Cross Sections and Rosenbluth Separations in 1H(e,e'K+)Lambda up to Q2=2.35 GeV2
Coman, M. ; Fissum, Kevin LU
and Zhu, L.
(2010)
In Physical Review C: covering nuclear physics
81(5).
- Abstract
- The kaon electroproduction reaction 1H(e,e′K+)Λ was studied as a function of the virtual-photon four-momentum, Q2, total energy, W, and momentum transfer, t, for different values of the virtual-photon polarization parameter. Data were taken at electron beam energies ranging from 3.40 to 5.75 GeV. The center of mass cross section was determined for twenty-one kinematics corresponding to Q2 of 1.90 and 2.35 GeV2, and the longitudinal, σL, and transverse, σT, cross sections were separated using the Rosenbluth technique at fixed W and t. The separated cross sections reveal a flat energy dependence at forward kaon angles not satisfactorily described by existing electroproduction models. Influence of the kaon pole on the cross sections was... (More)
- The kaon electroproduction reaction 1H(e,e′K+)Λ was studied as a function of the virtual-photon four-momentum, Q2, total energy, W, and momentum transfer, t, for different values of the virtual-photon polarization parameter. Data were taken at electron beam energies ranging from 3.40 to 5.75 GeV. The center of mass cross section was determined for twenty-one kinematics corresponding to Q2 of 1.90 and 2.35 GeV2, and the longitudinal, σL, and transverse, σT, cross sections were separated using the Rosenbluth technique at fixed W and t. The separated cross sections reveal a flat energy dependence at forward kaon angles not satisfactorily described by existing electroproduction models. Influence of the kaon pole on the cross sections was investigated by adopting an off-shell form factor in the Regge model, which better describes the observed energy dependence of σT and σL. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/780106e0-ae33-45ed-ba87-e1f1c194ad1e
- author
- Coman, M.
; Fissum, Kevin
LU
and Zhu, L.
- author collaboration
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C: covering nuclear physics
- volume
- 81
- issue
- 5
- article number
- 052201
- publisher
- American Physical Society
- external identifiers
-
- scopus:77953250350
- ISSN
- 0556-2813
- DOI
- 10.1103/PhysRevC.81.052201
- project
- Production of Mesons with Electromagnetic Beams
- language
- English
- LU publication?
- no
- id
- 780106e0-ae33-45ed-ba87-e1f1c194ad1e
- date added to LUP
- 2019-05-17 15:05:02
- date last changed
- 2022-03-25 18:46:28
@article{780106e0-ae33-45ed-ba87-e1f1c194ad1e,
abstract = {{The kaon electroproduction reaction 1H(e,e′K+)Λ was studied as a function of the virtual-photon four-momentum, Q2, total energy, W, and momentum transfer, t, for different values of the virtual-photon polarization parameter. Data were taken at electron beam energies ranging from 3.40 to 5.75 GeV. The center of mass cross section was determined for twenty-one kinematics corresponding to Q2 of 1.90 and 2.35 GeV2, and the longitudinal, σL, and transverse, σT, cross sections were separated using the Rosenbluth technique at fixed W and t. The separated cross sections reveal a flat energy dependence at forward kaon angles not satisfactorily described by existing electroproduction models. Influence of the kaon pole on the cross sections was investigated by adopting an off-shell form factor in the Regge model, which better describes the observed energy dependence of σT and σL.}},
author = {{Coman, M. and Fissum, Kevin and Zhu, L.}},
issn = {{0556-2813}},
language = {{eng}},
number = {{5}},
publisher = {{American Physical Society}},
series = {{Physical Review C: covering nuclear physics}},
title = {{Cross Sections and Rosenbluth Separations in 1H(e,e'K+)Lambda up to Q2=2.35 GeV2}},
url = {{http://dx.doi.org/10.1103/PhysRevC.81.052201}},
doi = {{10.1103/PhysRevC.81.052201}},
volume = {{81}},
year = {{2010}},
}