Position reconstruction in fission fragment detection using the low pressure MWPC technique for the JLab experiment E02-017

Journal Article · Tue Jul 01 00:00:00 EDT 2014 · Chin.Phys. C

DOI:https://doi.org/10.1088/1674-1137/38/7/074003· OSTI ID:1149583

Xi-Yu, Qiu ^[1]; Tang, Liguang ^[2]; Margaryan, Amur T. ^[3]; Jin-Zhang, Xu ^[4]; Bi-Tao, Hu ^[4]; Xi-Meng, Chen ^[4]

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1. Lanzhou U.
2. JLAB
3. Yerevan
4. Lanzhou

When a lambda hyperon was embedded in a nucleus, it can form a hypernucleus. The lifetime and its mass dependence of stable hypernuclei provide information about the weak decay of lambda hyperon inside nuclear medium. This work will introduce the Jefferson Lab experiment (E02-017) which aims to study the lifetime of the heavy hypernuclei using a specially developed fission fragment detection technique, a multi-wire proportional chamber operated under low gas pressure (LPMWPC). Presented here are the method and performance of the reconstruction of fission position on the target foil, the separation of target materials at different regions and the comparison and verification with the Mote Carlo simulation.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1149583
• Report Number(s): JLAB-PHY-13-1792; DOE/OR/23177-2790; arXiv:1309.7422
• Journal Information: Chin.Phys. C, Vol. 38, Issue 07
• Country of Publication: United States
• Language: English