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Cross-section measurement of charged-pion photoproduction from hydrogen and deuterium
- Zhu, LY (author)
- Arrington, J (author)
- Averett, T (author)
- show more...
- Beise, E (author)
- Calarco, J (author)
- Chang, T (author)
- Chen, JP (author)
- Chudakov, E (author)
- Coman, M (author)
- Clasie, B (author)
- Crawford, C (author)
- Dieterich, S (author)
- Dohrmann, F (author)
- Dutta, D (author)
- Frullani, S (author)
- Gao, H (author)
- Gilman, R (author)
- Glashausser, C (author)
- Gomez, J (author)
- Hafidi, K (author)
- Hansen, JO (author)
- Higinbotham, DW (author)
- Holt, RJ (author)
- de Jager, CW (author)
- Jiang, X (author)
- Kinney, E (author)
- Kramer, K (author)
- Kumbartzki, G (author)
- LeRose, J (author)
- Liyanage, N (author)
- Mack, D (author)
- Markowitz, P (author)
- McCormick, K (author)
- Meekins, D (author)
- Meziani, ZE (author)
- Michaels, R (author)
- Mitchell, J (author)
- Nanda, S (author)
- Potterveld, D (author)
- Ransome, R (author)
- Reimer, PE (author)
- Reitz, B (author)
- Saha, A (author)
- Schulte, EC (author)
- Seely, J (author)
- Sirca, S (author)
- Strauch, S (author)
- Sulkosky, V (author)
- Vlahovic, B (author)
- Weinstein, LB (author)
- Wijesooriya, K (author)
- Williamson, CF (author)
- Wojtsekhowski, B (author)
- Xiang, H (author)
- Xiong, F (author)
- Xu, W (author)
- Zeng, J (author)
- Zheng, X (author)
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- (creator_code:org_t)
- 2003
- 2003
- English.
- In: Physical Review Letters. - 1079-7114. ; 91:2: 022003
- Journal article (peer-reviewed)
Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Physical Review Letters (Search for host publication in LIBRIS)
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- By the author/editor
- Zhu, LY
- Arrington, J
- Averett, T
- Beise, E
- Calarco, J
- Chang, T
- show more...
- Chen, JP
- Chudakov, E
- Coman, M
- Clasie, B
- Crawford, C
- Dieterich, S
- Dohrmann, F
- Dutta, D
- Fissum, Kevin
- 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
- Zheng, X
- show less...
- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
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- and Subatomic Physic ...
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- Physical Review ...
- By the university
- Lund University
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