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1.
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NPTool simulations for $^{7}$Be + d experiment at CERN ISOLDE
/ Ali, Sk M (Bose Inst., Kolkata) ; Gupta, D (Bose Inst., Kolkata) ; Kundalia, K (Bose Inst., Kolkata) ; Saha, Swapan K (Bose Inst., Kolkata)
We carried out an experiment involving a 5 MeV/A $^7$Be beam on a CD$_2$ target to study resonance excitations, at the HIE−ISOLDE facility of CERN, Geneva [1]. In this work, we present the simulations of the $^7$Be + d experiment with NPTool (Nuclear Physics Tool). [...]
2019 - 2 p.
- Published in : DAE Symp. Nucl. Phys.: 64 (2019) , pp. 892-893
Fulltext: PDF;
In : 64th DAE BRNS Symposium on nuclear physics, Lucknow, Uttar Pradesh, India, 23-27 Dec 2019, pp.892-893
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2.
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Resonance excitations in the $^{7}$Be + d experiment at CERN ISOLDE
/ Ali, Sk M (Bose Inst., Kolkata) ; Gupta, D (Bose Inst., Kolkata) ; Kundalia, K (Bose Inst., Kolkata) ; Saha, Swapan K (Bose Inst., Kolkata) ; Tengblad, O (Madrid, Inst. Estructura Materia) ; Ovejas, J D (Madrid, Inst. Estructura Materia) ; Perea, A (Madrid, Inst. Estructura Materia) ; Martel, I (U. Grenoble Alpes ; TIMA, Grenoble) ; Cederkall, J (Lund U.) ; Park, J (Lund U.) et al.
The Big Bang Nucleosynthesis (BBN) theory has been very successful in predicting the observed abundances of light elements like $^2$H, ${3,4}$He. There is, however, a serious discrepancy of a factor of about four in the observed abundance of $^7$Li as compared to that predicted by the BBN theory [1−2]. [...]
2019 - 2 p.
- Published in : DAE Symp. Nucl. Phys.: 64 (2019) , pp. 570-571
Fulltext: PDF;
In : 64th DAE BRNS Symposium on nuclear physics, Lucknow, Uttar Pradesh, India, 23-27 Dec 2019, pp.570-571
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3.
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Breakup of $^9$Li to study the $^8$Li(n,$\gamma$) reaction
/ Gupta, D (Department of Physics, Bose Institute, 93/1 APC Road, Kolkata 700009, India) ; Kundalia, K (Department of Physics, Bose Institute, 93/1 APC Road, Kolkata 700009, India) ; Ali, Sk M (Department of Physics, Bose Institute, 93/1 APC Road, Kolkata 700009, India) ; Maity, S (Department of Physics, Bose Institute, 93/1 APC Road, Kolkata 700009, India) ; Mitra, R (Department of Physics, Bose Institute, 93/1 APC Road, Kolkata 700009, India) ; Saha, Swapan K (Department of Physics, Bose Institute, 93/1 APC Road, Kolkata 700009, India) ; Tengblad, O (Instituto de Estructura de la Materia $-$ CSIC, Serrano 113 bis, ES-28006 Madrid, Spain) ; Tavora, V G (Instituto de Estructura de la Materia $-$ CSIC, Serrano 113 bis, ES-28006 Madrid, Spain) ; Perea, A (Instituto de Estructura de la Materia $-$ CSIC, Serrano 113 bis, ES-28006 Madrid, Spain) ; Borge, M J G (Instituto de Estructura de la Materia $-$ CSIC, Serrano 113 bis, ES-28006 Madrid, Spain) et al.
CERN-INTC-2022-037 ; INTC-P-639.
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2022.
Fulltext
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4.
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Study of elastic and inelastic scattering of $^7$Be + $^{12}$C at 35 MeV
/ Kundalia, K. (Bose Inst., Kolkata) ; Gupta, D. (Bose Inst., Kolkata) ; Ali, Sk M. (Bose Inst., Kolkata) ; Saha, Swapan K. (Bose Inst., Kolkata) ; Tengblad, O. (Madrid, Inst. Estructura Materia) ; Ovejas, J.D. (Madrid, Inst. Estructura Materia) ; Perea, A. (Madrid, Inst. Estructura Materia) ; Martel, I. (Huelva U.) ; Cederkall, J. (Lund U.) ; Park, J. (Lund U.) et al.
