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Your search keyword '"Nayak, B.K."' showing total 181 results
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181 results on '"Nayak, B.K."'

8. Study of the surrogate ratio method by determination of 56Fe(n,xp) cross sections

Author

Sharma, Aman, primary, Dubey, Punit, additional, Mishra, Utkarsha, additional, Dubey, Nitin, additional, Pandey, Jyoti, additional, Gandhi, Ramandeep, additional, Pal, A., additional, Baishya, Abhijit, additional, Santhosh, T., additional, Rout, P.C., additional, Nayak, B.K., additional, Santra, S., additional, Chakraborty, A., additional, and Kumar, A., additional

Published
2023
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21. New signature of non-equilibrium fission from pre-scission α-particle emission

Author

Gupta, Y.K., primary, Prajapati, G.K., additional, John, B.V., additional, Joshi, B.N., additional, Danu, L.S., additional, Dubey, S., additional, Mukhopadhyay, S., additional, Kumar, N., additional, Mahata, K., additional, Ramachandran, K., additional, Jhingan, A., additional, Kumar, M., additional, Deshmukh, N., additional, Pradeep, A.S., additional, Nayak, B.K., additional, and Biswas, D.C., additional

Published
2022
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29. Determination of hexadecapole (β4) deformation of the light-mass nucleus 24Mg using quasi-elastic scattering measurements

Author

Gupta, Y.K., Nayak, B.K., Garg, U., Hagino, K., Howard, K.B., Sensharma, N., Şenyiğit, M., Tan, W.P., O'Malley, P.D., Smith, M., Gandhi, Ramandeep, Anderson, T., deBoer, R.J., Frentz, B., Gyurjinyan, A., Hall, O., Hall, M.R., Hu, J., Lamere, E., Liu, Q., Long, A., Lu, W., Lyons, S., Ostdiek, K., Seymour, C., Skulski, M., and Vande Kolk, B.

Published
2020
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33. Probing dynamics of fusion reactions through cross-section and spin distribution measurement

Author

Kaur Maninder, Behera B.R., Singh Gulzar, Singh Varinderjit, Madhavan N., Muralithar S., Nath S., Gehlot J., Mohanto G., Mukul Ish, Siwal D., Thakur M., Kapoor K., Sharma P., Banerjee T., Jhingan A., Varughese T., Bala Indu, Nayak B.K., Saxena A., Chatterjee M.B., and Stevenson P.D.

Subjects
Physics, QC1-999
Abstract

Present work aims to explicate the effect of entrance channel mass asymmetry on fusion dynamics for the Compound Nucleus 80Sr populated through two different channels, 16O+64Zn and 32S+48Ti, using cross-section and spin distribution measurements as probes. The evaporation spectra studies for these systems, reported earlier indicate the presence of dynamical effects for mass symmetric 32S+48Ti system.The CCDEF and TDHF calculations have been performed for both the systems and an attempt has been made to explain the reported deviations in the α-particle spectrum for the mass symmetric system.

Published
2016
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34. Barrier distribution from 28Si+154Sm quasielastic scattering: Coupling effects in the fusion process

Author

Kaur Gurpreet, Behera B.R., Jhingan A., Nayak B.K., Dubey R., Sharma Priya, Thakur Meenu, Mahajan Ruchi, Saneesh N., Banerjee Tathagata, Khushboo, Kumar A., Mandal S., Saxena A., Sugathan P., and Rowley N.

Subjects
Physics, QC1-999
Abstract

Barrier distribution for the 28Si+154Sm system has been extracted from large angle quasielastic scattering measurement to investigate the role of various channel couplings on fusion dynamics. The coupled channel calculations, including the collective excitation of the target and projectile, are observed to reproduce the experimental BD rather well. It seems that the role of neutron transfer, relative to collective excitation, is in fact weak in the 28Si+154Sm system even though it has positive Q-value for neutron transfer channels.

