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Novel Searches for Dark Matter in Electron Traps and Neutrino Detectors
Novel Searches for Dark Matter in Electron Traps and Neutrino Detectors
Novel Searches for Dark Matter in Electron Traps and Neutrino Detectors

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202105627
ISBN  
9798265427991
DDC  
539.721
저자명  
Wong, Samuel S.Y.
서명/저자  
Novel Searches for Dark Matter in Electron Traps and Neutrino Detectors
발행사항  
[Sl] : Stanford University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
169 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Graham, Peter.
학위논문주기  
Thesis (Ph.D.)--Stanford University, 2025.
초록/해제  
요약The particle nature of dark matter is one of the major open problems in fundamental physics. This dissertation explores novel detection methods for various dark matter candidates, bringing techniques from atomic physics and neutrino physics into dark matter searches.Ultralight dark matter in the meV mass range is notoriously difficult to detect, being too high in frequency for high-Q cavity resonators yet below the energy threshold of single-photon detectors. We propose using highly excited cyclotron states of a trapped electron to detect meV axion and dark photon dark matter. When the dark matter mass matches the cyclotron frequency, the cyclotron state is resonantly excited, with a transition probability proportional to its initial quantum number. By optimizing key experimental parameters, we minimize the required averaging time for cyclotron detection, permitting detection of a highly excited state before its decay. An open-endcap trap design enables the external photon signal to be directed into the trap, rendering our background-free detector compatible with large focusing cavities, such as the BREAD proposal. These and other optimizations enable us to probe the QCD-axion parameter space in the meV range.Inelastic dark matter, such as the Higgsino, with large mass splittings evades conventional WIMP direct detection but can produce distinctive photon signals in large neutrino detectors like JUNO, following upscattering in the Earth and subsequent decay. We show that an enhanced high-velocity tail of the dark matter distribution due to the Large Magellanic Cloud improves the sensitivity of this method, and that adding a large volume of heavy elements, such as lead or uranium, around the detector could further take advantage of this effect.
일반주제명  
Neutrinos
일반주제명  
Spectrum allocation
일반주제명  
Bandwidths
일반주제명  
Dark matter
일반주제명  
Magnetic fields
일반주제명  
Radiation
일반주제명  
Electric fields
일반주제명  
Astrophysics
일반주제명  
Atomic physics
일반주제명  
Electrical engineering
일반주제명  
Optics
일반주제명  
Particle physics
일반주제명  
Theoretical physics
일반주제명  
Electromagnetics
기타저자  
Stanford University.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
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MARC

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■020    ▼a9798265427991
■035    ▼a(MiAaPQ)AAI32316565
■035    ▼a(MiAaPQ)Stanfordpv966wc3322
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a539.721
■1001  ▼aWong,  Samuel  S.Y.
■24510▼aNovel  Searches  for  Dark  Matter  in  Electron  Traps  and  Neutrino  Detectors
■260    ▼a[Sl]▼bStanford  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a169  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Graham,  Peter.
■5021  ▼aThesis  (Ph.D.)--Stanford  University,  2025.
■520    ▼aThe  particle  nature  of  dark  matter  is  one  of  the  major  open  problems  in  fundamental  physics.  This  dissertation  explores  novel  detection  methods  for  various  dark  matter  candidates,  bringing  techniques  from  atomic  physics  and  neutrino  physics  into  dark  matter  searches.Ultralight  dark  matter  in  the  meV  mass  range  is  notoriously  difficult  to  detect,  being  too  high  in  frequency  for  high-Q  cavity  resonators  yet  below  the  energy  threshold  of  single-photon  detectors.  We  propose  using  highly  excited  cyclotron  states  of  a  trapped  electron  to  detect  meV  axion  and  dark  photon  dark  matter.  When  the  dark  matter  mass  matches  the  cyclotron  frequency,  the  cyclotron  state  is  resonantly  excited,  with  a  transition  probability  proportional  to  its  initial  quantum  number.  By  optimizing  key  experimental  parameters,  we  minimize  the  required  averaging  time  for  cyclotron  detection,  permitting  detection  of  a  highly  excited  state  before  its  decay.  An  open-endcap  trap  design  enables  the  external  photon  signal  to  be  directed  into  the  trap,  rendering  our  background-free  detector  compatible  with  large  focusing  cavities,  such  as  the  BREAD  proposal.  These  and  other  optimizations  enable  us  to  probe  the  QCD-axion  parameter  space  in  the  meV  range.Inelastic  dark  matter,  such  as  the  Higgsino,  with  large  mass  splittings  evades  conventional  WIMP  direct  detection  but  can  produce  distinctive  photon  signals  in  large  neutrino  detectors  like  JUNO,  following  upscattering  in  the  Earth  and  subsequent  decay.  We  show  that  an  enhanced  high-velocity  tail  of  the  dark  matter  distribution  due  to  the  Large  Magellanic  Cloud  improves  the  sensitivity  of  this  method,  and  that  adding  a  large  volume  of  heavy  elements,  such  as  lead  or  uranium,  around  the  detector  could  further  take  advantage  of  this  effect.
■590    ▼aSchool  code:  0212.
■650  4▼aNeutrinos
■650  4▼aSpectrum  allocation
■650  4▼aBandwidths
■650  4▼aDark  matter
■650  4▼aMagnetic  fields
■650  4▼aRadiation
■650  4▼aElectric  fields
■650  4▼aAstrophysics
■650  4▼aAtomic  physics
■650  4▼aElectrical  engineering
■650  4▼aOptics
■650  4▼aParticle  physics
■650  4▼aTheoretical  physics
■650  4▼aElectromagnetics
■690    ▼a0596
■690    ▼a0748
■690    ▼a0544
■690    ▼a0752
■690    ▼a0798
■690    ▼a0753
■690    ▼a0607
■71020▼aStanford  University.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0212
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360842▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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