본문

서브메뉴

Searching for Sub-µeV Axions With DMRadio
Searching for Sub-µeV Axions With DMRadio
Searching for Sub-µeV Axions With DMRadio

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202103609
ISBN  
9798288865633
DDC  
530
저자명  
Droster, Alex.
서명/저자  
Searching for Sub-µeV Axions With DMRadio
발행사항  
[Sl] : University of California, Berkeley, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
134 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
주기사항  
Advisor: van Bibber, Karl.
학위논문주기  
Thesis (Ph.D.)--University of California, Berkeley, 2025.
초록/해제  
요약Although astrophysical evidence over the last several decades favors a cosmology in which 85% of the matter of the universe is in the form of "dark matter," the exact particle nature of dark matter remains unknown. Despite its prevalence, directly detecting dark matter has eluded physicists for nearly a century. Central among dark matter candidates is the axion, a particle originally hypothesized to explain the extreme smallness of the angle which violates charge parity symmetry (CP) in the strong force. The axion is also an attractive candidate for low mass dark matter due to a suitable production mechanism in the early universe. Dark Matter Radio 50 Liter (DMRadio-50L) is an experiment that will search for sub-µeV-scale axion dark matter. This region of axion parameter space is particularly compelling because it probes the pre-inflationary axion, thereby offering a unique view into the early universe prior to the moments of inflation. Axions at these masses also emerge naturally out of string theories and theories which seek to unify the four fundamental forces of nature (GUT theories). Additionally, recent developments in cosmic microwave background (CMB) science suggest that the energy scale of inflation may have been much lower than anticipated, implying that Peccei-Quinn symmetry breaking may have happened very early in the development of the universe, naturally leading to a small ma ≲ µeV. However, despite the strong theoretical motivation for pre-inflationary axions, much of the allowable parameter space remains unexplored.DMRadio-50L uses an LC resonator to probe parameter space of the pre-inflationary axion and axion-like particles (ALPs). Although modern axion detectors, or haloscopes, based on microwave cavities are limited by their geometry to search for axions with mass ma ≳ 1 µeV, DMRadio-50L evades this constraint by decoupling the resonator's resonant frequency from its geometry. This dissertation reports the design of DMRadio-50L, which will exclude axions of mass 20 peV ≤ ma ≤ 20 neV (5 kHz ≤ νa ≤ 5 MHz) at axion-photon coupling gaγγ ≳ 5 x 10−15 GeV−1. This work represents an important step forward towards large-scale investigation of the pre-inflationary axion parameter space using the lumped-element method, motivating the development of the next-generation detectors in the DMRadio suite, DMRadio-m3 and DMRadio-GUT.
일반주제명  
Physics
일반주제명  
Particle physics
일반주제명  
Astrophysics
일반주제명  
Computational physics
키워드  
Axion
키워드  
Dark matter
키워드  
DMRadio
키워드  
Microwave engineering
키워드  
Haloscopes
기타저자  
University of California, Berkeley Nuclear Engineering
기본자료저록  
Dissertations Abstracts International. 87-01B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008260126s2025        us                              c    eng  d
■001000017357857
■00520260202103609
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798288865633
■035    ▼a(MiAaPQ)AAI32043062
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530
■1001  ▼aDroster,  Alex.
■24510▼aSearching  for  Sub-µeV  Axions  With  DMRadio
■260    ▼a[Sl]▼bUniversity  of  California,  Berkeley▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a134  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-01,  Section:  B.
