcontrib><creatorcontrib>Wenzel, W A</creatorcontrib><creatorcontrib>Barrett, M</creatorcontrib><creatorcontrib>Ford, K E</creatorcontrib><creatorcontrib>Harrison, T J</creatorcontrib><creatorcontrib>Hart, A J</creatorcontrib><creatorcontrib>Hawkes, C M</creatorcontrib><creatorcontrib>Morgan, S E</creatorcontrib><creatorcontrib>Watson, A T</creatorcontrib><creatorcontrib>Goetzen, K</creatorcontrib><creatorcontrib>Held, T</creatorcontrib><creatorcontrib>Koch, H</creatorcontrib><creatorcontrib>Lewandowski, B</creatorcontrib><creatorcontrib>Pelizaeus, M</creatorcontrib><creatorcontrib>Peters, K</creatorcontrib><creatorcontrib>Schroeder, T</creatorcontrib><creatorcontrib>Steinke, M</creatorcontrib><creatorcontrib>Boyd, J T</creatorcontrib><creatorcontrib>Burke, J P</creatorcontrib><creatorcontrib>Cottingham, W N</creatorcontrib><creatorcontrib>Walker, D</creatorcontrib><creatorcontrib>Cuhadar-Donszelmann, T</creatorcontrib><creatorcontrib>Fulsom, B G</creatorcontrib><creatorcontrib>Hearty, C</creatorcontrib><creatorcontrib>Knecht, N S</creatorcontrib><creatorcontrib>Mattison, T S</creatorcontrib><creatorcontrib>McKenna, J A</creatorcontrib><creatorcontrib>Khan, A</creatorcontrib><creatorcontrib>Kyberd, P</creatorcontrib><creatorcontrib>Saleem, M</creatorcontrib><creatorcontrib>Teodorescu, L</creatorcontrib><creatorcontrib>Blinov, V E</creatorcontrib><creatorcontrib>Bukin, A D</creatorcontrib><creatorcontrib>Druzhinin, V P</creatorcontrib><creatorcontrib>Golubev, V B</creatorcontrib><creatorcontrib>Onuchin, A P</creatorcontrib><creatorcontrib>Serednyakov, S I</creatorcontrib><creatorcontrib>Skovpen, Yu I</creatorcontrib><creatorcontrib>Solodov, E P</creatorcontrib><creatorcontrib>Todyshev, K Yu</creatorcontrib><creatorcontrib>Best, D S</creatorcontrib><creatorcontrib>Bondioli, M</creatorcontrib><creatorcontrib>Bruinsma, M</creatorcontrib><creatorcontrib>Chao, M</creatorcontrib><creatorcontrib>Curry, S</creatorcontrib><creatorcontrib>Eschrich, I</creatorcontrib><creatorcontrib>Kirkby, D</creatorcontrib><creatorcontrib>Lankford, A J</creatorcontrib><creatorcontrib>Lund, P</creatorcontrib><creatorcontrib>Mandelkern, M</creatorcontrib><creatorcontrib>Mommsen, R K</creatorcontrib><creatorcontrib>Roethel, W</creatorcontrib><creatorcontrib>Stoker, D P</creatorcontrib><creatorcontrib>Abachi, S</creatorcontrib><creatorcontrib>Buchanan, C</creatorcontrib><creatorcontrib>Foulkes, S D</creatorcontrib><creatorcontrib>Gary, J W</creatorcontrib><creatorcontrib>Long, O</creatorcontrib><creatorcontrib>Shen, B C</creatorcontrib><creatorcontrib>Wang, K</creatorcontrib><creatorcontrib>Zhang, L</creatorcontrib><creatorcontrib>BABAR Collaboration</creatorcontrib><title>Observation of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) and pi(+)pi(-)Upsilon(2S)</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>Observation of Upsilon(4S) decays to pi(+)pi(-)C and pi(+)pi(-)Upsilon(2S)We present the first measurement of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) based on a sample of 230 x 106(4S) mesons collected with the BABAR detector. We measure the product branching fractions Beta(Upsilon(4S) --> pi(+)pi(-)Upsilon(1S)) x BetaUpsilon(1S) --> mu(+)mu(-) = (2.23 +/- 0.25(stat) +/- 0.27(syst))x 10(-6) and Beta(Upsilon(4S) --> pi(+)pi(-)Upsilon(2S) x Beta(Upsilon(2S) --> mu(+)mu(-))=(1.69 +/-0.26(stat) +/- 0.20(syst)) x 10(-)6, from which we derive the partial widths Gamma(Upsilon(4S) --> pi(+)pi(-)Upsilon(1S))=(1.8 +/-0.4) keV and Gamma(Upsilon(4S) --> pi(+)pi(-)Upsilon(2S))=(2.7 +/- 0.8) keV.