Towards the Discovery of New Elements: Production of Livermorium (Z=116) with 50Ti

The \(^{244}\)Pu(\(^{50}\)Ti,\(xn\))\(^{294-x}\)Lv reaction was investigated at Lawrence Berkeley National Laboratory's 88-Inch Cyclotron facility. The experiment was aimed at the production of a superheavy element with \(Z\ge 114\) by irradiating an actinide target with a beam heavier than \(^...

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Hauptverfasser: Gates, J M, Orford, R, Rudolph, D, Appleton, C, Barrios, B M, Benitez, J Y, Bordeau, M, Botha, W, Campbell, C M, Chadderton, J, Chemey, A T, Clark, R M, Crawford, H L, Despotopulos, J D, Dorvaux, O, Esker, N E, Fallon, P, Folden, C M, Gall, B J P, Garcia, F H, Golubev, P, Gooding, J A, Grebo, M, Gregorich, K E, Guerrero, M, Henderson, R A, R -D Herzberg, Hrabar, Y, King, T T, Covo, M Kireeff, Kirkland, A S, Krücken, R, Leistenschneider, E, Lykiardopoulou, E M, McCarthy, M, Mildon, J A, Müller-Gatermann, C, Phair, L, Pore, J L, Rice, E, Rykaczewski, K P, Sammis, B N, Sarmiento, L G, Seweryniak, D, Sharp, D K, Sinjari, A, Steinegger, P, Stoyer, M A, Szornel, J M, Thomas, K, Todd, D S, P Vo, Watson, V, Wooddy, P T
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creator Gates, J M
Orford, R
Rudolph, D
Appleton, C
Barrios, B M
Benitez, J Y
Bordeau, M
Botha, W
Campbell, C M
Chadderton, J
Chemey, A T
Clark, R M
Crawford, H L
Despotopulos, J D
Dorvaux, O
Esker, N E
Fallon, P
Folden, C M
Gall, B J P
Garcia, F H
Golubev, P
Gooding, J A
Grebo, M
Gregorich, K E
Guerrero, M
Henderson, R A
R -D Herzberg
Hrabar, Y
King, T T
Covo, M Kireeff
Kirkland, A S
Krücken, R
Leistenschneider, E
Lykiardopoulou, E M
McCarthy, M
Mildon, J A
Müller-Gatermann, C
Phair, L
Pore, J L
Rice, E
Rykaczewski, K P
Sammis, B N
Sarmiento, L G
Seweryniak, D
Sharp, D K
Sinjari, A
Steinegger, P
Stoyer, M A
Szornel, J M
Thomas, K
Todd, D S
P Vo
Watson, V
Wooddy, P T
description The \(^{244}\)Pu(\(^{50}\)Ti,\(xn\))\(^{294-x}\)Lv reaction was investigated at Lawrence Berkeley National Laboratory's 88-Inch Cyclotron facility. The experiment was aimed at the production of a superheavy element with \(Z\ge 114\) by irradiating an actinide target with a beam heavier than \(^{48}\)Ca. Produced Lv ions were separated from the unwanted beam and nuclear reaction products using the Berkeley Gas-filled Separator and implanted into a newly commissioned focal plane detector system. Two decay chains were observed and assigned to the decay of \(^{290}\)Lv. The production cross section was measured to be \(\sigma_{\rm prod}=0.44(^{+58}_{-28})\)~pb at a center-of-target center-of-mass energy of 220(3)~MeV. This represents the first published measurement of the production of a superheavy element near the `Island-of-Stability', with a beam of \(^{50}\)Ti and is an essential precursor in the pursuit of searching for new elements beyond \(Z=118\).
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subjects Cyclotrons
Decay
Focal plane
Nuclear reactions
Reaction products
title Towards the Discovery of New Elements: Production of Livermorium (Z=116) with 50Ti
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