BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Pair condensation in excited states of neutron-rich nuclei
DTSTART;VALUE=DATE-TIME:20240528T173000Z
DTEND;VALUE=DATE-TIME:20240528T190000Z
DTSTAMP;VALUE=DATE-TIME:20260316T145219Z
UID:indico-contribution-23145@indico.ific.uv.es
DESCRIPTION:Speakers: Theodor Popa (Horia Hulubei National Institute of Ph
 ysics and Nuclear Engineering)\nRecently we have analysed two types of exc
 ited states generated from a ground state described by a pair condensate [
 1]. \nOne type is obtained by breaking a pair from the ground state conden
 sate and replacing it by ”excited” collective pairs built on time-reve
 rsed single-particle orbits. The second type is described by a condensate 
 of identical  excited pairs. The structure of these excited states is anal
 ysed for the valence neutrons of $^{108}$Sn. For a state-dependent pairing
  interaction\, the first type of excited states agree well with the J=0 st
 ates which are known in $^{108}$Sn. \n The states corresponding to the exc
 ited pair condensate (EPC) appear at low \nenergies\, around the energy of
  the second excited state of the first type\, and they do not have a simpl
 e correspondence with the exact eigenstates of the pairing Hamiltonian. At
  a much higher excitation energy\, of about 20 MeV\, we have found an EPC 
 state which is similar in structure to an exact eigenstate. It is shown th
 at this EPC state has features in common with a giant pairing vibration. \
 n\n[1] Th. Popa\, N. Sandulescu\, and M. Sambataro\, Phys. Rev. C 107 (202
 3) 034318\n\nhttps://indico.ific.uv.es/event/7332/contributions/23145/
LOCATION:ADEIT - Valencia
URL:https://indico.ific.uv.es/event/7332/contributions/23145/
END:VEVENT
END:VCALENDAR