"Table 90" of "Polarization Measurements in pi+ p Elastic Scattering from 0.6-GeV/c to 2.65-GeV/c"

THE FOLLOWING COMMENTS ARE TAKEN FROM THE PI N COMPILATION OF R.L. KELLY. THEY ARE THAT COMPILATION& apos;S COMPLETE SET OF COMMENTS FOR PAPERS RELATED TO THE SAME EXPERIMENT (DESIGNATED MARTIN74) 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.) /// MARTIN72 [J. F. MARTIN AND J. C. SLEEMAN,PRIV. COMM.,1972] -- PRELIMINARY VERSION OF SLEEMAN74 DATA. /// MARTIN72T [J. F. MARTIN,HEP/T/35(OXFORD THESIS),1972.] -- THESIS ON DATA ABOVE 1.4 GEV/C. /// SLEEMAN74 [J. C. SLEEMAN,PRIV. COMM.,1974.] -- DATA TAPE AND LISTING OF FINAL RESULTS OF THE EXPERIMENT. /// THRESHER74 [J. J. THRESHER,PRIV. COMM.,1974.] -- TWO ERRORS,STATISTICAL AND SYSTEMATIC,ARE RECORDED FOR EACH DATA POINT ON THE SLEEMAN74 DATA TAPE. DECIDING HOW TO USE THESE PROPERLY IN A FITTING PROGRAM IS NOT STRAIGHTFORWARD,PARTICULARLY SINCE (ACCORDING TO MARTIN72T AND THRESHER74) THE SYSTEMATIC ERRORS TEND TO BE SOMEWHAT CORRELATED BETWEEN DIFFERENT BINS. HOWEVER,THE CORRELATION BETWEEN THE STATISTICAL AND SYSTEMATIC ERROR IN A SINGLE BIN IS NOT LARGE,THE FIRST COMING MAINLY FROM EVENT COUNTING AND THE SECOND MAINLY FROM BACKGROUND ESTIMATION (SEE MARTIN72T). ON ADVICE OF THRESHER74 WE HAVE COMBINED THE STATISTICAL AND SYSTEMATIC ERRORS FOR EACH BIN IN QUADRATURE,AND HAVE NOT ATTEMPTED TO TAKE CORRELATIONS BETWEEN DIFFERENT BINS INTO ACCOUNT. /// MARTIN74 [J. F. MARTIN,RL-74-016,1974.] -- PREPRINT VERSION OF MARTIN75. NOT IDENTICAL TO MARTIN75. /// MARTIN75 [J. F. MARTIN,NP B89,253(1975)] -- PI+ P POL AT 68 MOMENTA BETWEEN 603 AND 2651 MEV/C. DONE AT NIMROD WITH LMN TARGET,SCINTILLATION COUNTER HODOSCOPES,AND CHERENKOV COUNTERS TO RESOLVE THE REGION OF KINEMATIC AMBIGUITY AND REDUCE BACKGROUND. THE NE IS RECORDED AS +/-6 PCT OVERALL AND +/-2 PCT RESIDUAL AT EACH MOMENTUM. THIS IS AN OVERSIMPLIFICATION AS DATA WERE TAKEN SIMULTANEOUSLY AT PAIRS OF MOMENTA SEPARATED BY ABOUT 1.9 PCT. THE RESIDUAL NE OF SUCH A PAIR IS 2 PCT,BUT THE NORMALIZATIONS FOR THE TWO MEMBERS OF THE PAIR ARE 100 PCT CORRELATED. THE MARTIN75 DATA ARE NOT THE SAME AS THE SLEEMAN74 DATA. /// COMMENTS ON MODIFICATIONS TO LOVELACE71 COMPILATION BY KELLY -- LOVELACE71 VERSION COMES FROM TWO PRELIMINARY VERSIONS OF THE DATA EARLIER THAN MARTIN72 (LOVELACE71IDS=BROWN70 AND SLEEMA71). MANY MAJOR DIFFERENCES. RUTHERFORD, POLARIZED TARGET.以下评论取自R.L.凯利的π介子编译数据集。这些评论是该编译集中所有与当前论文同属一项编号为MARTIN74的实验的相关论文的完整评论集合。（每篇论文的参考文献与评论前的标识符仅用于本评论集内部的交叉引用，未必与当前编译集中其他位置使用的短代码一致。） /// MARTIN72 [J. F. MARTIN AND J. C. SLEEMAN, 私人通信（priv. comm.）, 1972] —— SLEEMAN74数据的初步版本。 /// MARTIN72T [J. F. MARTIN, HEP/T/35(OXFORD THESIS), 1972.] —— 针对1.4 GeV/c以上能区数据的牛津大学学位论文。 /// SLEEMAN74 [J. C. SLEEMAN, 私人通信（priv. comm.）, 1974.] —— 包含该实验最终结果的数据磁带与结果清单。 /// THRESHER74 [J. J. THRESHER, 私人通信（priv. comm.）, 1974.] — SLEEMAN74数据磁带的每个数据点均附带统计误差与系统误差两类误差。在拟合程序中合理处理此类误差并非易事——根据MARTIN72T与THRESHER74的描述，不同数据分箱（bin）间的系统误差往往存在一定相关性。不过，单个分箱内统计误差与系统误差的相关性并不显著：前者主要源于事件计数，后者则主要来自本底估计（详见MARTIN72T）。遵照THRESHER74的建议，我们对每个分箱的统计误差与系统误差采用正交合成（quadrature）的方式合并，且未考虑不同分箱间的相关性。 /// MARTIN74 [J. F. MARTIN, RL-74-016, 1974.] —— MARTIN75的预印本版本，与MARTIN75并不完全一致。 /// MARTIN75 [J. F. MARTIN, NP B89, 253(1975)] —— 针对603至2651 MeV/c共68个动量点的π⁺-p散射实验数据，实验在NIMROD加速器装置上开展，采用LMN靶、闪烁计数器描迹仪（hodoscope）与切伦科夫计数器（Cherenkov counters）以解决运动学歧义区域并压低本底。实验记录的整体归一误差为±6%，每个动量点的剩余归一误差为±2%。但这一描述过于简化：实验同时采集了间距约1.9%的动量对的数据，此类动量对的剩余归一误差为2%，但该对中两个数据点的归一化存在100%的相关性。MARTIN75数据与SLEEMAN74数据并不相同。 /// 关于凯利对LOVELACE71编译集的修改说明——LOVELACE71版本的数据源自早于MARTIN72的两个预发布版本（LOVELACE71的标识符对应BROWN70与SLEEMA71），二者存在诸多显著差异。实验采用卢瑟福极化靶。