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Coherent Scattering of Supernova Neutrinos in Next-Generation Liquid Noble Gas Dark Matter Detectors.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Coherent Scattering of Supernova Neutrinos in Next-Generation Liquid Noble Gas Dark Matter Detectors./
作者:	Pophale, Ishanee.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
面頁冊數:	115 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-03, Section: B.
Contained By:	Dissertations Abstracts International83-03B.
標題:	Collaboration. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28731697
ISBN:	9798544225164

Coherent Scattering of Supernova Neutrinos in Next-Generation Liquid Noble Gas Dark Matter Detectors.
Pophale, Ishanee.

Coherent Scattering of Supernova Neutrinos in Next-Generation Liquid Noble Gas Dark Matter Detectors. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 115 p.

Source: Dissertations Abstracts International, Volume: 83-03, Section: B.

Thesis (M.S.)--The University of Manchester (United Kingdom), 2020.

This item must not be sold to any third party vendors.

Dark matter is one of the unresolved mysteries of the universe and the DarkSide20k experiment aims to detect such dark matter particles, particularly the postulated WIMP, via WIMP-nucleus interaction (direct detection). However, neutrino interactions with nuclei are one of the major background contributors in direct dark matter searches. Even though the primary goal of this experiment is the detection of dark matter, it can also serve to provide information regarding supernova, supernova neutrinos and their properties via coherent neutrino-nucleus scattering (CEνNS) which can be studied in the 50 tonne LAr TPC (liquid argon TPC) infrastructure of the DarkSide experiment. The predominant aim of this thesis is to study the coherent scattering of supernova neutrinos in next-generation liquid noble gas dark matter detectors in order to determine the number of supernova neutrinos expected in the detectors and thus the event rate of supernova neutrinos. To measure the event rate, first the differential scattering cross-section for CEνNS interactions is calculated followed by the calculation for recoil energy. Then, the dependence of the differential cross-section on the recoil energy as well as the total cross-section dependency on the incident energies of the supernova neutrinos is studied. Once the previous steps are successfully completed, the nature of the supernova energy spectrum and the supernova neutrino energy-weighted cross-section for xenon and argon targets is determined allowing calculation of the total weighted cross-section; this is one of the crucial parameters for the calculation of the event rate. Subsequently, the supernova flux and the number of nuclei is calculated to finally get the event rate for supernova neutrinos. A model with a 7s supernova signal window has been considered for this particular study.The thesis concludes by calculating the number of expected events predicted to be observed by XENON1T and DarkSide20k to be 30.4 and 213, respectively. After error analysis, the total number of events for xenon and argon are expected to be respectively for supernova at a distance of 10 kpc. For xenon targets, the results are compared with published results for XENON1T. Comparing the result achieved for a xenon target using the developed code with results published by the XENON1T collaboration, a consistency in the result is observed. We believe that we have successfully accomplished a working model which can be used to extract an event rate for any liquid noble gas detector.

ISBN: 9798544225164Subjects--Topical Terms:

3556296
Collaboration.

Coherent Scattering of Supernova Neutrinos in Next-Generation Liquid Noble Gas Dark Matter Detectors.
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