Measurement of {pi}{sup -}p{yields}{pi}{sup 0}n in the vicinity of the {eta} threshold

Journal Article · Fri Jul 01 00:00:00 EDT 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.015205· OSTI ID:20698857

Starostin, A; Prakhov, S; Nefkens, B M.K.; Clajus, M; Marusic, A; McDonald, S; Phaisangittisakul, N; Price, J W; Tippens, W B ^[1]; Abaev, V V; Bekrenev, V S; Kozlenko, N G; Kruglov, S P; Kulbardis, A A; Lopatin, I V ^[2]; Allgower, C E; Spinka, H ^[3]; Briscoe, W J; Shafi, A ^[4]; Comfort, J R ^[5]

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1. University of California Los Angeles, Los Angeles, California 90095-1547 (United States)
2. Petersburg Nuclear Physics Institute, RU-188300 Gatchina (Russian Federation)
3. Argonne National Laboratory, Argonne, Illinois 60439-4815 (United States)
4. George Washington University, Washington, DC 20052-0001 (United States)
5. Arizona State University, Tempe, Arizona 85287-1504 (United States); and others

We report a new measurement of the differential cross section for {pi}{sup -}p{yields}{pi}{sup 0}n from p{sub {pi}}=649 to 752 MeV/c, which is around the opening of the {eta} channel (685 MeV/c). Our data support the main features of the {pi}{sup -}p charge-exchange differential cross sections generated by the SAID {pi}N partial-wave analysis. The opening of the {eta} channel has a clear effect on the shape of the excitation function for d{sigma}({pi}{sup -}p{yields}{pi}{sup 0}n), which is most noticeable in the backward direction.

• OSTI ID: 20698857
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARGE EXCHANGE
EXCITATION FUNCTIONS
MEV RANGE
NEUTRONS
PARTIAL WAVES
PION MINUS REACTIONS
PION-PROTON INTERACTIONS
PIONS NEUTRAL