Measurements of exclusive photoproduction processes at large values of t and u from 4 to 7.5 GeV

R.L. Anderson; D.B. Gustavson; D.M. Ritson; G.A. Weitsch; H.J. Halpern; R. Prepost; Donald H. Tompkins; D.E. Wiser

doi:10.1103/PhysRevD.14.679

Measurements of exclusive photoproduction processes at large values of t and u from 4 to 7.5 GeV

Physical Review D

By: R.L. Anderson, D.B. Gustavson, D.M. Ritson, G.A. Weitsch, H.J. Halpern, R. Prepost, Donald H. Tompkins, and D.E. Wiser

https://doi.org/10.1103/PhysRevD.14.679

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Abstract

Exclusive photoproduction cross sections have been measured for the processes $γ p \to π^{+} n$ , $γ p \to π^{0} p$ , $γ p \to π^{-} Δ^{+ +}$ , $γ p \to ρ^{0} p$ , $γ p \to K^{+} Λ$ , and $γ p \to K^{+} Σ^{0}$ at large $t$ and $u$ values at several energies for each process between 4 and 7.5 GeV. These measurements taken together with past data taken at small values of $t$ and $u$ provide complete angular distributions. The data show the usual small $t$ and $u$ peaks and a central region in which the cross section decreases approximately as $s^{- 7}$ . The results are discussed within the context of parton or constituent models.

Suggested Citation

Anderson, R., Gustavson, D., Ritson, D., Weitsch, G., Halpern, H., Prepost, R., Tompkins, D.H., Wiser, D., 1976, Measurements of exclusive photoproduction processes at large values of t and u from 4 to 7.5 GeV: Physical Review D, v. 14, no. 3, p. 679-697, https://doi.org/10.1103/PhysRevD.14.679.

Additional publication details
Publication type	Article
Publication Subtype	Journal Article
Title	Measurements of exclusive photoproduction processes at large values of t and u from 4 to 7.5 GeV
Series title	Physical Review D
DOI	10.1103/PhysRevD.14.679
Volume	14
Issue	3
Publication Date	August 01, 1976
Year Published	1976
Language	English
Publisher	APS Physics
Description	19 p.
First page	679
Last page	697