Production of (4)(double Lambda)H hypernuclei期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Production of (4)(double Lambda)H hypernuclei

Authors:	Ahn J K Ajimura S Akikawa H Bassalleck B Berdoz A Carman D Chrien R E Davis C A Eugenio P Fischer H Franklin G B Franz J Fukuda T Gan L Hotchi H Ichikawa A Imai K Kahana S H Khaustov P Kishimoto T Koran P Kohri H Kourepin A Kubota K Landry M May M Meyer C Meziani Z Minami S Miyachi T Nagae T Nakano J Outa H Paschke K Pile P Prokhabatilov M Quinn B P Rasin V Rusek A Schmitt H Schumacher R A Sekimoto M Shileev K Shimizu Y Sutter R Tamagawa T Tang L Tanida K Yamamoto K Yuan L

Affiliation:	Department of Physics, Pusan National University, Pusan 609-735, Korea.

Abstract:	An experiment demonstrating the production of double-Lambda hypernuclei in (K(-),K(+)) reactions on (9)Be was carried out at the D6 line in the BNL alternating-gradient synchrotron. The technique was the observation of pions produced in sequential mesonic weak decay, each pion associated with one unit of strangeness change. The results indicate the production of a significant number of the double hypernucleus (4)(double Lambda)H and the twin hypernuclei (4)(Lambda)H and (3)(Lambda)H. The relevant decay chains are discussed and a simple model of the production mechanism is presented. An implication of this experiment is that the existence of an S = -2 dibaryon more than a few MeV below the double Lambda mass is unlikely.

Keywords:
本文献已被 PubMed 等数据库收录！