"Table 16" of "eta and eta-prime Production near Thresholds and Backward Charge-Exchange Differential Cross Section in pi--p Reactions"

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 HYMAN68) 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.) /// HYMAN68 [E. HYMAN,PR 165,1437(1968).] -- CEX DCS NEAR 180 DEGREES AT 720,750,780,AND 805 MEV/C. DONE AT COSMOTRON USING NEUTRON TIME OF FLIGHT (WITH ABOUT 15 PCT NEUTRON DETECTION EFFICIENCY) AND CHARGED PARTICLE VETO COUNTERS SURROUNDING THE TARGET. THIS WAS PRIMARILY AN ETA PRODUCTION EXPERIMENT WHICH ALSO PRODUCED CEX DATA. THE SAME NEUTRON DETECTION EFFICIENCY WAS USED FOR THE CEX NEUTRONS AS FOR THE ETA PRODUCTION NEUTRONS THOUGH IT IS STATED THAT THE EFFICIENCY MAY BE AS MUCH AS 25 PCT HIGHER FOR CEX. AT 720 AND 780 MEV/C THE DATA APPEAR TO BE SYSTEMATICALLY LARGER THAN THOSE OF CHIU67 BY AN AMOUNT OF ORDER 10 TO 20 PCT. THUS WE RECORD THE OVERALL NE AS UNKNOWN,BUT KEEP THE +/-15 PCT RELATIVE NE BETWEEN DIFFERENT NEUTRON COUNTERS GIVEN BY HYMAN68. /// COMMENTS ON MODIFICATIONS TO LOVELACE71 COMPILATION BY KELLY -- LOVELACE71 RECORDS AN OVERALL NE OF 7 PCT (THE SAME AS FOR ETA PRODUCTION) AND NO RELATIVE NE.. SYSTEMATIC ERROR CORRELATIONS TOO COMPLICATED TO ENCODE. SEE ORIGINAL PAPER FOR DETAILS.以下评论取自R.L.凯利（R.L. Kelly）的π-N（pi-nucleon）编译集。本部分为该编译集中所有与当前论文所属实验（编号为HYMAN68）相关的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，未必与当前编译集其他位置使用的短代码一致。） /// HYMAN68 [E. HYMAN,PR（Physical Review）165卷, 1437页(1968年)]——该实验在720、750、780及805 MeV/c动量下测得近180°的CEX（Charge Exchange，电荷交换）DCS（Differential Cross Section，微分截面）。实验于宇宙加速器（Cosmotron）上开展，采用中子飞行时间法（中子探测效率约15%）与靶区周围的带电粒子反符合计数器。本实验以ETA（η介子，eta meson）产生为核心研究目标，同时获取了电荷交换相关数据。尽管文中提及电荷交换过程的中子探测效率可能比η介子产生过程高至多25%，但实验仍对电荷交换中子与η介子产生中子采用了相同的探测效率设定。在720与780 MeV/c动量下，该实验数据相较于CHIU67的结果系统性偏高约10%至20%。因此，我们将整体NE（Neutron Detection Efficiency，中子探测效率）记为未知，但保留HYMAN68给出的不同中子计数器间±15%的相对探测效率误差。 /// 关于凯利对LOVELACE71编译集的修改说明——LOVELACE71将整体中子探测效率记为7%（与η介子产生过程的效率一致），且未给出相对探测效率误差。其系统误差关联过于复杂，无法进行编码化处理，详细信息请参阅原始论文。