A Study of the Delta- component of the wave function in light nuclei - INSPIRE

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A Study of the Delta- component of the wave function in light nuclei

Dec, 1999

7 pages

Published in:

Phys.Lett.B 523 (2001) 1-5

e-Print:

nucl-ex/9912004 [nucl-ex]

DOI:

10.1016/S0370-2693(01)01329-6

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Abstract:

We have measured cross sections for the

(\pi^+,\pi^\pm p)

reactions on

{\rm ^3H}

,

{\rm ^4He}

,

{\rm ^6Li}

and

{\rm ^7Li}

in quasi-free kinematics at incident pion beam energy 500 MeV. An enhancement of the

(\pi^+,\pi^- p)

cross section in this kinematics is observed. If this is interpreted as due to quasi-free scattering from pre-existing

\Delta

components of the nuclear wave function, the extracted probabilities are in agreement with theoretical expectations.

Note:

3 pages, 3 figures, 1 table

pi+ nucleus: inclusive reaction
tritium
helium
lithium: nuclide
p: emission
Delta(1232)-
charge exchange: multiple
light nucleus: wave function
dependence: mass number
magnetic spectrometer: experimental results

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