On the nuclear longitudinal charge response in the quasi-elastic peak region

U. Stroth; R. W. Hasse; P. Schuck

doi:10.1016/0375-9474(87)90378-2

On the nuclear longitudinal charge response in the quasi-elastic peak region

U. Stroth, R. W. Hasse, P. Schuck

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Abstract

We calculate in a semiclassical RPA approach the nuclear charge response of ¹²C, ⁴⁰Ca, and ⁵⁶Fe in the quasi-elastic peak region for moderate momentum transfers (q = 1.0-2.0 fm^-1). Using the Gogny force and taking full account of antisymmetrization effects we find with no free parameters good agreement with the (e, é) data for ¹²C. However for ⁴⁰Ca and ⁵⁶Fe the missing charge problem persists. Arguments that this may be due to strong influence of 2p-2h states in the isovector channel are advanced.

Original language	English
Pages (from-to)	45-60
Number of pages	16
Journal	Nuclear Physics, Section A
Volume	462
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(87)90378-2
State	Published - 19 Jan 1987
Externally published	Yes

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title = "On the nuclear longitudinal charge response in the quasi-elastic peak region",

abstract = "We calculate in a semiclassical RPA approach the nuclear charge response of 12C, 40Ca, and 56Fe in the quasi-elastic peak region for moderate momentum transfers (q = 1.0-2.0 fm-1). Using the Gogny force and taking full account of antisymmetrization effects we find with no free parameters good agreement with the (e, {\'e}) data for 12C. However for 40Ca and 56Fe the missing charge problem persists. Arguments that this may be due to strong influence of 2p-2h states in the isovector channel are advanced.",

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T1 - On the nuclear longitudinal charge response in the quasi-elastic peak region

AU - Stroth, U.

AU - Hasse, R. W.

AU - Schuck, P.

PY - 1987/1/19

Y1 - 1987/1/19

N2 - We calculate in a semiclassical RPA approach the nuclear charge response of 12C, 40Ca, and 56Fe in the quasi-elastic peak region for moderate momentum transfers (q = 1.0-2.0 fm-1). Using the Gogny force and taking full account of antisymmetrization effects we find with no free parameters good agreement with the (e, é) data for 12C. However for 40Ca and 56Fe the missing charge problem persists. Arguments that this may be due to strong influence of 2p-2h states in the isovector channel are advanced.

AB - We calculate in a semiclassical RPA approach the nuclear charge response of 12C, 40Ca, and 56Fe in the quasi-elastic peak region for moderate momentum transfers (q = 1.0-2.0 fm-1). Using the Gogny force and taking full account of antisymmetrization effects we find with no free parameters good agreement with the (e, é) data for 12C. However for 40Ca and 56Fe the missing charge problem persists. Arguments that this may be due to strong influence of 2p-2h states in the isovector channel are advanced.

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U2 - 10.1016/0375-9474(87)90378-2

DO - 10.1016/0375-9474(87)90378-2

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VL - 462

SP - 45

EP - 60

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 1

ER -

On the nuclear longitudinal charge response in the quasi-elastic peak region

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