Charge Symmetry Breaking in the Reaction $n p \to d \pi^0$

Niskanen, Jouni A.; Sebestyen, M.; Thomas, Anthony William

doi:10.1103/PhysRevC.38.838

Charge Symmetry Breaking in the Reaction $n p \to d \pi^0$

Jouni A. Niskanen
(
- Adelaide U.
)
,
M. Sebestyen
(
- Adelaide U.
)
,
Anthony William Thomas
(
- Adelaide U.
)

May, 1987

23 pages

Published in:

Phys.Rev.C 38 (1988) 838-845

DOI:

10.1103/PhysRevC.38.838

Report number:

ADP-87-20-T37

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Abstract: (APS)

By extending a coupled channels model which has proven successful in describing the reaction pp→π+d, we make predictions for charge symmetry breaking effects in the reaction np→dπ0. We find that nucleon and delta mass differences at vertices where pions are emitted or absorbed are important (as for np elastic scattering). However, η-π0 mixing is also important in pion production. We predict forward-backward asymmetries in the pion production differential cross section as large as 1% (for laboratory energies below 800 MeV). The asymmetries induced in polarization observables are small.

P N: INTERACTION
INTERACTION: P N
DEUTERON: HADROPRODUCTION
HADROPRODUCTION: DEUTERON
PI0: HADROPRODUCTION
HADROPRODUCTION: PI0
CHARGE: SYMMETRY BREAKING
PARTIAL WAVE ANALYSIS: COUPLED CHANNEL
MASS DIFFERENCE: (N P)
(N P): MASS DIFFERENCE

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Charge Symmetry Breaking in the Reaction np→dπ0n p \to d \pi^0np→dπ0

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Charge Symmetry Breaking in the Reaction $n p \to d \pi^0$