Digital Repository at the University of Maryland (DRUM)  >
College of Computer, Mathematical & Natural Sciences  >
Physics  >
Physics Research Works 

Please use this identifier to cite or link to this item: http://hdl.handle.net/1903/11367

Title: Cross-Section Measurement of Charged-Pion Photoproduction from Hydrogen and Deuterium
Authors: Zhu, L.Y.
Arrington, J.
Averett, T.
Beise, E.
Calarco, J.
Chang, T.
Chen, J.P.
Chudakov, E.
Coman, M.
Clasie, B.
Crawford, C.
Dieterich, S.
Dohrmann, F.
Dutta, D.
Fissum, K.
Frullani, S.
Gao, H.
Gilman, R.
Glashausser, C.
Gomez, J.
Hafidi, K.
Hansen, J.-O.
Higinbotham, D.W.
Holt, R.J.
de Jager, C.W.
Jiang, X.
Kinney, E.
Kramer, K.
Kumbartzki, G.
LeRose, J.
Liyanage, N.
Mack, D.
Markowitz, P.
McCormick, K.
Meekins, D.
Meziani, Z.-E.
Michaels, R.
Mitchell, J.
Nanda, S.
Potterveld, D.
Ransome, R.
Reimer, P.E.
Reitz, B.
Saha, A.
Schulte, E.C.
Seely, J.
Sirca, S.
Strauch, S.
Sulkosky, V.
Vlahovic, B.
Weinstein, L.B.
Wijesooriya, K.
Williamson, C.F.
Wojtsekhowski, B.
Xiang, H.
Xiong, F.
Xu, W.
Zeng, J.
Zheng, X.
Jefferson Lab Hall A Colloboration
Type: Article
Keywords: hydrogen
deuterium
pions
photoproduction
Issue Date: 11-Jun-2003
Publisher: American Physical Society
Citation: Zhu, L.Y. et al. "Cross-Section Measurement of Charged-Pion Photoproduction from Hydrogen and Deuterium." Physical Review Letters 91, no. 2 (2003): 022003.
Abstract: We have measured the differential cross section for the γn→π-p and γp→π+n reactions at θc.m.=90° in the photon energy range from 1.1 to 5.5 GeV at Jefferson Lab (JLab). The data at Eγ≳3.3   GeV exhibit a global scaling behavior for both π- and π+ photoproduction, consistent with the constituent counting rule and the existing π+ 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 π- to π+ photoproduction at high energy is consistent with the prediction based on one-hard-gluon-exchange diagrams.
Required Publisher Statement: © 2003 The American Physical Society
URI: http://hdl.handle.net/1903/11367
Appears in Collections:Physics Research Works

Files in This Item:

File Description SizeFormatNo. of Downloads
PhysRevLett.91.022003.pdf133.64 kBAdobe PDF190View/Open

All items in DRUM are protected by copyright, with all rights reserved.

 

DRUM is brought to you by the University of Maryland Libraries
University of Maryland, College Park, MD 20742-7011 (301)314-1328.
Please send us your comments