Determination of the charged pion - nucleon coupling constant from anti-p p ---> anti-n n differential cross-section

Bradamante, F.; Bressan, A.; Lamanna, M.; Martin, A.

doi:10.1016/0370-2693(94)01565-T

Determination of the charged pion - nucleon coupling constant from anti-p p ---> anti-n n differential cross-section

F. Bradamante
(
- Trieste U. and
- INFN, Trieste
)
,
A. Bressan
(
- Trieste U. and
- INFN, Trieste
)
,
M. Lamanna
(
- Trieste U. and
- INFN, Trieste
)
,
A. Martin
(
- Trieste U. and
- INFN, Trieste
)

Nov, 1994

6 pages

Published in:

Phys.Lett.B 343 (1995) 431-435

DOI:

10.1016/0370-2693(94)01565-T

Report number:

CERN-PPE-94-211

Experiments:

CERN-PS-206

View in:

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Abstract: (Elsevier)

A recent experiment at LEAR, the CERN Low Energy Antiproton Ring, has provided very precise differential cross-section data for the p p → n n charge-exchange reaction. Extrapolating the data to the pion pole we have determined the charged-pion coupling constant to be f c 2 = 0.071 ± 0.002 from the data at 601 MeV/ c . Details of the fitting procedure are given, as well as results obtained when applying the same method to recent np → pn data.

anti-p p: charge exchange
charge exchange: anti-p p
n: pair production
pair production: n
p n: charge exchange
charge exchange: p n
differential cross section
coupling constant: (nucleon pi)
(nucleon pi): coupling constant
pi: pole

References(14)

Figures(0)

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