DOUBLE ANALOG TRANSITION C-14 (PI+, PI-) O-14 AT 50-MEV

Leitch, M.J.; Piasetzky, E.; Baer, H.W.; Bowman, J.D.; Burman, R.L.; Dropesky, B.J.; Gram, P.A.M.; Irom, F.; Roberts, D.; Rebka, G.A.

doi:10.1103/PhysRevLett.54.1482

DOUBLE ANALOG TRANSITION C-14 (PI+, PI-) O-14 AT 50-MEV

1985

4 pages

Published in:

Phys.Rev.Lett. 54 (1985) 1482-1485

DOI:

10.1103/PhysRevLett.54.1482

View in:

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Abstract: (APS)

Differential cross sections for the double-isobaric-analog-state transition in the reaction C14(π+, π−)O14 were measured over the angular range 20° to 130°. The cross section extrapolated to 0° is 3.9±0.5 μb/sr and the angle-integrated cross section is 15.3±1.6 μb. These values are much larger than expected from the trends of data at higher energies and may indicate the presence of new phenomena. The results are compared to recent six-quark bag-model calculations which predict such trends.

pi+ nucleus: nuclear reaction
charge exchange: multiple
multiple: charge exchange
carbon: nuclide
quark: multiquark
bag model
differential cross section: angular dependence
angular dependence: differential cross section
magnetic spectrometer: experimental results
LAMPF Linac

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Figures(0)

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