</description><subject>Experiments</subject><subject>Física de partícules</subject><subject>High Energy Physics - Experiment</subject><subject>Particle 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Boutigny, D ; Couderc, F ; Karyotakis, Y ; Lees, J P ; Poireau, V ; Tisserand, V ; Zghiche, A ; Grauges, E ; Palano, A ; Chen, J C ; Qi, N D ; Rong, G ; Wang, P ; Zhu, Y S ; Eigen, G ; Ofte, I ; Stugu, B ; Abrams, G S ; Battaglia, M ; Brown, D N ; Button-Shafer, J ; Cahn, R N ; Charles, E ; Gill, M S ; Groysman, Y ; Jacobsen, R G ; Kadyk, J A ; Kerth, L T ; Kolomensky, Yu G ; Kukartsev, G ; Lynch, G ; Mir, L M ; Oddone, P J ; Orimoto, T J ; Pripstein, M ; Roe, N A ; Ronan, M T ; Wenzel, W A ; Barrett, M ; Ford, K E ; Harrison, T J ; Hart, A J ; Hawkes, C M ; Morgan, S E ; Watson, A T ; Goetzen, K ; Held, T ; Koch, H ; Lewandowski, B ; Pelizaeus, M ; Peters, K ; Schroeder, T ; Steinke, M ; Boyd, J T ; Burke, J P ; Cottingham, W N ; Walker, D ; Cuhadar-Donszelmann, T ; Fulsom, B G ; Hearty, C ; Knecht, N S ; Mattison, T S ; McKenna, J A ; Khan, A ; Kyberd, P ; Saleem, M ; Teodorescu, L ; Blinov, V E ; Bukin, A D ; Druzhinin, V P ; Golubev, V B ; Onuchin, A P ; Serednyakov, S I ; Skovpen, Yu I ; Solodov, E P ; Todyshev, K Yu ; Best, D S ; Bondioli, M ; Bruinsma, M ; Chao, M ; Curry, S ; Eschrich, I ; Kirkby, D ; Lankford, A J ; Lund, P ; Mandelkern, M ; Mommsen, R K ; Roethel, W ; Stoker, D P ; Abachi, S ; Buchanan, C ; Foulkes, S D ; Gary, J W ; Long, O ; Shen, B C ; Wang, K ; Zhang, L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-90bfdca1bc4e6e7a7d14923351bcd38f4ad5cdcc9afd23fe742c1d923d6b9cd53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Experiments</topic><topic>Física de partícules</topic><topic>High Energy Physics - Experiment</topic><topic>Particle physics</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aubert, B</creatorcontrib><creatorcontrib>Barate, R</creatorcontrib><creatorcontrib>Bona, M</creatorcontrib><creatorcontrib>Boutigny, D</creatorcontrib><creatorcontrib>Couderc, F</creatorcontrib><creatorcontrib>Karyotakis, Y</creatorcontrib><creatorcontrib>Lees, J P</creatorcontrib><creatorcontrib>Poireau, V</creatorcontrib><creatorcontrib>Tisserand, V</creatorcontrib><creatorcontrib>Zghiche, A</creatorcontrib><creatorcontrib>Grauges, E</creatorcontrib><creatorcontrib>Palano, A</creatorcontrib><creatorcontrib>Chen, J C</creatorcontrib><creatorcontrib>Qi, N D</creatorcontrib><creatorcontrib>Rong, G</creatorcontrib><creatorcontrib>Wang, P</creatorcontrib><creatorcontrib>Zhu, Y S</creatorcontrib><creatorcontrib>Eigen, G</creatorcontrib><creatorcontrib>Ofte, I</creatorcontrib><creatorcontrib>Stugu, B</creatorcontrib><creatorcontrib>Abrams, G S</creatorcontrib><creatorcontrib>Battaglia, M</creatorcontrib><creatorcontrib>Brown, D N</creatorcontrib><creatorcontrib>Button-Shafer, J</creatorcontrib><creatorcontrib>Cahn, R N</creatorcontrib><creatorcontrib>Charles, E</creatorcontrib><creatorcontrib>Gill, M S</creatorcontrib><creatorcontrib>Groysman, Y</creatorcontrib><creatorcontrib>Jacobsen, R G</creatorcontrib><creatorcontrib>Kadyk, J A</creatorcontrib><creatorcontrib>Kerth, L T</creatorcontrib><creatorcontrib>Kolomensky, Yu G</creatorcontrib><creatorcontrib>Kukartsev, G</creatorcontrib><creatorcontrib>Lynch, G</creatorcontrib><creatorcontrib>Mir, L M</creatorcontrib><creatorcontrib>Oddone, P J</creatorcontrib><creatorcontrib>Orimoto, T J</creatorcontrib><creatorcontrib>Pripstein, M</creatorcontrib><creatorcontrib>Roe, N A</creatorcontrib><creatorcontrib>Ronan, M T</creatorcontrib><creatorcontrib>Wenzel, W