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Measurement of polarisation observables in Ks0Σ+ photoproduction off the proton

Authors :
R. Ewald
A.V. Anisovich
B. Bantes
O. Bartholomy
D. Bayadilov
R. Beck
Y.A. Beloglazov
K.-T. Brinkmann
V. Crede
H. Dutz
D. Elsner
K. Fornet-Ponse
F. Frommberger
Ch. Funke
A.B. Gridnev
E. Gutz
J. Hannappel
W. Hillert
P. Hoffmeister
I. Jaegle
O. Jahn
T.C. Jude
J. Junkersfeld
H. Kalinowsky
S. Kammer
V. Kleber
Frank Klein
Friedrich Klein
E. Klempt
B. Krusche
M. Lang
H. Löhner
I.V. Lopatin
D. Menze
T. Mertens
J.G. Messchendorp
V. Metag
M. Nanova
V.A. Nikonov
D. Novinski
R. Novotny
M. Ostrick
L. Pant
H. van Pee
A. Roy
A.V. Sarantsev
S. Schadmand
C. Schmidt
H. Schmieden
B. Schoch
S. Shende
V. Sokhoyan
A. Süle
V.V. Sumachev
T. Szczepanek
U. Thoma
D. Trnka
R. Varma
D. Walther
Ch. Wendel
Source :
Physics Letters B, Vol 738, Iss , Pp 268-273 (2014)
Publication Year :
2014
Publisher :
Elsevier, 2014.

Abstract

The reaction γp→KS0Σ+ is studied in the photon energy range from threshold. Linearly polarised photon beams from coherent bremsstrahlung enabled the first measurement of photon beam asymmetries in this reaction up to Eγ=1650MeV. In addition, the recoil hyperon polarisation was determined through the asymmetry in the weak decay Σ+→pπ0 up to Eγ=2250MeV. The data are compared to partial wave analyses, and the possible impact on the interpretation of a recently observed prominent structure in the cross section near the K⁎ thresholds is discussed. Keywords: Meson production, Other strange mesons, Baryon resonances (SCB0), Decays of baryons, Polarisation in interactions and scattering

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
03702693
Volume :
738
Issue :
268-273
Database :
Directory of Open Access Journals
Journal :
Physics Letters B
Publication Type :
Academic Journal
Accession number :
edsdoj.4229e9fa1ad4fd39b96e3b542cd7ff2
Document Type :
article
Full Text :
https://doi.org/10.1016/j.physletb.2014.09.039