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Probing Physics Beyond the Standard Model: Searching for ANITA Anomalous Events with EUSO-SPB2
Probing Physics Beyond the Standard Model: Searching for ANITA Anomalous Events with EUSO-...
Probing Physics Beyond the Standard Model: Searching for ANITA Anomalous Events with EUSO-SPB2

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202105550
ISBN  
9798263393809
DDC  
522.1
저자명  
Matamala, Oscar Fernando Romero.
서명/저자  
Probing Physics Beyond the Standard Model: Searching for ANITA Anomalous Events with EUSO-SPB2
발행사항  
[Sl] : Georgia Institute of Technology, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
86 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Taboada, Ignacio;Otte, Nepomuk.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
초록/해제  
요약Neutrinos in the Very-High Energy (VHE) range (a 10 PeV) and Ultra-High Energy (UHE) range (aEeV) have not been detected. Extending the observation of neutrinos at these energy ranges would enable the exploration of the most energetic processes in the Universe, testing the limits of the Standard Model, and potentially providing evidence related to the nature of Dark Matter. In the past decade, multiple neutrino observatories have been proposed and developed.This has been driven by the discovery of astrophysical neutrinos by the IceCube Neutrino Observatory (IceCube) and the potential identification of their sources. Ground-based, balloon-borne and space observatories are being developed to expand the current observations of astrophysical neutrinos. The Antarctic Impulsive Transient Antenna (ANITA) is particularly relevant to my research.ANITA monitors the Antarctic ice in search of neutrinos using the Askaryan effect. It can detect the radio emission from neutrinos interacting inside the Antarctic ice. ANITA is also sensitive to extensive air showers (EASs) developing in the atmosphere. Events observed by ANITA can be classified as direct detections or reflected detections. ANITA has observed a few anomalous events consistent with direct detections originating from below the Earth's horizon.During its 1st and 3rd flights, ANITA observed events with steep emergence angles. The reconstructed angles of these events are unusually large based on our current understanding of standard model Earth emergence probabilities. The events from ANITA's 4th flight require an explanation for the number of events recorded, which is incompatible with the non-detection of these events by IceCube and Auger if a diffuse flux is assumed. Considering IceCube's lack of detection and ANITA IV's observations, the standard-model explanation of a diffuse neutrino flux is excluded with a " 3σ significance. Follow-up observations on the anomalous events from ANITA IV's flight have not yet been conducted.Interactions of ultra-high energy cosmic rays with matter and radiation create a flux of ultra-high energy astrophysical neutrinos. Those originating from sources too far away to be resolved produce a diffuse flux of neutrinos. Tau neutrinos are not produced in astrophysical processes. When neutrinos travel long distances to reach Earth, they undergo flavor oscillations, resulting in an almost equal flux of the three neutrino flavors.When tau neutrinos pass through the Earth, they can interact inside the Earth and produce a tau lepton through a charged current (CC) interaction. There's a possibility that the tau lepton will escape the Earth and enter the atmosphere. Once in the atmosphere, the tau lepton can cause an extensive air shower (EAS) through its decay products. As these energetic EASs develop, they produce Cherenkov radiation. For the first time, we are attempting to capture images of EASs using the Cherenkov radiation channel from a sub-orbital flight.I worked on the Extreme Universe Space Observatory - Super Pressure Balloon 2 (EUSO-SPB2) project, which took flight on May 13th, 2023. The mission involved 2 telescopes designed to detect EASs: a fluorescence telescope and an IACT. My role was building, characterizing, and operating the IACT on board EUSO-SPB2. Unfortunately, the mission ended prematurely on the night of May 14th, 2023, due to a balloon leak. However, I was able to utilize the observations from the Cherenkov Telescope on board EUSO-SPB2 to investigate anomalous events reported from ANITA-IV.
일반주제명  
Telescopes
일반주제명  
Software
일반주제명  
Atmosphere
일반주제명  
Observatories
일반주제명  
Magnetic fields
일반주제명  
Cosmic rays
일반주제명  
Altitude
일반주제명  
Neutrinos
일반주제명  
Energy
일반주제명  
Geometry
일반주제명  
Radiation
일반주제명  
Universe
일반주제명  
Astronomy
일반주제명  
Astrophysics
일반주제명  
Atomic physics
일반주제명  
Optics
일반주제명  
Particle physics
일반주제명  
Electromagnetics
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aMatamala,  Oscar  Fernando  Romero.
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■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2024.
