Exclusive electroproduction of φ mesons at 4.2 GeV
Lukashin, K. ; Fissum, Kevin LU
and Zhou, Z.
(2001)
In Physical Review C: covering nuclear physics
63(6).
p.065205-065205
- Abstract
- We studied the exclusive reaction e→pe′p′φ using the →φK+K− decay mode. The data were collected using a 4.2 GeV incident electron beam and the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Our experiment covers the range in Q2 from 0.7 to 2.2 GeV2, and W from 2.0 to 2.6 GeV. Taken together with all previous data, we find a consistent picture of φ production on the proton. Our measurement shows the expected decrease of the t slope with the vector-meson formation time cΔτ below 2 fm. At ⟨cΔτ⟩=0.6 fm, we measure bφ=2.27±0.42 GeV−2. The cross section dependence on W as W0.2±0.1 at Q2=1.3 GeV2 was determined by comparison with φ production at HERA after correcting for threshold effects. This... (More)
- We studied the exclusive reaction e→pe′p′φ using the →φK+K− decay mode. The data were collected using a 4.2 GeV incident electron beam and the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Our experiment covers the range in Q2 from 0.7 to 2.2 GeV2, and W from 2.0 to 2.6 GeV. Taken together with all previous data, we find a consistent picture of φ production on the proton. Our measurement shows the expected decrease of the t slope with the vector-meson formation time cΔτ below 2 fm. At ⟨cΔτ⟩=0.6 fm, we measure bφ=2.27±0.42 GeV−2. The cross section dependence on W as W0.2±0.1 at Q2=1.3 GeV2 was determined by comparison with φ production at HERA after correcting for threshold effects. This is the same dependence as observed in photoproduction. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/413f194a-30e0-41b6-866c-8820dee1b18f
- author
- Lukashin, K.
; Fissum, Kevin
LU
and Zhou, Z.
- author collaboration
- publishing date
- 2001
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C: covering nuclear physics
- volume
- 63
- issue
- 6
- pages
- 065205 - 065205
- publisher
- American Physical Society
- external identifiers
-
- scopus:14344269390
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.63.065205
- project
- Production of Mesons with Electromagnetic Beams
- language
- English
- LU publication?
- no
- id
- 413f194a-30e0-41b6-866c-8820dee1b18f
- date added to LUP
- 2019-06-24 11:47:39
- date last changed
- 2022-01-31 22:23:54
@article{413f194a-30e0-41b6-866c-8820dee1b18f,
abstract = {{We studied the exclusive reaction e→pe′p′φ using the →φK+K− decay mode. The data were collected using a 4.2 GeV incident electron beam and the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Our experiment covers the range in Q2 from 0.7 to 2.2 GeV2, and W from 2.0 to 2.6 GeV. Taken together with all previous data, we find a consistent picture of φ production on the proton. Our measurement shows the expected decrease of the t slope with the vector-meson formation time cΔτ below 2 fm. At ⟨cΔτ⟩=0.6 fm, we measure bφ=2.27±0.42 GeV−2. The cross section dependence on W as W0.2±0.1 at Q2=1.3 GeV2 was determined by comparison with φ production at HERA after correcting for threshold effects. This is the same dependence as observed in photoproduction.}},
author = {{Lukashin, K. and Fissum, Kevin and Zhou, Z.}},
issn = {{2469-9985}},
language = {{eng}},
number = {{6}},
pages = {{065205--065205}},
publisher = {{American Physical Society}},
series = {{Physical Review C: covering nuclear physics}},
title = {{Exclusive electroproduction of φ mesons at 4.2 GeV}},
url = {{http://dx.doi.org/10.1103/PhysRevC.63.065205}},
doi = {{10.1103/PhysRevC.63.065205}},
volume = {{63}},
year = {{2001}},
}