Measurement of pi-p-->eta n from threshold to p(pi-) = 747 MeV/c (CROSBI ID 115997)
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Podaci o odgovornosti
Prakhov, S. ; Nefkens, B.M.K. ; Allgower, C.E. ; Bekrenev, V. ; Briscoe, W.J. ; Clajus, M. ; Comfort, J.R. ; Craig, K. ; Grosnick, D. ; Huber, G.M. ; Isenhower, D. ; Knecht, N. ; Koetke, D. ; Koulbardis, A. ; Kozlenko, N. ; Kruglov, S. ; Lolos, G. ; Lopatin, I. ; Manley, D.M. ; Manweiler, R. ; Marusic, A. ; McDonald, S. ; Olmsted, J. ; Papandreou, Z. ; Peaslee, D. ; Phaisangittisakul, N. ; Price, J.W. ; Ramirez, A.F. ; Sadler, M. ; Shafi, A. ; Spinka, H. ; Stanislaus, T.D.S. ; Starostin, A. ; Staudenmaier, H.M. ; Supek, Ivan ; Tippens, W.B. ; Workman, R.L.
engleski
Measurement of pi-p-->eta n from threshold to p(pi-) = 747 MeV/c
The differential cross section for eta production in reaction pi-p-->eta n has been measured over the full angular range at seven incident - beam momenta from threshold to p_pi-=747 MeV/c using the Crystal Ball multiphoton spectrometer. The angular distributions are S wave dominated. At 10 MeV/c above threshold, a small D-wave contribution appears that interferes with the main S wave. The total eta production cross section sigma^tot is obtained by integration of d sigma/d omega. Starting at threshold, sigma^tot rises rapidly, as expected for S-wave-dominated production. The features of the pi-p-->eta n cross section are strikingly similar to those of the SU(3) flavor-related process K-p-->eta Lambda. Comparison of the pi-p-->eta n reaction is made with eta photoproduction.
eta production; cross section
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