$π^{-} p$ Elastic Scattering Near 180° at 8 and 16 GeV/c

Publisher Website

24 June 1968

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 20 (26) , 1529-1532
https://doi.org/10.1103/physrevlett.20.1529

Abstract

We report differential cross sections for

π^{-} p

elastic scattering near 180° at incident pion momenta of 8 and 16 GeV/c. For

| u | < 0.5

{(G e V / c)}^{2}

the formula

\frac{d σ}{du} = A \exp (Bu)

fits the data very well. At 8 GeV/c,

A = 3.75 \pm 0.35

μb/

{(G e V / c)}^{2}

and

B = 3.16 \pm 0.24

{(G e V / c)}^{- 2}

. At 16 GeV/c,

A = 0.91 \pm 0.13

μb/

{(G e V / c)}^{2}

and

B = 4.23 \pm 0.40

{(G e V / c)}^{- 2}

. A Reggepole model fit to these data gives for the

Δ_{δ}

trajectory

α (u) = (- 0.06 \pm 0.12) + (0.8 \pm 0.3) u

.

Keywords

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