■500    ▼aAdvisor:  van  Bibber,  Karl.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Berkeley,  2025.
■520    ▼aAlthough  astrophysical  evidence  over  the  last  several  decades  favors  a  cosmology  in  which  85%  of  the  matter  of  the  universe  is  in  the  form  of  "dark  matter,"  the  exact  particle  nature  of  dark  matter  remains  unknown.  Despite  its  prevalence,  directly  detecting  dark  matter  has  eluded  physicists  for  nearly  a  century.  Central  among  dark  matter  candidates  is  the  axion,  a  particle  originally  hypothesized  to  explain  the  extreme  smallness  of  the  angle  which  violates  charge  parity  symmetry  (CP)  in  the  strong  force.  The  axion  is  also  an  attractive  candidate  for  low  mass  dark  matter  due  to  a  suitable  production  mechanism  in  the  early  universe. Dark  Matter  Radio  50  Liter  (DMRadio-50L)  is  an  experiment  that  will  search  for  sub-µeV-scale  axion  dark  matter.  This  region  of  axion  parameter  space  is  particularly  compelling  because  it  probes  the  pre-inflationary  axion,  thereby  offering  a  unique  view  into  the  early  universe  prior  to  the  moments  of  inflation.  Axions  at  these  masses  also  emerge  naturally  out  of  string  theories  and  theories  which  seek  to  unify  the  four  fundamental  forces  of  nature  (GUT  theories).  Additionally,  recent  developments  in  cosmic  microwave  background  (CMB)  science  suggest  that  the  energy  scale  of  inflation  may  have  been  much  lower  than  anticipated,  implying  that  Peccei-Quinn  symmetry  breaking  may  have  happened  very  early  in  the  development  of  the  universe,  naturally  leading  to  a  small  ma  ≲  µeV.  However,  despite  the  strong  theoretical  motivation  for  pre-inflationary  axions,  much  of  the  allowable  parameter  space  remains  unexplored.DMRadio-50L  uses  an  LC  resonator  to  probe  parameter  space  of  the  pre-inflationary  axion  and  axion-like  particles  (ALPs).  Although  modern  axion  detectors,  or  haloscopes,  based  on  microwave  cavities  are  limited  by  their  geometry  to  search  for  axions  with  mass  ma  ≳  1  µeV,  DMRadio-50L  evades  this  constraint  by  decoupling  the  resonator's  resonant  frequency  from  its  geometry.  This  dissertation  reports  the  design  of  DMRadio-50L,  which  will  exclude  axions  of  mass  20  peV  ≤  ma  ≤  20  neV  (5  kHz  ≤  νa  ≤  5  MHz)  at  axion-photon  coupling  gaγγ  ≳  5  x  10−15  GeV−1.  This  work  represents  an  important  step  forward  towards  large-scale  investigation  of  the  pre-inflationary  axion  parameter  space  using  the  lumped-element  method,  motivating  the  development  of  the  next-generation  detectors  in  the  DMRadio  suite,  DMRadio-m3  and  DMRadio-GUT.
■590    ▼aSchool  code:  0028.
■650  4▼aPhysics
■650  4▼aParticle  physics
■650  4▼aAstrophysics
■650  4▼aComputational  physics
■653    ▼aAxion
■653    ▼aDark  matter
■653    ▼aDMRadio
■653    ▼aMicrowave  engineering
■653    ▼aHaloscopes
■690    ▼a0605
■690    ▼a0798
■690    ▼a0596
■690    ▼a0216
■71020▼aUniversity  of  California,  Berkeley▼bNuclear  Engineering.
■7730  ▼tDissertations  Abstracts  International▼g87-01B.
■790    ▼a0028
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357857▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    신착도서 더보기
    최근 3년간 통계입니다.

    소장정보

    • 예약
    • 소재불명신고
    • 나의폴더
    • 우선정리요청
    • 비도서대출신청
    • 야간 도서대출신청
    소장자료
    등록번호 청구기호 소장처 대출가능여부 대출정보
    TF14880 전자도서 대출가능 마이폴더 부재도서신고 비도서대출신청 야간 도서대출신청

    * 대출중인 자료에 한하여 예약이 가능합니다. 예약을 원하시면 예약버튼을 클릭하십시오.

    해당 도서를 다른 이용자가 함께 대출한 도서

    관련 인기도서

    로그인 후 이용 가능합니다.