■520    ▼aNeutrinos  in  the  Very-High  Energy  (VHE)  range  (a  10  PeV)  and  Ultra-High  Energy  (UHE)  range  (aEeV)  have  not  been  detected.  Extending  the  observation  of  neutrinos  at  these  energy  ranges  would  enable  the  exploration  of  the  most  energetic  processes  in  the  Universe,  testing  the  limits  of  the  Standard  Model,  and  potentially  providing  evidence  related  to  the  nature  of  Dark  Matter.  In  the  past  decade,  multiple  neutrino  observatories  have  been  proposed  and  developed.This  has  been  driven  by  the  discovery  of  astrophysical  neutrinos  by  the  IceCube  Neutrino  Observatory  (IceCube)  and  the  potential  identification  of  their  sources.  Ground-based,  balloon-borne  and  space  observatories  are  being  developed  to  expand  the  current  observations  of  astrophysical  neutrinos.  The  Antarctic  Impulsive  Transient  Antenna  (ANITA)  is  particularly  relevant  to  my  research.ANITA  monitors  the  Antarctic  ice  in  search  of  neutrinos  using  the  Askaryan  effect.  It  can  detect  the  radio  emission  from  neutrinos  interacting  inside  the  Antarctic  ice.  ANITA  is  also  sensitive  to  extensive  air  showers  (EASs)  developing  in  the  atmosphere.  Events  observed  by  ANITA  can  be  classified  as  direct  detections  or  reflected  detections.  ANITA  has  observed  a  few  anomalous  events  consistent  with  direct  detections  originating  from  below  the  Earth's  horizon.During  its  1st  and  3rd  flights,  ANITA  observed  events  with  steep  emergence  angles.  The  reconstructed  angles  of  these  events  are  unusually  large  based  on  our  current  understanding  of  standard  model  Earth  emergence  probabilities.  The  events  from  ANITA's  4th  flight  require  an  explanation  for  the  number  of  events  recorded,  which  is  incompatible  with  the  non-detection  of  these  events  by  IceCube  and  Auger  if  a  diffuse  flux  is  assumed.  Considering  IceCube's  lack  of  detection  and  ANITA  IV's  observations,  the  standard-model  explanation  of  a  diffuse  neutrino  flux  is  excluded  with  a  "  3σ  significance.  Follow-up  observations  on  the  anomalous  events  from  ANITA  IV's  flight  have  not  yet  been  conducted.Interactions  of  ultra-high  energy  cosmic  rays  with  matter  and  radiation  create  a  flux  of  ultra-high  energy  astrophysical  neutrinos.  Those  originating  from  sources  too  far  away  to  be  resolved  produce  a  diffuse  flux  of  neutrinos.  Tau  neutrinos  are  not  produced  in  astrophysical  processes.  When  neutrinos  travel  long  distances  to  reach  Earth,  they  undergo  flavor  oscillations,  resulting  in  an  almost  equal  flux  of  the  three  neutrino  flavors.When  tau  neutrinos  pass  through  the  Earth,  they  can  interact  inside  the  Earth  and  produce  a  tau  lepton  through  a  charged  current  (CC)  interaction.  There's  a  possibility  that  the  tau  lepton  will  escape  the  Earth  and  enter  the  atmosphere.  Once  in  the  atmosphere,  the  tau  lepton  can  cause  an  extensive  air  shower  (EAS)  through  its  decay  products.  As  these  energetic  EASs  develop,  they  produce  Cherenkov  radiation.  For  the  first  time,  we  are  attempting  to  capture  images  of  EASs  using  the  Cherenkov  radiation  channel  from  a  sub-orbital  flight.I  worked  on  the  Extreme  Universe  Space  Observatory  -  Super  Pressure  Balloon  2  (EUSO-SPB2)  project,  which  took  flight  on  May  13th,  2023.  The  mission  involved  2  telescopes  designed  to  detect  EASs:  a  fluorescence  telescope  and  an  IACT.  My  role  was  building,  characterizing,  and  operating  the  IACT  on  board  EUSO-SPB2.  Unfortunately,  the  mission  ended  prematurely  on  the  night  of  May  14th,  2023,  due  to  a  balloon  leak.  However,  I  was  able  to  utilize  the  observations  from  the  Cherenkov  Telescope  on  board  EUSO-SPB2  to  investigate  anomalous  events  reported  from  ANITA-IV.
■590    ▼aSchool  code:  0078.
■650  4▼aTelescopes
■650  4▼aSoftware
■650  4▼aAtmosphere
■650  4▼aObservatories
■650  4▼aMagnetic  fields
■650  4▼aCosmic  rays
■650  4▼aAltitude
■650  4▼aNeutrinos
■650  4▼aEnergy
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■650  4▼aUniverse
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■650  4▼aAtomic  physics
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■650  4▼aParticle  physics
■650  4▼aElectromagnetics
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■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360583▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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