A</creatorcontrib><creatorcontrib>Barrett, M</creatorcontrib><creatorcontrib>Ford, K E</creatorcontrib><creatorcontrib>Harrison, T J</creatorcontrib><creatorcontrib>Hart, A J</creatorcontrib><creatorcontrib>Hawkes, C M</creatorcontrib><creatorcontrib>Morgan, S E</creatorcontrib><creatorcontrib>Watson, A T</creatorcontrib><creatorcontrib>Goetzen, K</creatorcontrib><creatorcontrib>Held, T</creatorcontrib><creatorcontrib>Koch, H</creatorcontrib><creatorcontrib>Lewandowski, B</creatorcontrib><creatorcontrib>Pelizaeus, M</creatorcontrib><creatorcontrib>Peters, K</creatorcontrib><creatorcontrib>Schroeder, T</creatorcontrib><creatorcontrib>Steinke, M</creatorcontrib><creatorcontrib>Boyd, J T</creatorcontrib><creatorcontrib>Burke, J P</creatorcontrib><creatorcontrib>Cottingham, W N</creatorcontrib><creatorcontrib>Walker, D</creatorcontrib><creatorcontrib>Cuhadar-Donszelmann, T</creatorcontrib><creatorcontrib>Fulsom, B G</creatorcontrib><creatorcontrib>Hearty, C</creatorcontrib><creatorcontrib>Knecht, N S</creatorcontrib><creatorcontrib>Mattison, T S</creatorcontrib><creatorcontrib>McKenna, J A</creatorcontrib><creatorcontrib>Khan, A</creatorcontrib><creatorcontrib>Kyberd, P</creatorcontrib><creatorcontrib>Saleem, M</creatorcontrib><creatorcontrib>Teodorescu, L</creatorcontrib><creatorcontrib>Blinov, V E</creatorcontrib><creatorcontrib>Bukin, A D</creatorcontrib><creatorcontrib>Druzhinin, V P</creatorcontrib><creatorcontrib>Golubev, V B</creatorcontrib><creatorcontrib>Onuchin, A P</creatorcontrib><creatorcontrib>Serednyakov, S I</creatorcontrib><creatorcontrib>Skovpen, Yu I</creatorcontrib><creatorcontrib>Solodov, E P</creatorcontrib><creatorcontrib>Todyshev, K Yu</creatorcontrib><creatorcontrib>Best, D S</creatorcontrib><creatorcontrib>Bondioli, M</creatorcontrib><creatorcontrib>Bruinsma, M</creatorcontrib><creatorcontrib>Chao, M</creatorcontrib><creatorcontrib>Curry, S</creatorcontrib><creatorcontrib>Eschrich, I</creatorcontrib><creatorcontrib>Kirkby, D</creatorcontrib><creatorcontrib>Lankford, A J</creatorcontrib><creatorcontrib>Lund, P</creatorcontrib><creatorcontrib>Mandelkern, M</creatorcontrib><creatorcontrib>Mommsen, R K</creatorcontrib><creatorcontrib>Roethel, W</creatorcontrib><creatorcontrib>Stoker, D P</creatorcontrib><creatorcontrib>Abachi, S</creatorcontrib><creatorcontrib>Buchanan, C</creatorcontrib><creatorcontrib>Foulkes, S D</creatorcontrib><creatorcontrib>Gary, J W</creatorcontrib><creatorcontrib>Long, O</creatorcontrib><creatorcontrib>Shen, B C</creatorcontrib><creatorcontrib>Wang, K</creatorcontrib><creatorcontrib>Zhang, L</creatorcontrib><creatorcontrib>BABAR Collaboration</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Recercat</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aubert, B</au><au>Barate, R</au><au>Bona, M</au><au>Boutigny, D</au><au>Couderc, F</au><au>Karyotakis, Y</au><au>Lees, J P</au><au>Poireau, V</au><au>Tisserand, V</au><au>Zghiche, A</au><au>Grauges, E</au><au>Palano, A</au><au>Chen, J C</au><au>Qi, N D</au><au>Rong, G</au><au>Wang, P</au><au>Zhu, Y S</au><au>Eigen, G</au><au>Ofte, I</au><au>Stugu, B</au><au>Abrams, G S</au><au>Battaglia, M</au><au>Brown, D N</au><au>Button-Shafer, J</au><au>Cahn, R N</au><au>Charles, E</au><au>Gill, M S</au><au>Groysman, Y</au><au>Jacobsen, R G</au><au>Kadyk, J A</au><au>Kerth, L T</au><au>Kolomensky, Yu G</au><au>Kukartsev, G</au><au>Lynch, G</au><au>Mir, L M</au><au>Oddone, P J</au><au>Orimoto, T J</au><au>Pripstein, M</au><au>Roe, N A</au><au>Ronan, M T</au><au>Wenzel, W A</au><au>Barrett, M</au><au>Ford, K