在质量接近2.94 GeV/c²时对一个粲重子衰变为D⁰p的观测。
Observation of a Charmed Baryon Decaying to D;{0}p at a Mass Near 2.94 GeV/c;{2}.
作者信息
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, Pappagallo M, 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-Schafer J, Cahn R N, Charles E, Day C T, 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, Yu Todyshev K, 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, Hadavand H K, Hill E J, Paar H P, Rahatlou S, Sharma V, Berryhill J W, Campagnari C, Cunha A, Dahmes B, Hong T M, Kovalskyi D, Richman J D, Beck T W, Eisner A M, Flacco C J, Heusch C A, Kroseberg J, Lockman W S, Nesom G, Schalk T, Schumm B A, Seiden A, Spradlin P, Williams D C, Wilson M G, Albert J, Chen E, Dvoretskii A, Hitlin D G, Narsky I, Piatenko T, Porter F C, Ryd A, Samuel A, Andreassen R, Mancinelli G, Meadows B T, Sokoloff M D, Blanc F, Bloom P C, Chen S, Ford W T, Hirschauer J F, Kreisel A, Nauenberg U, Olivas A, Ruddick W O, Smith J G, Ulmer K A, Wagner S R, Zhang J, Chen A, Eckhart E A, Soffer A, Toki W H, Wilson R J, Winklmeier F, Zeng Q, Altenburg D D, Feltresi E, Hauke A, Jasper H, Spaan B, Brandt T, Klose V, Lacker H M, Mader W F, Nogowski R, Petzold A, Schubert J, Schubert K R, Schwierz R, Sundermann J E, Volk A, Bernard D, Bonneaud G R, Grenier P, Latour E, Thiebaux Ch, Verderi M, Bard D J, Clark P J, Gradl W, Muheim F, Playfer S, Robertson A I, Xie Y, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Luppi E, Negrini M, Petrella A, Piemontese L, Prencipe E, Anulli F, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Pacetti S, Patteri P, Peruzzi I M, Piccolo M, Rama M, Zallo A, Buzzo A, Capra R, Contri R, Lo Vetere M, Macri M M, Monge M R, Passaggio S, Patrignani C, Robutti E, Santroni A, Tosi S, Brandenburg G, Chaisanguanthum K S, Morii M, Wu J, Dubitzky R S, Marks J, Schenk S, Uwer U, Bhimji W, Bowerman D A, Dauncey P D, Egede U, Flack R L, Gaillard J R, Nash J A, Nikolich M B, Panduro Vazquez W, Chai X, Charles M J, Mallik U, Meyer N T, Ziegler V, Cochran J, Crawley H B, Dong L, Eyges V, Meyer W T, Prell S, Rosenberg E I, Rubin A E, Gristan A V, Fritsch M, Schott G, Arnaud N, Davier M, Grosdidier G, Höcker A, Le Diberder F, Lepeltier V, Lutz A M, Oyanguren A, Pruvot S, Rodier S, Roudeau P, Schune M H, Stocchi A, Wang W F, Wormser G, Cheng C H, Lange D J, Wright D M, Chavez C A, Forster I J, Fry J R, Gabathuler E, Gamet R, George K A, Hutchcroft D E, Payne D J, Schofield K C, Touramanis C, Bevan A J, Di Lodovico F, Menges W, Sacco R, Brown C L, Cowan G, Flaecher H U, Hopkins D A, Jackson P S, McMahon T R, Ricciardi S, Salvatore F, Brown D N, Davis C L, Allison J, Barlow N R, Barlow R J, Chia Y M, Edgar C L, Kelly M P, Lafferty G D, Naisbit M T, Williams J C, Yi J I, Chen C, Hulsbergen W D, Jawahery A, Lae C K, Roberts D A, Simi G, Blaylock G, Dallapiccola C, Hertzbach S S, Li X, Moore T B, Saremi S, Staengle H, Willocq S Y, Cowan R, Koeneke K, Sciolla G, Sekula S J, Spitznagel M, Taylor F, Yamamoto R K, Kim H, Patel P M, Potter C T, Robertson S H, Lazzaro A, Lombardo V, Palombo F, Bauer J M, Cremaldi L, Eschenburg V, Godang R, Kroeger R, Reidy J, Sanders D A, Summers D J, Zhao H W, Brunet S, Côté D, Simard M, Taras P, Viaud F B, Nicholson H, Cavallo N, De Nardo G, Del Re D, Fabozzi F, Gatto C, Lista L, Monorchio D, Paolucci P, Piccolo D, Sciacca C, Baak M, Bulten H, Raven G, Snoek H L, Jessop C P, Losecco J M, Allmendinger T, Benelli G, Gan K K, Honscheid K, Hufnagel D, Jackson P D, Kagan H, Kass R, Pulliam T, Rahimi A M, Ter-Antonyan R, Wong Q K, Blout N L, Brau J, Frey R, Igonkina O, Lu M, Rahmat R, Sinev N B, Strom D, Strube J, Torrence E, Galeazzi F, Gaz A, Margoni M, Morandin