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Differential photoproduction cross sections of theΣ0(1385),Λ(1405), andΛ(1520)

Authors :
H. Y. Lu
Jie Zhang
H. Avakian
M. F. Vineyard
R. Fersch
N. Guler
M. J. Amaryan
N. K. Walford
S. Fegan
H. Voskanyan
H. Seraydaryan
J. P. Ball
D. S. Carman
I. Zonta
R. De Vita
W. J. Briscoe
E. Pasyuk
E. Voutier
Friedrich Klein
H. Moutarde
I. Niculescu
Brian Raue
K. L. Giovanetti
Y. G. Sharabian
A. Kubarovsky
S. Anefalos Pereira
Larry Weinstein
A. Deur
R. A. Schumacher
F. Sabatié
B. Vernarsky
V. P. Kubarovsky
D. Doughty
S. Tkachenko
P. Eugenio
L. Guo
G. Niculescu
Andrew Puckett
Martin K. Mayer
O. Pogorelko
D. Adikaram
W. K. Brooks
D. Heddle
D. Protopopescu
M. Guidal
S. Pozdniakov
S. Park
E. Munevar
S. Niccolai
S. Chandavar
E. Seder
B. S. Ishkhanov
E. De Sanctis
C. E. Taylor
J. J. Phillips
P. Rossi
M. S. Saini
Michael Wood
M. Aghasyan
Z. W. Zhao
David M. Keller
D. I. Sober
M. Holtrop
S. Stepanyan
I. J. D. MacGregor
H. Hakobyan
D. Ho
V. Crede
Y. Ilieva
Kei Moriya
C. A. Meyer
G. V. Fedotov
E. Golovatch
C. Hanretty
Nicholas Zachariou
M. Khandaker
M. Contalbrigo
C. S. Nepali
Luciano Pappalardo
S. Strauch
D. P. Watts
R. A. Montgomery
S. Lewis
M. D. Mestayer
B. McKinnon
J. A. Fleming
O. Cortes
T. Mineeva
D. Rimal
P. Stoler
M. Taiuti
E. L. Isupov
W. Tang
J. Bono
P. Nadel-Turonski
Ye Tian
Michael L. Williams
K. P. Adhikari
B. Dey
M. Osipenko
Diane Schott
G. Rosner
R. Nasseripour
A. I. Ostrovidov
K. Park
S. Boiarinov
K. Hicks
I. Bedlinskiy
D. G. Ireland
D. Martinez
Volker D. Burkert
A. S. Biselli
M. Mirazita
Barry Ritchie
F. X. Girod
A. Celentano
R. W. Gothe
Sergey Kuleshov
J. T. Goetz
V. Mokeev
W. Gohn
N. Gevorgyan
V. Batourine
C. Djalali
J. W. Price
S. Koirala
R. Paremuzyan
Lorenzo Zana
E. Phelps
S. Pisano
H. S. Jo
Gerard Gilfoyle
C. Salgado
D. Sokhan
Hovanes Egiyan
C. Munoz Camacho
R. P. Bennett
P. Collins
N. A. Baltzell
K. A. Griffioen
S. Taylor
Avraham Klein
M. Ungaro
M. Ripani
Michael Dugger
K. Joo
M. Bellis
R. Dupre
M. Battaglieri
S. Procureur
George Davey Smith
A. D'Angelo
L. El Fassi
M. E. McCracken
K. Livingston
N. Dashyan
Source :
Physical Review C. 88
Publication Year :
2013
Publisher :
American Physical Society (APS), 2013.

Abstract

We report the exclusive photoproduction cross sections for the Sigma(1385), Lambda(1405), and Lambda(1520) in the reactions gamma + p -> K+ + Y* using the CLAS detector for energies from near the respective production thresholds up to a center-of-mass energy W of 2.85 GeV. The differential cross sections are integrated to give the total exclusive cross sections for each hyperon. Comparisons are made to current theoretical models based on the effective Lagrangian approach and fitted to previous data. The accuracy of these models is seen to vary widely. The cross sections for the Lambda(1405) region are strikingly different for the Sigma+pi-, Sigma0 pi0, and Sigma- pi+ decay channels, indicating the effect of isospin interference, especially at W values close to the threshold.

Details

ISSN :
1089490X and 05562813
Volume :
88
Database :
OpenAIRE
Journal :
Physical Review C
Accession number :
edsair.doi...........ab69b87b6ebe55c7beb0dd362c6cdb23