Published
2016
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35. Determination of hexadecapole ( ) Deformation of the Light-mass Nucleus Mg using quasi-elastic scattering measurements

Author

Gupta, Y.K., Nayak, B.K., Garg, U., Hagino, K., Howard, K.B., Sensharma, N., Şenyiğit, M., Tan, W.P., O'Malley, P.D., Smith, M., Gandhi, Ramandeep, Anderson, T., deBoer, R.J., Frentz, B., Gyurjinyan, A., Hall, O., Hall, M.R., Hu, J., Lamere, E., Liu, Q., Long, A., Lu, W., Lyons, S., Ostdiek, K., Seymour, C., Skulski, M., and Vande Kolk, B.

Abstract

Quasi-elastic scattering measurements have been performed using $^{16}$O and $^{24}$Mg projectiles off $^{90}$Zr at energies around the Coulomb barrier. Experimental data have been analyzed in the framework of coupled channels (CC) calculations using the code CCFULL. The quasi-elastic scattering excitation function and derived barrier distribution for $^{16}$O + $^{90}$Zr reaction are well reproduced by the CC calculations using the vibrational coupling strengths for $^{90}$Zr reported in the literature. Using these vibrational coupling strengths, a Bayesian analysis is carried out for $^{24}$Mg + $^{90}$Zr reaction. The β2 and β4 values for $^{24}$Mg are determined to be +0.43±0.02 and −0.11±0.02, respectively. The β2 parameter determined in the present work is in good agreement with results obtained using inelastic scattering probes. The hexadecapole deformation of $^{24}$Mg has been measured very precisely for the first time. Present results establish that quasi-elastic scattering could provide a useful probe to determine the ground state deformation of atomic nuclei.

Published
2020

36. Measurements of 181Ta(n,2n)180Ta reaction cross-section at the neutron energy of 14.78 MeV

Author

Soni, B., Parashari, S., Mukherjee, S., Makwana, R., Mehta, M., Chauhan, Rakesh, Suryanarayana, S.V., Pasha, I., Danu, L.S., Naik, H., Nayak, B.K., Varmuža, Jan, and Katovský, Karel

Subjects
Neutron Activation Analysis (NAA), 3H(2H, Off-line gamma-ray spectrometry, TALYS-1.9, n)4He reaction neutron, Co-variance analysis, TALYS1.8
Abstract

The cross-section of the 181Ta(n,2n)180Ta reaction has been measured with respect to the 197Au(n,2n)196Au monitor reaction at the incident neutron energy of 14.78± 0.20 MeV, using neutron activation analysis and off-line -ray spectrometric technique. The present measurement has been done at the energy where discrepant measured results are available in the EXFOR data library. The result has been compared with evaluated data libraries JEFF-3.3 and ENDF/B-VII.1. The present result has also been supported by theoretical predictions of nuclear model code TALYS1.8 and TALYS-1.9. The uncertainty and the correlations among the measured cross-section has been studied using co-variance analysis.

Published
2020

40. Reaction mechanisms in the 6Li+ 52Cr system

Author

Pandey Bhawna, Prajapati P.M., Patel D., Desai V.V., Kumar H., Suranarayana S.V., Nayak B.K., Saxena Alok, Jakhar S., Rao CVS, and Basu T.K.

Subjects
Physics, QC1-999
Abstract

Reactions induced by the weakly bound 6Li projectile interacting with the intermediate mass target 52Cr are investigated. The choice of this particular reaction in our study is because it is proposed as a surrogate reaction [6Li(52Cr, d)56Fe*] for the measurement of 55Fe(n,p) reaction cross-section, which has been found to be very important in fusion reactor studies. All the conditions which have to be satisfied for using the surrogate method have been checked. The energy of 6Li beam is selected in a way so as to get equivalent neutron energy in the region of 9-14 MeV, which is of primary interest in fusion reactor application. In the present work, statistical model calculations PACE (Projection-Angular-Momentum-Coupled-Evaporation), ALICE and Continuum-Discretized–Coupled-Channel (CDCC: FRESCO) have been used to provide information for the 6Li + 52Cr system and the respective contributions of different reaction mechanisms. The present theoretical work is an important step in the direction towards studying the cross-section of the 55Fe(n, p)55Mn reaction by surrogate method.

