"Table 5" 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.

以下评论均取自R.L.凯利（R.L. Kelly）的πN（π介子-核子）数据集汇编。本部分为该汇编中与当前论文同属一项实验（编号为MARTIN74）的相关论文的完整评论集。（每篇论文的参考文献及评论前的标识符仅用于本评论集内部的交叉引用，未必与当前汇编其他位置使用的短代码一致。）
MARTIN72 [J. F. 马丁与J. C. 斯利曼，私人通信，1972年]——SLEEMAN74数据集的早期版本。
MARTIN72T [J. F. 马丁，HEP/T/35（牛津大学博士论文），1972年]——针对1.4 GeV/c以上能区数据的博士研究论文。
SLEEMAN74 [J. C. 斯利曼，私人通信，1974年]——包含本实验最终结果的数据磁带与结果清单。
THRESHER74 [J. J. 思雷舍，私人通信，1974年]——SLEEMAN74数据磁带中的每个数据点均记录了统计误差与系统误差两类误差。在拟合程序中合理处理这两类误差并非易事，尤其根据MARTIN72T与THRESHER74的描述，不同分箱间的系统误差往往存在一定相关性。但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方和根法合并，且未考虑不同分箱之间的相关性。
MARTIN74 [J. F. 马丁，RL-74-016，1974年]——MARTIN75的预印本版本，与MARTIN75内容不完全一致。
MARTIN75 [J. F. 马丁，NP B89, 253(1975)]——针对68个动量介于603至2651 MeV/c区间的π⁺P（π⁺质子）极化散射数据。实验在NIMROD装置上开展，采用LMN靶、闪烁计数器描迹仪（scintillation counter hodoscope）与切伦科夫计数器（Cherenkov counter）以解决运动学歧义区域并压低本底。整体归一化不确定度记为±6%，每个动量点的残余不确定度为±2%。但该表述存在过度简化问题：实验同时采集了动量间隔约1.9%的动量对数据，此类动量对的残余不确定度为2%，但二者的归一化完全相关。MARTIN75数据集与SLEEMAN74数据集并不相同。
关于凯利对LOVELACE71汇编的修改说明——LOVELACE71版本的数据源自MARTIN72之前的两个早期数据集版本（LOVELACE71IDS=BROWN70与SLEEMA71），二者存在多处显著差异。实验开展于卢瑟福实验室，采用极化靶。