Cross-section measurement of charged-pion photoproduction from hydrogen and deuterium
(2003) In Physical Review Letters 91(2: 022003).- Abstract
- We have measured the differential cross section for the gamman-->pi(-)p and gammap-->pi(+)n reactions at theta(c.m.)=90degrees in the photon energy range from 1.1 to 5.5 GeV at Jefferson Lab (JLab). The data at E(gamma)greater than or similar to3.3 GeV exhibit a global scaling behavior for both pi(-) and pi(+) photoproduction, consistent with the constituent counting rule and the existing pi(+) photoproduction data. Possible oscillations around the scaling value are suggested by these new data. The data show enhancement in the scaled cross section at a center-of-mass energy near 2.2 GeV. The cross section ratio of exclusive pi(-) to pi(+) photoproduction at high energy is consistent with the prediction based on... (More)
- We have measured the differential cross section for the gamman-->pi(-)p and gammap-->pi(+)n reactions at theta(c.m.)=90degrees in the photon energy range from 1.1 to 5.5 GeV at Jefferson Lab (JLab). The data at E(gamma)greater than or similar to3.3 GeV exhibit a global scaling behavior for both pi(-) and pi(+) photoproduction, consistent with the constituent counting rule and the existing pi(+) photoproduction data. Possible oscillations around the scaling value are suggested by these new data. The data show enhancement in the scaled cross section at a center-of-mass energy near 2.2 GeV. The cross section ratio of exclusive pi(-) to pi(+) photoproduction at high energy is consistent with the prediction based on one-hard-gluon-exchange diagrams. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/306633
- author
- Zhu, LY
; Arrington, J
; Averett, T
; Beise, E
; Calarco, J
; Chang, T
; Chen, JP
; Chudakov, E
; Coman, M
; Clasie, B
; Crawford, C
; Dieterich, S
; Dohrmann, F
; Dutta, D
; Fissum, Kevin
LU
; Frullani, S
; Gao, H
; Gilman, R
; Glashausser, C
; Gomez, J
; Hafidi, K
; Hansen, JO
; Higinbotham, DW
; Holt, RJ
; de Jager, CW
; Jiang, X
; Kinney, E
; Kramer, K
; Kumbartzki, G
; LeRose, J
; Liyanage, N
; Mack, D
; Markowitz, P
; McCormick, K
; Meekins, D
; Meziani, ZE
; Michaels, R
; Mitchell, J
; Nanda, S
; Potterveld, D
; Ransome, R
; Reimer, PE
; Reitz, B
; Saha, A
; Schulte, EC
; Seely, J
; Sirca, S
; Strauch, S
; Sulkosky, V
; Vlahovic, B
; Weinstein, LB
; Wijesooriya, K
; Williamson, CF
; Wojtsekhowski, B
; Xiang, H
; Xiong, F
; Xu, W
; Zeng, J
and Zheng, X
(Less) - organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 91
- issue
- 2: 022003
- publisher
- American Physical Society
- external identifiers
-
- wos:000184086000009
- scopus:0041528345
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.91.022003
- project
- Production of Mesons with Electromagnetic Beams
- language
- English
- LU publication?
- yes
- id
- c93a92e2-7350-4b15-a2a6-55ec846fdc45 (old id 306633)
- date added to LUP
- 2016-04-01 12:34:43
- date last changed
- 2022-03-06 01:27:35
@article{c93a92e2-7350-4b15-a2a6-55ec846fdc45,
abstract = {{We have measured the differential cross section for the gamman-->pi(-)p and gammap-->pi(+)n reactions at theta(c.m.)=90degrees in the photon energy range from 1.1 to 5.5 GeV at Jefferson Lab (JLab). The data at E(gamma)greater than or similar to3.3 GeV exhibit a global scaling behavior for both pi(-) and pi(+) photoproduction, consistent with the constituent counting rule and the existing pi(+) photoproduction data. Possible oscillations around the scaling value are suggested by these new data. The data show enhancement in the scaled cross section at a center-of-mass energy near 2.2 GeV. The cross section ratio of exclusive pi(-) to pi(+) photoproduction at high energy is consistent with the prediction based on one-hard-gluon-exchange diagrams.}},
author = {{Zhu, LY and Arrington, J and Averett, T and Beise, E and Calarco, J and Chang, T and Chen, JP and Chudakov, E and Coman, M and Clasie, B and Crawford, C and Dieterich, S and Dohrmann, F and Dutta, D and Fissum, Kevin and Frullani, S and Gao, H and Gilman, R and Glashausser, C and Gomez, J and Hafidi, K and Hansen, JO and Higinbotham, DW and Holt, RJ and de Jager, CW and Jiang, X and Kinney, E and Kramer, K and Kumbartzki, G and LeRose, J and Liyanage, N and Mack, D and Markowitz, P and McCormick, K and Meekins, D and Meziani, ZE and Michaels, R and Mitchell, J and Nanda, S and Potterveld, D and Ransome, R and Reimer, PE and Reitz, B and Saha, A and Schulte, EC and Seely, J and Sirca, S and Strauch, S and Sulkosky, V and Vlahovic, B and Weinstein, LB and Wijesooriya, K and Williamson, CF and Wojtsekhowski, B and Xiang, H and Xiong, F and Xu, W and Zeng, J and Zheng, X}},
issn = {{1079-7114}},
language = {{eng}},
number = {{2: 022003}},
publisher = {{American Physical Society}},
series = {{Physical Review Letters}},
title = {{Cross-section measurement of charged-pion photoproduction from hydrogen and deuterium}},
url = {{http://dx.doi.org/10.1103/PhysRevLett.91.022003}},
doi = {{10.1103/PhysRevLett.91.022003}},
volume = {{91}},
year = {{2003}},
}