https://doi.org/10.1140/epja/s10050-021-00592-8
Regular Article - Experimental Physics
Search for the Hoyle analogue state in O
1
Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, 700064, Kolkata, India
2
Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, 400094, Mumbai, India
3
GSI Helmholtzzentrum für Schwerionenforschung, 64291, Darmstadt, Germany
4
Department of Physics, Chanchal College, Chanchal, 732123, Malda, West Bengal, India
5
Department of Physics, Panjab University, 160014, Chandigarh, India
6
, P.O. BOX MG-6, ELI-NP, Str. Reactorului no. 30, Bucharest-Magurele, Romania
Received:
22
June
2021
Accepted:
26
September
2021
Published online:
12
October
2021
The Hoyle analogue state in O was explored by inelastic scattering of 45 MeV s on a Mylar target. The break up 4s of O have been detected in coincidence with the inelastically scattered beam particle to probe the Hoyle analogue state of O in complete kinematics, for the first time. The data have been analysed for all possible configurations and the excitation function of O has been reconstructed directly from 4 as well as for specific decay channels like C(0) + , C(3) + and Be + Be. Several previously known states have been observed above the break-up threshold (14.44 MeV) in the above mentioned decay channels. However, the signature of the 15.1 MeV state, most preferable to be the Hoyle analogue state according to the theoretical prediction, remains inconclusive.
S. Bhattacharya: Retired.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021