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Title: Recalibration of the binding energy of hypernuclei measured in emulsion experiments and its implications

Journal Article · · Chinese Physics C, High Energy Physics and Nuclear Physics
 [1];  [2];  [3];  [4];  [5]
  1. Chinese Academy of Sciences (CAS), Shanghai (China); Chinese Academy of Sciences (CAS), Beijing (China); Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Fudan Univ., Shanghai (China)
  3. Kent State Univ., Kent, OH (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States); Shandong Univ., Qingdao (China)
  5. Chinese Academy of Sciences (CAS), Shanghai (China); Fudan Univ., Shanghai (China)

In this work, the $$ \Lambda $$ separation energy for $$ \Lambda $$ hypernuclei, denoted $$ B_\Lambda $$, measured in 1967, 1968, and 1973 are recalibrated using the current best estimates of the mass of particles and nuclei. The recalibrated $$ B_\Lambda $$ are systematically larger (except in the case of $$ ^6_\Lambda $$He) than the originally published values by about 100 keV. The effect of this level of recalibration is very important for light hypernuclei, especially for the hypertriton. The early $$ B_\Lambda $$ values measured in 1967, 1968, and 1973 are widely used in theoretical research, and the new results provide better constraints for the conclusions of such studies.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
SC0012704; FG02-89ER40531
OSTI ID:
1580258
Report Number(s):
BNL--212453-2019-JAAM
Journal Information:
Chinese Physics C, High Energy Physics and Nuclear Physics, Journal Name: Chinese Physics C, High Energy Physics and Nuclear Physics Journal Issue: 12 Vol. 43; ISSN 1674-1137
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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