The elastic and inelastic scattering of $^7$Be from $^{12}$C have been measured at an incident energy of 35 MeV. The inelastic scattering leading to the 4.439 MeV excited state of 12C has been measured for the first time. [...]
arXiv:2207.10865.-
2022-10-10 - 6 p.
- Published in : Phys. Lett. B 833 (2022) 137294
Fulltext: 2207.10865 - PDF; 1-s2.0-S0370269322004282-main - PDF;
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5.
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Resonance Excitations in $^7$Be(d,p)$^8$Be$^\ast$ to Address the Cosmological Lithium Problem
/ Ali, Sk M. (Bose Inst., Kolkata) ; Gupta, D. (Bose Inst., Kolkata) ; Kundalia, K. (Bose Inst., Kolkata) ; Saha, Swapan K. (Bose Inst., Kolkata) ; Tengblad, O. (Madrid, Inst. Estructura Materia) ; Ovejas, J.D. (Madrid, Inst. Estructura Materia) ; Perea, A. (Madrid, Inst. Estructura Materia) ; Martel, I. (Huelva U.) ; Cederkall, J. (Lund U.) ; Park, J. (Lund U.) et al.
The anomaly in lithium abundance is a well-known unresolved problem in nuclear astrophysics. A recent revisit to the problem tried the avenue of resonance enhancement to account for the primordial $^7$Li abundance in standard big-bang nucleosynthesis (BBN). [...]
arXiv:2206.14563.-
2022-06-21 - 6 p.
- Published in : Phys. Rev. Lett. 128 (2022) 252701
Fulltext: PDF;
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6.
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Determination of $^8$Li(n,$\gamma$) cross section via Coulomb dissociation of $^{9}$Li
/ Saha, Swapan K (Bose Institute, 93/1 A. P. C. Road, Kolkata 700009, India) ; Gupta, Dhruba (Bose Institute, 93/1 A. P. C. Road, Kolkata 700009, India Kundalia, Kabita ; Bose Institute, 93/1 A. P. C. Road, Kolkata 700009, India) ; Ali, Sk Mustak (Bose Institute, 93/1 A. P. C. Road, Kolkata 700009, India) ; Sinha, Mandira (Bose Institute, 93/1 A. P. C. Road, Kolkata 700009, India) ; Tengblad, Olof (Instituto de Estructura de la Materia - CSIC (IEM-CSIC), Serrano 113 bis, ES-28006 Madrid, Spain) ; Cederkall, Joakim (Physics Department, Lund University, Box 118, 221 Lund, Sweden)
CERN-INTC-2018-013 ; INTC-P-543.
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2018.
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7.
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Search for higher excited states of $^8$Be$^{*}$ to study the cosmological $^7$Li problem
/ Gupta, Dhruba (Department of Physics, Bose Institute) ; Saha, Swapan K (Department of Physics, Bose Institute) ; Borge, Maria JG (CERN) ; Kowalska, Magdalena (CERN) ; Muecher, Dennis (Institut fuer Kernphysik, Universitaet zu Koeln) ; Raabe, Riccardo (Instituut voor Kern- en Stralingsfysica, KU Leuven) ; Randisi, Giacomo (Instituut voor Kern- en Stralingsfysica, KU Leuven) ; Reiter, Peter (Institut fuer Kernphysik, Universitaet zu Koeln) ; Stora, Thierry (CERN) ; Voulot, Didier (CERN) et al.
CERN-INTC-2012-049 ; INTC-P-350.
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2012.
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8.
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Calibration of a solid state nuclear track detector (SSNTD) with high detection threshold to search for rare events in cosmic rays
/ Dey, S (CAPSS, Kolkata) ; Gupta, D (CAPSS, Kolkata ; Bose Inst., Kolkata) ; Maulik, A (CAPSS, Kolkata) ; Sibaji, R (CAPSS, Kolkata ; Bose Inst., Kolkata) ; Saha, Swapan K (CAPSS, Kolkata ; Bose Inst., Kolkata) ; Syam, D (Barasat Government College, Kolkata) ; Pakarinen, J (CERN) ; Voulot, D (CERN) ; Wenander, F (CERN)
We have investigated a commercially available polymer for its suitability as a solid state nuclear track detector (SSNTD). We identified that polymer to be polyethylene terephthalate (PET) and found that it has a higher detection threshold compared to many other widely used SSNTDs which makes this detector particularly suitable for rare event search in cosmic rays as it eliminates the dominant low Z background. [...]
arXiv:1103.4474.-
2011 - 5 p.
- Published in : Astropart. Phys. 34 (2011) 805-808
External link: Preprint
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