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28 March 2024
 
  » pubmed » pmid14754107

 Article overview


Observation of an exotic S = +1 baryon in exclusive photoproduction from the deuteron
S Stepanyan ; K Hicks ; D S Carman ; E Pasyuk ; R A Schumacher ; E S Smith ; D J Tedeschi ; L Todor ; G Adams ; P Ambrozewicz ; E Anciant ; M Anghinolfi ; B Asavapibhop ; G Audit ; H Avakian ; H Bagdasaryan ; J P Ball ; S P Barrow ; M Battaglieri ; K Beard ; M Bektasoglu ; M Bellis ; B L Berman ; N Bianchi ; A S Biselli ; S Boiarinov ; S Bouchigny ; R Bradford ; D Branford ; W J Briscoe ; W K Brooks ; V D Burkert ; C Butuceanu ; J R Calarco ; B Carnahan ; S Chen ; L Ciciani ; P L Cole ; A Coleman ; D Cords ; P Corvisiero ; D Crabb ; H Crannell ; J P Cummings ; E De Sanctis ; P V Degtyarenko ; H Denizli ; L Dennis ; R De Vita ; K V Dharmawardane ; K S Dhuga ; C Djalali ; G E Dodge ; D Doughty ; P Dragovitsch ; M Dugger ; S Dytman ; O P Dzyubak ; H Egiyan ; K S Egiyan ; L Elouadrhiri ; A Empl ; P Eugenio ; R Fatemi ; R J Feuerbach ; J Ficenec ; T A Forest ; H Funsten ; M Garçon ; G Gavalian ; G P Gilfoyle ; K L Giovanetti ; C I O Gordon ; R Gothe ; K Griffioen ; M Guidal ; M Guillo ; L Guo ; V Gyurjyan ; C Hadjidakis ; R S Hakobyan ; J Hardie ; D Heddle ; P Heimberg ; F W Hersman ; R S Hicks ; M Holtrop ; J Hu ; C E Hyde-Wright ; M M Ito ; D Jenkins ; K Joo ; H G Juengst ; J D Kellie ; M Khandaker ; K Y Kim ; K Kim ; W Kim ; A Klein ; F J Klein ; A V Klimenko ; M Klusman ; M Kossov ; L H Kramer ; Y Kuang ; V Kubarovsky ; S E Kuhn ; J Kuhn ; J Lachniet ; D Lawrence ; J Li ; A Lima ; K Livingston ; K Lukashin ; J J Manak ; S McAleer ; J W C McNabb ; B A Mecking ; S Mehrabyan ; J J Melone ; M D Mestayer ; C A Meyer ; K Mikhailov ; R Minehart ; M Mirazita ; R Miskimen ; V Mokeev ; L Mor ; S Morrow ; V Muccifora ; J Mueller ; L Y Murphy ; G S Mutchler ; J Napolitano ; R Nasseripour ; S Niccolai ; G Niculescu ; I Niculescu ; B B Niczyporuk ; R A Niyazov ; M Nozar ; J O’Brien ; G V O’Rielly ; A K Opper ; M Osipenko ; K Park ; G Peterson ; S A Philips ; N Pivnyuk ; D Pocanic ; O Pogorelko ; E Polli ; S Pozdniakov ; B M Preedom ; J W Price ; Y Prok ; D Protopopescu ; L M Qin ; B A Raue ; G Riccardi ; G Ricco ; M Ripani ; B G Ritchie ; F Ronchetti ; P Rossi ; D Rowntree ; P Rubin ; F Sabatié ; C Salgado ; J Santoro ; V Sapunenko ; V S Serov ; Y G Sharabian ; J Shaw ; S Simionatto ; A V Skabelin ; L C Smith ; D I Sober ; I I Strakovsky ; A Stavinsky ; P Stoler ; R Suleiman ; M Taiuti ; S Taylor ; U Thoma ; R Thompson ; C Tur ; M Ungaro ; M F Vineyard ; A V Vlassov ; K Wang ; L B Weinstein ; H Weller ; D P Weyg ; C S Whisnant ; E Wolin ; M H Wood ; A Yegneswaran ; J Yun ; ;
Date 19 Dec 2003
Journal Phys Rev Lett, 91 (25), 252001
AbstractIn an exclusive measurement of the reaction gammad-->K(+)K(-)pn, a narrow peak that can be attributed to an exotic baryon with strangeness S=+1 is seen in the K(+)n invariant mass spectrum. The peak is at 1.542+/-0.005 GeV/c(2) with a measured width of 0.021 GeV/c(2) FWHM, which is largely determined by experimental mass resolution. The statistical significance of the peak is (5.2+/-0.6)sigma. The mass and width of the observed peak are consistent with recent reports of a narrow S=+1 baryon by other experimental groups.
Source PubMed, pmid14754107
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