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This article is cited in 11 scientific papers (total in 11 papers)
FIELDS, PARTICLES, AND NUCLEI
Observation of new states of the $^7$He isotope
Yu. B. Gurov, L. Yu. Korotkova, S. V. Lapushkin, Р. В. Pritula, V. G. Sandukovskii, M. V. Tel'kushev, B. A. Chernyshev National Engineering Physics Institute "MEPhI", Moscow
Abstract:
The formation of the $^7$He heavy isotope has been studied in the ${}^{11}$B$(\pi^-,\text{pt})^7$He,
${}^{11}$B$(\pi^-,\text{dd})^7$He и
${}^{10}$B$(\pi^-,\text{рd})^7$He reactions of absorption of stopped ѓО$\pi^-$-mesons. No indications of the existence of a low-lying level with $E_x\sim1\,$MeV have been obtained in any of the three reactions. The existence of three narrow states with excitation energies $E_x=3.1(1)$, $4.90(15)$, and $6.65(15)$ MeV has been proven. Highly excited states with $E_x=16.9(5)\,$MeV, $\Gamma=1.0(3)$ MeV, $E_x=19.8(3)$ MeV, $\Gamma=1.5(3)$ MeV, and $E_x=24.8(4)\,$MeV, $\Gamma=4.6(7)$ MeV have been identified.
Received: 13.10.2014 Revised: 28.11.2014
Citation:
Yu. B. Gurov, L. Yu. Korotkova, S. V. Lapushkin, Р. В. Pritula, V. G. Sandukovskii, M. V. Tel'kushev, B. A. Chernyshev, “Observation of new states of the $^7$He isotope”, Pis'ma v Zh. Èksper. Teoret. Fiz., 101:2 (2015), 73–77; JETP Letters, 101:2 (2015), 69–73
Linking options:
https://www.mathnet.ru/eng/jetpl4523 https://www.mathnet.ru/eng/jetpl/v101/i2/p73
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Abstract page: | 218 | Full-text PDF : | 34 | References: | 37 | First page: | 16 |
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