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SUMMARY:Seminar - Jong-Chul Park (Chungnam Natl. U.)
DTSTART:20260825T020000Z
DTEND:20260825T030000Z
DTSTAMP:20260827T053500Z
UID:indico-event-12@ihepco.yonsei.ac.kr
DESCRIPTION:Title :  Status of GLIMPSE and Angular Scanning\nAbstract:\n\
 nWe propose a novel detection strategy for super-light dark matter (DM)\, 
 m_DM ~ O(keV)\, using a detector based on Graphene Josephson Junctions (GJ
 J). By intimately integrating the π-bond electrons of graphene as the tar
 get material into a Josephson junction\, we create a sensor capable of det
 ecting energy deposits as small as O(meV). We evaluate the scattering rate
 s between DM and free electrons in the two-dimensional graphene\, incorpor
 ating Pauli-blocking factors and in-medium screening effects. Our analysis
  of pg- to µg-scale detectors demonstrates that this setup achieves super
 ior experimental sensitivity due to its extremely low energy threshold. Fu
 rthermore\, we demonstrate that this 2D direct detection framework allows 
 for the determination of the DM mass scale through directionality observab
 les. Due to the relative motion of the Earth through the Galactic DM halo\
 , the event rates depend non-trivially on the orientation of the graphene 
 plane relative to the DM flux. We show that the curvature of this resultin
 g angular spectrum encodes critical information about the particle mass. B
 y validating these theoretical expectations through numerical analysis of 
 the GJJ detector\, we establish that this platform serves not only as a hi
 ghly sensitive probe for the discovery of super-light DM but also as a pre
 cision instrument for measuring its fundamental properties.\n\n\nhttps://i
 hepco.yonsei.ac.kr/event/12/
LOCATION:S557 (Yonsei University)
URL:https://ihepco.yonsei.ac.kr/event/12/
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