https://doi.org/10.1140/epja/s10050-023-01143-z
Regular Article - Experimental Physics
Sensitivity of 
values extracted from quasi elastic barrier distribution to the 2n transfer channel
1
Nuclear Physics Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India
2
Department of Physics and Astrophysics, Delhi University, 110007, Delhi, India
3
Homi Bhabha National Institute, 400094, Anushaktinagar, Mumbai, India
4
Department of Physics, Banaras Hindu University, 221005, Varanasi, India
5
Department of Physics, Gauhati University, 781014, Gauhati, India
6
Department of Physics, Kamrup College, Chamata, 781306, Nalbari, India
7
Department of Physics, Panjab University, 160014, Chandigarh, India
8
Department of Nuclear Physics, Andhra University, 530003, Visakhapatnam, India
9
Department of Physics, Sir P. T. Sarvajanik College of Science, 395001, Surat, India
10
Department of Physics, Savitribai Phule Pune University, 411007, Pune, India
11
Department of Physics, Moolji Jaitha College, 425001, Jalgaon, India
12
Department of Physics, University of Mumbai, 400098, Mumbai, India
Received:
25
April
2023
Accepted:
28
September
2023
Published online:
18
October
2023
In recent times, the Fusion Barrier Distributions (FBD) determined from quasi-elastic scattering measurements have been employed to determine the hexadecapole deformation parameter value precisely. In reactions where transfer channels are favourable, coupling due to transfer may affect the determination of . In order to study the role of transfer channels while determining from barrier distribution, the quasi-elastic scattering measurements have been carried out in 
O + 
Yb. Quasi-elastic scattering excitation function has been measured at backward angles with respect to the beam direction and barrier distribution 
has been derived. Experimentally obtained barrier distribution has been compared with coupled channel calculations using CCFULL code. The effect of two neutron transfer and hexadecapole deformation has been studied using coupled channel calculation. 
was calculated in a two dimensional space of and neutron transfer strength 
. Without considering neutron transfer, minimization of was not possible and the best-fit was found over a small range of and . At 
, corresponding to minimum , the of Yb is determined to be 
. This value of is in agreement with that obtained from Coulomb excitation measurement.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