Published
2015
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41. Spin distribution as a probe to investigate the dynamical effects in fusion reactions

Author

Kaur Maninder, Behera B.R., Singh Gulzar, Singh Varinderjit, Madhavan N., Muralithar S., Nath S., Gehlot J., Mohanto G., Mukul Ish, Siwal Davinder, Thakur Meenu, Kapoor Kushal, Sharma Priya, Jhingan Akhil, Varughese T., Bala Indu, Chatterjee M.B., Nayak B.K., and Saxena A.

Subjects
Physics, QC1-999
Abstract

The spin distributions are measured for the compound nucleus 80Sr populated in the reactions 16O+64Zn and 32S+48Ti. The comparison of the experimental results for both the systems shows that the mean γ-ray multiplicity values for the system 32S+48Ti are lower than those for 16O+64Zn. The spin distribution of the compound nucleus populated through the symmetric channel is also found to be lower than the asymmetric channel. Present investigation directly shows the effect of entrance channel mass asymmetry on the reaction dynamics.

Published
2015
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47. Conclusive evidence of quasifission in heavy-ion induced reactions in neutron-deficient sub-lead nuclei exhibiting asymmetric fission

Author

Gupta, Shilpi, Mahata, K., Shrivastava, A., Ramachandran, K., Pandit, S.K., Rout, P.C., Parkar, V.V., Tripathi, R., Kumar, A., Nayak, B.K., Mirgule, E.T., Saxena, A., Kailas, S., Jhingan, A., Nasirov, A.K., Yuldasheva, G.A., Nadtochy, P.N., Schmitt, C., Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), and HEP, INSPIRE

Subjects
[PHYS.NUCL] Physics [physics]/Nuclear Theory [nucl-th], [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

Fission fragment mass distributions of 191Au, a nucleus in the newly identified island of mass asymmetric fission in the sub-lead region, have been measured down to excitation energy of ~ 20 MeV above the fission barrier via two different entrance channels, viz. 16O+ 175Lu and 37Cl+ 154Sm reactions. Apart from having signature of the shell effects in both the cases, clear evidence of quasi-fission has been observed in the mass distributions of the Cl induced reaction. A systematic analysis of available experimental data reveals that the dynamics in the entrance channel has significant influence on most of the reactions used to study asymmetric fission in this region, ignoring which might lead to ambiguity.

Published
2019

48. Study of the cluster state at Ex=10.3 MeV in 12C

Author

Itoh, M., Akimune, H., Fujiwara, M., Garg, U., Hashimoto, H., Kawabata, T., Kawase, K., Kishi, S., Murakami, T., Nakanishi, K., Nakatsugawa, Y., Nayak, B.K., Okumura, S., Sakaguchi, H., Takeda, H., Terashima, S., Uchida, M., Yasuda, Y., Yosoi, M., and Zenihiro, J.

Published
2004
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49. The effect of deformation in the isoscalar giant dipole resonance

Author

Itoh, M., Sakaguchi, H., Uchida, M., Ishikawa, T., Kawabata, T., Murakami, T., Takeda, H., Taki, T., Terashima, S., Tsukahara, N., Yasuda, Y., Yosoi, M., Garg, U., Hedden, M., Kharraja, B., Koss, M., Nayak, B.K., Zhu, S., Fujimura, H., Fujiwara, M., Hara, K., Yoshida, H.P., Akimune, H., Harakeh, M.N., and Volkerts, M.

Published
2004
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50. Search for hyperdeformed structures populated in the 37Cl+120Sn reaction by using EUROBALL III

Author

Rizzi, V., Viesti, G., Bazzacco, D., Algora-Pineda, A., Appelbe, D., de Angelis, G., Belcari, N., Cinausero, M., De Poli, M., Drake, T.E., Gadea, A., Galindo-Uribarri, A., Gelli, N., Fabris, D., Farnea, E., Fioretto, E., Krolas, W., Kroll, T., Lucarelli, F., Lunardi, S., Lunardon, M., Martinez, T., Menegazzo, R., Nayak, B.K., Nebbia, G., Napoli, D.R., Nyakó, B., Petrache, C., Podolyák, Zs., Prete, G., Rossi Alvarez, C., Samant, A., Spolaore, P., Ur, C., and Zuber, K.

Published
2000
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