Neutral pion photoproduction from a liquid deuterium target was measured in the energy region near 300 MeV at the LEGS facility of Brookhaven National Laboratory. The inclusive cross sections from deuterium are in agreement with measurments from Mainz, yet the exclusive cross sections and spin asymmetries for neutral pion production in coincidence with a detected nucleon are much smaller than expected from a quasi-free approximation. This may indicate that substantial final state interactions play a significant role, which will complicate the extraction of the desired amplitudes that would be measured if a free neutron target could be used.

Hicks, K., Ardashev, K., Blecher, M., Caracappa, A., Cichocki, A., Commeaux, C., et al. (2002). Neutral pion production from deuterium at the LEGS facility. In PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC INTERACTIONS IN NUCLEAR AND HADRON PHYSICS (pp.144-150). SINGAPORE -- SGP : World Scientific Publishing Co..

Neutral pion production from deuterium at the LEGS facility

D'ANGELO, ANNALISA;SCHAERF, CARLO;
2002-01-01

Abstract

Neutral pion photoproduction from a liquid deuterium target was measured in the energy region near 300 MeV at the LEGS facility of Brookhaven National Laboratory. The inclusive cross sections from deuterium are in agreement with measurments from Mainz, yet the exclusive cross sections and spin asymmetries for neutral pion production in coincidence with a detected nucleon are much smaller than expected from a quasi-free approximation. This may indicate that substantial final state interactions play a significant role, which will complicate the extraction of the desired amplitudes that would be measured if a free neutron target could be used.
International Symposium on Electromagnetic Interactions in Nuclear and Hadron Physics
Osaka, Japan
2001
Rilevanza internazionale
su invito
2001
2002
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
DELTA REGION; PHOTOPRODUCTION; SPECTROMETER; PHOTONS
Intervento a convegno
Hicks, K., Ardashev, K., Blecher, M., Caracappa, A., Cichocki, A., Commeaux, C., et al. (2002). Neutral pion production from deuterium at the LEGS facility. In PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC INTERACTIONS IN NUCLEAR AND HADRON PHYSICS (pp.144-150). SINGAPORE -- SGP : World Scientific Publishing Co..
Hicks, K; Ardashev, K; Blecher, M; Caracappa, A; Cichocki, A; Commeaux, C; D'Angelo, A; Didilez, J; Deininger, R; Hoblit, S; Khandaker, M; Kistner, O; Kuczewski, A; Lincoln, F; Lindgren, R; Lehmann, A; Lowry, M; Lucas, M; Meyer, H; Miceli, L; Opper, A; Preedom, B; Norum, B; Sandorfi, A; Schaerf, C; Stroher, H; Thorn, C; Tonnison, J; Wang, K; Wei, X; Whisnant, C; Willits, D
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/96514
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