Role of neutron transfer in sub-barrier fusion

被引：20

作者：

Sahoo, Rudra N. ^{[1
]}

Kaushik, Malika ^{[1
]}

Sood, Arshiya ^{[1
]}

Sharma, Arzoo ^{[1
]}

Thakur, Swati ^{[1
]}

Kumar, Pawan ^{[1
]}

Shaikh, Md. Moin ^{[2
]}

Biswas, Rohan ^{[3
]}

Yadav, Abhishek ^{[4
]}

Sharma, Manoj K. ^{[5
]}

Gehlot, J. ^{[3
]}

Nath, S. ^{[3
]}

Madhavan, N. ^{[3
]}

Pillay, R. G. ^{[1
]}

Kozulin, E. M. ^{[6
]}

Knyazheva, G. N. ^{[6
]}

Novikov, K. V. ^{[6
]}

Singh, Pushpendra P. ^{[1
]}

机构：

[1] Indian Inst Technol Ropar, Dept Phys, Rupnagar 140001, Punjab, India

[2] Variable Energy Cyclotron Ctr, 1-AF,Bidhannagar, Kolkata 700064, India

[3] Interuniv Accelerator Ctr, Nucl Phys Grp, New Delhi 110067, India

[4] Jamia Millia Islamia, Dept Phys, New Delhi 110025, India

[5] SV Coll, Dept Phys, Aligarh 202001, Uttar Pradesh, India

[6] Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna, Russia

来源：

PHYSICAL REVIEW C | 2020年 / 102卷 / 02期

基金：

俄罗斯科学基金会;

关键词：

HEAVY-ION FUSION; CROSS-SECTIONS; BARRIER; SYSTEMATICS; DEFORMATION; THRESHOLD; ENERGY; CL-35; FLOW;

D O I：

10.1103/PhysRevC.102.024615

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The fusion excitation function of Cl-35 + Te-130 system has been measured in a wide energy range, i.e., E-c.m. = 94-121.6 MeV, from sub-barrier to above-barrier energies and compared with the Cl-37 + Te-130 system to investigate the role of neutron transfer channels in sub-barrier fusion cross-section enhancement. In comparison, the reduced fusion excitation function of Cl-35 + Te-130 system shows a significant enhancement over the Cl-37 + Te-130 system at sub-barrier energies. This enhancement is correlated with the presence of six positive Q-value neutron transfer channels in the Cl-35 + Te-130 system compared to none in the Cl-37 + Te-130 system. Aiming to probe how fusion at sub-barrier energies responds to different coupling schemes, the excitation functions of both the systems have been analyzed in the framework of the coupled-channels approach on the same footing. The results and coupled-channels analysis presented in this work hints towards the importance of neutron transfer channels in sub-barrier fusion in addition to the inclusion of inelastic excitations of interacting partners. The findings of this work are discussed in light of the conclusions presented by Kohley et al. [Phys. Rev. Lett. 107, 202701 (2011)], in which the role of positive Q-value neutron transfer channels in sub-barrier fusion was studied.

引用

页数：8

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