M, Pompili A, Posocco M, Rotondo M, Simonetto F, Stroili R, Voci C, Benayoun M, Chauveau J, David P, Del Buono L, de la Vaissière Ch, Hamon O, Hartfiel B L, John M J J, Leruste Ph, Malclès J, Ocariz J, Roos L, Therin G, Behera P K, Gladney L, Panetta J, Biasini M, Covarelli R, Pioppi M, Angelini C, Batignani G, Bettarini S, Bucci F, Calderini G, Carpinelli M, Cenci R, Forti F, Giorgi M A, Lusiani A, Marchiori G, Mazur M A, Morganti M, Neri N, Paoloni E, Rizzo G, Walsh J, Haire M, Judd D, Wagoner D E, Biesiada J, Danielson N, Elmer P, Lau Y P, Lu C, Olsen J, Smith A J S, Telnov A V, Bellini F, Cavoto G, D'Orazio A, Di Marco E, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni M A, Morganti S, Piredda G, Polci F, Safai Tehrani F, Voena C, Ebert M, Schröder H, Waldi R, Adye T, De Groot N, Franek B, Olaiya E O, Wilson F F, Emery S, Gaidot A, Ganzhur S F, Hamel de Monchenault G, Kozanecki W, Legendre M, Mayer B, Vasseur G, Yèche Ch, Zito M, Park W, Purohit M V, Weidemann A W, Wilson J R, Allen M T, Aston D, Bartoldus R, Bechtle P, Berger N, Boyarski A M, Claus R, Coleman J P, Convery M R, Cristinziani M, Dingfelder J C, Dong D, Dorfan J, Dubois-Felsmann G P, Dujmic D, Dunwoodie W, Field R C, Glanzman T, Gowdy S J, Graham M T, Halyo V, Hast C, Hyrn'ova T, Innes W R, Kelsey M H, Kim P, Kocian M L, Leith D W G S, Li S, Libby J, Luitz S, Luth V, Lynch H L, Macfarlane D B, Marsiske H, Messner R, Muller D R, O'grady C P, Ozcan V E, Perazzo A, Perl M, Ratcliff B N, Roodman A, Salnikov A A, Schindler R H, Schwiening J, Snyder A, Stelzer J, Su D, Sullivan M K, Suzuki K, Swain S K, Thompson J M, Va'vra J, van Bakel N, Weaver M, Weinstein A J R, Wisniewski W J, Wittgen M, Wright D H, Yarritu A K, Yi K, Young C C, Burchat P R, Edwards A J, Majewski S A, Petersen B A, Roat C, Wilden L, Ahmed S, Alam M S, Bula R, Ernst J A, Jain V, Pan B, Saeed M A, Wappler F R, Zain S B, Bugg W, Krishnamurthy M, Spanier S M, Eckmann R, Ritchie J L, Satpathy A, Schilling C J, Schwitters R F, Izen J M, Kitayama I, Lou X C, Ye S, Bianchi F, Gallo F, Gamba D, Bomben M, Bosisio L, Cartaro C, Cossutti F, Della Ricca G, Dittongo S, Grancagnolo S, Lanceri L, Vitale L, Azzolini V, Martinez-Vidal F, Banerjee Sw, Bhuyan B, Brown C M, Fortin D, Hamano K, Kowalewski R, Nugent I M, Roney J M, Sobie R J, Back J J, Harrison P F, Latham T E, Mohanty G B, Band H R, Chen X, Cheng B, Dasu S, Datta M, Eichenbaum A M, Flood K T, Hollar J J, Johnson J R, Kutter P E, Li H, Liu R, Mellado B, Mihalyi A, Mohapatra A K, Pan Y, Pierini M, Prepost R, Tan P, Wu S L, Yu Z, Neal H
机构信息
Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France.
出版信息
Phys Rev Lett. 2007 Jan 5;98(1):012001. doi: 10.1103/PhysRevLett.98.012001. Epub 2007 Jan 4.
A search for charmed baryons decaying to D(0)p reveals two states: the Lambdac(2880)+ baryon and a previously unobserved state at a mass of [2939.8+/-1.3(stat)+/-1.0(syst)] MeV/c2 and with an intrinsic width of [17.5+/-5.2(stat)+/-5.9(syst)] MeV. Consistent and significant signals are observed for the K(-)pi(+) and K(-)pi(+)pi(-)pi(+) decay modes of the D0 in 287 fb(-1) annihilation data recorded by the BABAR detector at a center-of-mass energy of 10.58 GeV. There is no evidence in the D+p spectrum of doubly charged partners. The mass and intrinsic width of the Lambdac(2880)+ baryon and relative yield of the two baryons are also measured.
对衰变到D(0)p的粲重子进行搜索，发现了两种态：Λc(2880)+重子和一个先前未观测到的态，其质量为[2939.8±1.3(统计)±1.0(系统)]MeV/c2，固有宽度为[17.5±5.2(统计)±5.9(系统)]MeV。在质心能量为10.58 GeV时，BABAR探测器记录的287 fb(-1)湮灭数据中，观测到了D0的K(-)π(+)和K(-)π(+)π(-)π(+)衰变模式一致且显著的信号。在双电荷伴子的D+p谱中没有证据。还测量了Λc(2880)+重子的质量、固有宽度以及这两种重子的相对产率。
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