CUSP IN PI- P ELASTIC SCATTERING AT THE ETA THRESHOLD

Nucl.Phys.B 161 (1979) 1-13, 1979.

Abstract (data abstract)
RUTHERFORD LABORATORY. AROUND ETA THRESHOLD. Second and subsequent tables merged from another record (BINNIE, PRIV COMM, 1976) with original comments below. THE FOLLOWING COMMENTS ARE TAKEN FROM THE PI N COMPILATION OF R.L. KELLY. THEY ARE THAT COMPILATION'S COMPLETE SET OF COMMENTS FOR PAPERS RELATED TO THE SAME EXPERIMENT (DESIGNATED BINNIE76) AS THE CURRENT PAPER. (THE IDENTIFIER PRECEDING THE REFERENCE AND COMMENT FOR EACH PAPER IS FOR CROSS-REFERENCING WITHIN THESE COMMENTS ONLY AND DOES NOT NECESSARILY AGREE WITH THE SHORT CODE USED ELSEWHERE IN THE PRESENT COMPILATION.) /// BINNIE76 [D. M. BINNIE AND SARMA,PRIV. COMM.,1976.] -- PRELIMINARY DATA SUBJECT TO CHANGE. PI- P DCS AT 15 ANGLES IN 1 MEV/C STEPS BETWEEN 665.5 AND 704.5 MEV/C. PAGES FROM DRAFT OF SARMA'S THESIS INCLUDE TABLES OF THESE DATA,AND OF THE EXTRACTED ANGULAR VARIATION OF THE PHASE OF THE SPIN-NON-FLIP AMPLITUDE AT THE ETA NEUTRON THRESHOLD. /// BINNIE77 [D. M. BINNIE,PRIV. COMM.,1977.] -- NORMALIZATIONS OF THESE DATA MAY BE WRONG,AND BINNIE CAN NOT ESTIMATE ERRORS. THE EXTRACTED PHASE PARAMETERS AT EACH ANGLE SHOULD STILL BE ALRIGHT.. SYSTEMATIC ERROR CORRELATIONS TOO COMPLICATED TO ENCODE. SEE ORIGINAL PAPER FOR DETAILS.