E</au><au>Harrison, T J</au><au>Hart, A J</au><au>Hawkes, C M</au><au>Morgan, S E</au><au>Watson, A T</au><au>Goetzen, K</au><au>Held, T</au><au>Koch, H</au><au>Lewandowski, B</au><au>Pelizaeus, M</au><au>Peters, K</au><au>Schroeder, T</au><au>Steinke, M</au><au>Boyd, J T</au><au>Burke, J P</au><au>Cottingham, W N</au><au>Walker, D</au><au>Cuhadar-Donszelmann, T</au><au>Fulsom, B G</au><au>Hearty, C</au><au>Knecht, N S</au><au>Mattison, T S</au><au>McKenna, J A</au><au>Khan, A</au><au>Kyberd, P</au><au>Saleem, M</au><au>Teodorescu, L</au><au>Blinov, V E</au><au>Bukin, A D</au><au>Druzhinin, V P</au><au>Golubev, V B</au><au>Onuchin, A P</au><au>Serednyakov, S I</au><au>Skovpen, Yu I</au><au>Solodov, E P</au><au>Todyshev, K Yu</au><au>Best, D S</au><au>Bondioli, M</au><au>Bruinsma, M</au><au>Chao, M</au><au>Curry, S</au><au>Eschrich, I</au><au>Kirkby, D</au><au>Lankford, A J</au><au>Lund, P</au><au>Mandelkern, M</au><au>Mommsen, R K</au><au>Roethel, W</au><au>Stoker, D P</au><au>Abachi, S</au><au>Buchanan, C</au><au>Foulkes, S D</au><au>Gary, J W</au><au>Long, O</au><au>Shen, B C</au><au>Wang, K</au><au>Zhang, L</au><aucorp>BABAR Collaboration</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) and pi(+)pi(-)Upsilon(2S)</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2006-06-16</date><risdate>2006</risdate><volume>96</volume><issue>23</issue><spage>232001</spage><epage>232001</epage><pages>232001-232001</pages><artnum>232001</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Observation of Upsilon(4S) decays to pi(+)pi(-)C and pi(+)pi(-)Upsilon(2S)We present the first measurement of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) based on a sample of 230 x 106(4S) mesons collected with the BABAR detector. We measure the product branching fractions Beta(Upsilon(4S) --> pi(+)pi(-)Upsilon(1S)) x BetaUpsilon(1S) --> mu(+)mu(-) = (2.23 +/- 0.25(stat) +/- 0.27(syst))x 10(-6) and Beta(Upsilon(4S) --> pi(+)pi(-)Upsilon(2S) x Beta(Upsilon(2S) --> mu(+)mu(-))=(1.69 +/-0.26(stat) +/- 0.20(syst)) x 10(-)6, from which we derive the partial widths Gamma(Upsilon(4S) --> pi(+)pi(-)Upsilon(1S))=(1.8 +/-0.4) keV and Gamma(Upsilon(4S) --> pi(+)pi(-)Upsilon(2S))=(2.7 +/- 0.8) keV.</abstract><cop>United States</cop><pub>American Physical Society</pub><pmid>16803371</pmid><doi>10.1103/PhysRevLett.96.232001</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0003-4774-2194</orcidid><orcidid>https://orcid.org/0000-0001-6589-8673</orcidid><orcidid>https://orcid.org/0000-0002-3041-4680</orcidid><orcidid>https://orcid.org/0000-0003-4887-2150</orcidid><orcidid>https://orcid.org/0000-0003-3332-2615</orcidid><orcidid>https://orcid.org/0000-0003-2655-7643</orcidid><orcidid>https://orcid.org/0000-0002-3110-6022</orcidid><orcidid>https://orcid.org/0000-0002-9807-861X</orcidid><orcidid>https://orcid.org/0000-0003-1616-1899</orcidid><orcidid>https://orcid.org/0000-0001-5914-8614</orcidid><orcidid>https://orcid.org/0000-0002-8859-5453</orcidid><orcidid>https://orcid.org/0000-0002-9495-9145</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2006-06, Vol.96 (23), p.232001-232001, Article 232001 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_in2p3_00084384v1 |
| source | Recercat; APS: American Physical Society E-Journals (Physics) |
| subjects | Experiments Física de partícules High Energy Physics - Experiment Particle physics Physics |
| title | Observation of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) and pi(+)pi(-)Upsilon(2S) |
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