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SUMMARY:In-beam gamma-ray spectroscopy of 136Te within the HiCARI project
DTSTART;VALUE=DATE-TIME:20241120T094500Z
DTEND;VALUE=DATE-TIME:20241120T100000Z
DTSTAMP;VALUE=DATE-TIME:20260421T110400Z
UID:indico-contribution-25484@indico.ific.uv.es
DESCRIPTION:Speakers: Jaime Acosta Loza (IEM-CSIC)\nWith the arrival of th
 e HiCARI campaign [1] to the RIBF facility at RIKEN (Japan)\, a series of 
 in-\nbeam g-ray spectroscopy experiments was performed in order to expand 
 the previous spectroscopic\ninformation on exotic\, neutron-rich nuclei of
  intermediate mass. Previously\, incompatible results\nregarding the reduc
 ed transition probability for the decay of the first excited 2+ state\, B(
 E2)\, in 136Te\nwere reported from Coulex experiments and direct lifetime 
 measurements using the fast-timing\ntechnique [2-5]. Due to the better ene
 rgy resolution of the Ge detectors forming the HiCARI array\,\nas compared
  to the previously used DALI2 NaI(Tl) array [6]\, in experiment NP1912-RIB
 F193 it is\npossible to extract\, from the same data set\, B(E2) values fr
 om the cross sections measured for the\ninelastic excitation on Au and Be 
 targets on the one hand and the analysis of Doppler-shifted\nlineshapes on
  the other. The new results will shed light on the conflict between transi
 tion strengths\nderived from Coulex and lifetime measurements reported for
  several nuclei in the literature. \nIn this conference I aim to present l
 ifetime results for the excited states of 136Te\, populated via\nCoulex an
 d one neutron knockout reactions. Moreover\, a comprehensive description o
 f the\nemployed analysis methods\, as well as a full characterization of t
 he HiCARI array and its sources of\nsystematic uncertainties will be prese
 nted\, as other cases corresponding to different lifetime regimes\n(e.g. 1
 31Sn\, 131In) were studied in detail too.\nReferences\n[1] https://www.nis
 hina.riken.jp/collaboration/SUNFLOWER/devices/hrarray/index.php\, accessed
  12-01-2024\n[2] J. M. Allmond et al.\, Phys. Rev. Lett. 118\, 092503 (201
 7)\n[3] M. Danchev et al.\, Phys. Rev. C 84\, 061306(R) (2011)\n[4] L.M. F
 raile et al.\, Nucl. Phys. A 805\, 218 (2008).\n[5] V. Vaquero et al.\, Ph
 ys. Rev. C 99\, 034306 (2019)\n[6] S. Takeuchi et al.\, Nucl. Instr. Meth.
  A 763\, 596 (2014)\n\nhttps://indico.ific.uv.es/event/7664/contributions/
 25484/
LOCATION:
URL:https://indico.ific.uv.es/event/7664/contributions/25484/
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