Effect of the Nuclear Medium on the Proton Investigated With the Reaction $^{12}$C ($e$, $e^\prime P$) $^{11}$B

van der Steenhoven, G.; Blok, H.P.; van den Brand, J.F. J.; T. de Forest, Jr; Herder, J.W. A. den; Jans, E.; Keizer, P.H. M.; Lapikás, L.; Mulders, P.J.; Quint, E.N. M.

doi:10.1103/PhysRevLett.57.182

Effect of the Nuclear Medium on the Proton Investigated With the Reaction $^{12}$ C ( $e$ , $e^\prime P$ ) $^{11}$ B

G. van der Steenhoven
(
- Nikhef, Amsterdam and
- Vrije U., Amsterdam
)
,
H.P. Blok
(
- Nikhef, Amsterdam and
- Vrije U., Amsterdam
)
,
J.F. J. van den Brand
(
- Nikhef, Amsterdam
)
,
Jr T. de Forest
(
- Nikhef, Amsterdam
)
,
J.W. A. den Herder
(
- Nikhef, Amsterdam
)

1986

4 pages

Published in:

Phys.Rev.Lett. 57 (1986) 182-185

DOI:

10.1103/PhysRevLett.57.182

View in:

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Abstract: (APS)

A longitudinal-transverse separation has been carried out for the coincident quasifree proton knockout reaction on C12 in the range of three-momentum transfer 0.27-0.46 GeV/c. The deduced ratio of longitudinal and transverse response functions indicates a significant effect of the nuclear medium on the coupling of the virtual photon with the proton. The observed modification of this coupling implies a breakdown of the impulse approximation.

ELECTRON LIGHT NUCLEUS: NUCLEAR REACTION
CARBON
P: EMISSION
EMISSION: P
DIFFERENTIAL CROSS SECTION
STRUCTURE FUNCTION: TRANSVERSE
STRUCTURE FUNCTION: LONGITUDINAL
APPROXIMATION: IMPULSE
MESON: EXCHANGE
EXCHANGE: MESON

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