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First observation of the sigma(*+)(c) baryon and a new measurement of the sigma(*+)(c) mass.

First observation of the sigma(*+)(c) baryon and a new measurement of the sigma(*+)(c) mass.

Authors :
Ammar R
Bean A
Besson D
Davis R
Kwak N
Zhao X
Anderson S
Frolov VV
Kubota Y
Lee SJ
Mahapatra R
O'Neill JJ
Poling R
Riehle T
Smith A
Stepaniak CJ
Urheim J
Ahmed S
Alam MS
Athar SB
Jian L
Ling L
Saleem M
Timm S
Wappler F
Anastassov A
Duboscq JE
Eckhart E
Gan KK
Gwon C
Hart T
Honscheid K
Hufnagel D
Kagan H
Kass R
Pedlar TK
Schwarthoff H
Thayer JB
von Toerne E
Zoeller MM
Richichi SJ
Severini H
Skubic P
Undrus A
Chen S
Fast J
Hinson JW
Lee J
Miller DH
Shibata EI
Shipsey IP
Pavlunin V
Cronin-Hennessy D
Lyon AL
Thorndike EH
Jessop CP
Marsiske H
Perl ML
Savinov V
Zhou X
Coan TE
Fadeyev V
Maravin Y
Narsky I
Stroynowski R
Ye J
Wlodek T
Artuso M
Ayad R
Boulahouache C
Bukin K
Dambasuren E
Karamov S
Majumder G
Moneti GC
Mountain R
Schuh S
Skwarnicki T
Stone S
Viehhauser G
Wang JC
Wolf A
Wu J
Kopp S
Mahmood AH
Csorna SE
Danko I
McLean KW
Márka S
Xu Z
Godang R
Kinoshita K
Lai IC
Schrenk S
Bonvicini G
Cinabro D
McGee S
Perera LP
Zhou GJ
Lipeles E
Pappas SP
Schmidtler M
Shapiro A
Sun WM
Weinstein AJ
Würthwein F
Jaffe DE
Masek G
Paar HP
Potter EM
Prell S
Sharma V
Asner DM
Eppich A
Hill TS
Morrison RJ
Briere RA
Chen GP
Behrens BH
Ford WT
Gritsan A
Roy J
Smith JG
Alexander JP
Baker R
Bebek C
Berger BE
Berkelman K
Blanc F
Boisvert V
Cassel DG
Dickson M
Drell PS
Ecklund KM
Ehrlich R
Foland AD
Gaidarev P
Galik RS
Gibbons L
Gittelman B
Gray SW
Hartill DL
Heltsley BK
Hopman PI
Jones CD
Kreinick DL
Lohner M
Magerkurth A
Meyer TO
Mistry NB
Nordberg E
Patterson JR
Peterson D
Riley D
Thayer JG
Urner D
Valant-Spaight B
Warburton A
Avery P
Prescott C
Rubiera AI
Yelton J
Zheng J
Brandenburg G
Ershov A
Gao YS
Kim DY
Wilson R
Browder TE
Li Y
Rodriguez JL
Yamamoto H
Bergfeld T
Eisenstein BI
Ernst J
Gladding GE
Gollin GD
Hans RM
Johnson E
Karliner I
Marsh MA
Palmer M
Plager C
Sedlack C
Selen M
Thaler JJ
Williams J
Edwards KW
Janicek R
Patel PM
Sadoff AJ
Source :
Physical review letters [Phys Rev Lett] 2001 Feb 12; Vol. 86 (7), pp. 1167-70.
Publication Year :
2001

Abstract

Using data recorded with the CLEO II and CLEO II.V detector configurations at the Cornell Electron Storage Rings, we report the first observation and mass measurement of the Sigma(*+)(c) charmed baryon, and an updated measurement of the mass of the Sigma(+)(c) baryon. We find M(Sigma(*+)(c))-M(Lambda(+)(c)) = (231.0+/-1.1+/-2.0) MeV, and M(Sigma(+)(c))-M(Lambda(+)(c)) = (166.4+/-0.2+/-0.3) MeV, where the errors are statistical and systematic, respectively.

Details

Language :
English
ISSN :
0031-9007
Volume :
86
Issue :
7
Database :
MEDLINE
Journal :
Physical review letters
Publication Type :
Academic Journal
Accession number :
11178035
Full Text :
https://doi.org/10.1103/PhysRevLett.86.1167