New evidence for the p-11(1470) resonance in pi- p ---> n pi0 below 600 mev

Hauser, M.G. , Chen, K.W. , Crean, P.A.
Phys.Lett.B 35 (1971) 252-256, 1971.

Abstract (data abstract)
TECHNIQUE USED...NEUTRON COUNTER. SYSTEMATIC ERROR INFO DELETED BY GCF AS TOO MUCH FOR COMPUTER TO HANDLE.. M.G.HAUSER ET AL. PRINCETON PREPRINT + PRIV.COMM.(71) Table 20 onwards are from the compilation of R.L.Kelly: 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 HAUSER71) 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.) /// HAUSER71 [M. G. HAUSER,PL 35B,252(1971).] -- MEASUREMENT OF PI- P CEX DCS AT 13 MOMENTA BETWEEN 250 AND 699 MEV/C AT THE PPA. CHARGED EVENTS WERE VETOED IN COUNTERS SURROUNDING THE TARGET,AND NEUTRON TIME-OF-FLIGHT AND PULSE HEIGHT WERE MEASURED IN 8 LIQUID SCINTILLATION COUNTERS AT 6 DIFFERENT ANGLES. /// CREAN70 [P. A. CREAN,PRINCETON THESIS,1970.] -- DETAILED EXPLANATION OF EXPERIMENT. GIVES SEPERATE DATA TABLES AND NE FOR EACH NEUTRON COUNTER. /// CHEN70 [K. W. CHEN,NUC. INSTR. AND METH. 88,219(1970)] -- CALIBRATION OF NEUTRON COUNTER EFFICIENCIES. /// CHEN71 [K. W. CHEN,PL 35B,257(1971)] -- TEST OF CHARGE INDEPENDENCE USING DATA OF HAUSER71. /// COMMENTS FROM LOVELACE71 COMPILATION OF THESE DATA -- DATA IS TAKEN FROM PREPRINT AND PRIV. COMM. (1971),AND IS RESCALED TO AGREE WITH SOLUTION AT 225 MEV (337 MEV/C) THEN INTERPOLATED. DATA AT 300 MEV/C AND BELOW IS PUT IN A SPECIAL SECTION FOR DATA THAT DISAGREE SEVERELY WITH OTHERS. /// COMMENTS ON MODIFICATIONS TO LOVELACE71 COMPILATION BY KELLY -- WE RECORD THE DATA TABLES FOR EACH NEUTRON COUNTER FROM CREAN70.

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