11-16 July 2022
Europe/Moscow timezone
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$^8$He SPECTROSCOPY IN STOPPED PION ABSORPTION REACTION

12 Jul 2022, 13:10
20m
Физический факультет, ауд. 5-19

Физический факультет, ауд. 5-19

Oral talk (15 min + 5 min questions) Nuclear structure: theory and experiment

Speaker

Tatiana Leonova

Description

Level structure of heavy helium isotope $^8$He is studied in the reactions of stopped pion absorption $^9$Be($\pi^-,p$)X, $^{10}$B($\pi^-,pp$)X, $^{11}$B($\pi^-,pd$)X, $^{12}$C($\pi^-,p^3$Нe)X, $^{14}$C($\pi^-,d^4$Нe)X, $^{14}$C($\pi^-,t^3$Нe)X. The experiment was carried out at the LANL with a two-arm semiconductor spectrometer.  The ground and excited states have been observed. The assumption  that the  excited state E$_x \approx $ 3 MeV is a soft dipole mode is made. The states E$_x \approx $ 9.3 MeV, 11.5 MeV, 12.2 MeV  have been observed for the first time. Parameters of excited states have been compared with data of other experimental and theoretical works.

The speaker is a student or young scientist No
Section 1. Nuclear structure: theory and experiment

Primary authors

Tatiana Leonova Dr Yu. Gurov (DLNP JIRN, MEPhI) Dr Boris Chernyshev (National Research Nuclear University “MEPhI) Sergey Lapushkin (National Research Nuclear University "MEPhI") Dr Vyacheslav Sandukovsky (Joint Institute for Nuclear Research (JINR)) Michael Tel’kushev (National Research Nuclear University "MEPhI")

Presentation Materials