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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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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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The Most Accurate Determination of the $^{8}$B Half-life
/ Viñals, S (Madrid, Inst. Estructura Materia) ; Nácher, E (Madrid, Inst. Estructura Materia ; Valencia U., IFIC) ; Tengblad, O (Madrid, Inst. Estructura Materia) ; Benito, J (UCM, Madrid, Dept. Phys.) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Figuera, P (INFN, Catania) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Fynbo, H O U (Aarhus U.) ; Gad, A (Aarhus U.) ; Jensen, J (Aarhus U.) et al.
Beta decay is a primary source of information of the structure of a nucleus. An accurate measurement of the half-life of a nucleus is essential for the proper determination of the reduced Gammow–Teller transition probability $B$(GT) [...]
2020 - 7 p.
- Published in : Acta Phys. Pol. B 51 (2020) 717
Fulltext: PDF;
In : 36th Mazurian Lakes Conference on Physics : Probing fundamental laws of nature with exotic nuclei and atoms, Piaski, Poland, 1 - 7 Sep 2019, pp.717
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The experiments to determine the electron capture and $\beta$-decay of $^8$B into the highly excited states of $^8$Be
/ Vinals, S (Madrid, Inst. Estructura Materia) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Tengblad, O (Madrid, Inst. Estructura Materia) ; Nacher, E (Valencia U., IFIC) ; Benito, J (UCM, Madrid, Dept. Phys.) ; Figuera, P (INFN, Catania) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Fynbo, H O U (Aarhus U.) ; Gad, A (Aarhus U.) ; Jensen, J (Aarhus U.) et al.
The main goal of this work is to study the structure of the highest energy states in $^8$Be populated following the $\beta^+$-decay and the electron capture (EC) of $^8$B. With this aim, two experiments were performed at ISOLDE-CERN in 2017 and 2018. [...]
2020 - 7 p.
- Published in : J. Phys. : Conf. Ser. 1643 (2020) 012130
Fulltext: PDF;
In : International Nuclear Physics Conference 2019, Glasgow, United Kingdom, 29 Jul - 2 Aug 2019, pp.012130
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Study of the scattering of $^{15}$C at energies around the Coulomb barrier
/ Ovejas, J D (Madrid, Inst. Estructura Materia) ; Knyazev, A (Lund U.) ; Martel, I (Liverpool U. ; Huelva U.) ; Tengblad, O (Madrid, Inst. Estructura Materia) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Cederkall, J (Lund U.) ; Keeley, N (NCBJ, Lodz) ; Rusek, K (Warsaw U., Heavy Ion Lab) ; García-Ramos, C (Huelva U.) ; Pérez, T (Huelva U.) et al.
The neutron rich carbon isotope $^{15}$C is the only known case of an almost "pure" 2s$_{1/2}$ single-neutron halo ground state configuration. At collision energies around the Coulomb barrier the reaction dynamics is expected to be dominated by single neutron transfer and breakup [...]
2020 - 4 p.
- Published in : J. Phys. : Conf. Ser. 1643 (2020) 012095
Fulltext: PDF;
In : International Nuclear Physics Conference 2019, Glasgow, United Kingdom, 29 Jul - 2 Aug 2019, pp.012095
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Probing proton halo effects in the $^8$B+$^{64}$Zn collision around the Coulomb barrier
/ Spartà, R (Catania U. ; INFN, Catania) ; Di Pietro, A (INFN, Catania) ; Figuera, P (INFN, Catania) ; Tengblad, O (CSIC, Madrid) ; Moro, A M (Seville U.) ; Martel, I (Huelva U.) ; Fernández-García, J P (Seville U.) ; Lei, Jin (INFN, Pisa) ; Acosta, L (Mexico U. ; INFN, Catania) ; Borge, M J (CSIC, Madrid) et al.
Proton halo effects in the 8B+64Zn reaction at an energy around 1.5 times the Coulomb barrier have been studied at HIE-ISOLDE CERN using, for the first time, the only existing postaccelerated 8B beam. This, together with the use of a high granularity and large solid angle detection system, allowed for a careful mapping of the elastic angular distribution, especially in the Coulomb-nuclear interference region. [...]
2021 - 9 p.
- Published in : Phys. Lett. B 820 (2021) 136477
Fulltext: PDF;
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