Author/Authors :
C. Rappold، نويسنده , , E. Kim، نويسنده , , D. Nakajima، نويسنده , , T.R. Saito، نويسنده , , O. Bertini، نويسنده , , S. Bianchin، نويسنده , , V. Bozkurt، نويسنده , , M. Kavatsyuk، نويسنده , , Y. Ma، نويسنده , , F. Maas، نويسنده , , S. Minami، نويسنده , , B. ?zel-Tashenov، نويسنده , , K. Yoshida، نويسنده , , P. Achenbach، نويسنده , , S. Ajimura، نويسنده , , T. Aumann، نويسنده , , C. Ayerbe Gayoso، نويسنده , , H.C Bhang، نويسنده , , C. Caesar، نويسنده , , S. Erturk، نويسنده , , T. Fukuda، نويسنده , , et، نويسنده ,
Abstract :
A novel experiment, aiming at demonstrating the feasibility of hypernuclear spectroscopy with heavy ion beams, was conducted. Using the invariant mass method, the spectroscopy of hypernuclear products of 6Li projectiles on a carbon target at image was performed. Signals of the Λ-hyperon and image and image hypernuclei were observed for final states of image, image and image, respectively, with significance values of 6.7, 4.7 and 4.9σ. By analyzing the proper decay time from secondary vertex distribution with the unbinned maximum likelihood fitting method, their lifetime values were deduced to be image for Λ, image for image, and image for image.
Keywords :
? mass , 3 , NUCLEAR REACTIONS , 4H ?-hypernuclei mass , ?t) , (6Li , (6Li , lifetime measurement , measured , E=2 GeV/nucleonE=2 GeV/nucleon , ? , ?X) , Compared with other data , ?4H) , 3 , T1/2T1/2 , 4H ?-hypernuclei invariant mass distribution , deduced , C(6Li , T1/2T1/2
