A Dark Matter Search with Darkside-50
Başlık:
A Dark Matter Search with Darkside-50
Yazar:
Koh, Guangyong, author.
ISBN:
9780438048836
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (197 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Advisors: Peter D. Meyers Committee members: Frank Calaprice; Herman Verlinde.
Özet:
DarkSide-50 is a direct detection experiment searching for WIMP dark matter operated at Laboratori Nazionali del Gran Sasso, consisting of a dual-phase argon time projection chamber nested within an active neutron veto. The core detector is filled with a target of argon extracted from underground sources that is depleted in radioactive Argon-39.
This thesis details the blind analysis of 532.4 live-days of data acquired between Aug 2015 and Oct 2017. Particular attention will be paid to the analysis of the electron recoil background, which includes: estimating the rates of radioisotope decay that are responsible; modeling the scintillation response of electron recoil events in liquid argon; and developing a cut utilizing pulse-shape discrimination to control the electron recoil background.
We observe a background- and signal- free result, and report a 90% C.L. upper limit on the spin-independent WIMP-nucleon scattering cross-section of 1.1e-44 cm2 (3.8e-44 cm2, 3.4e-43 cm 2) for a WIMP mass of 100 GeV/c2 (1 TeV/c2}, 10 TeV/c2).
Notlar:
School code: 0181
Tüzel Kişi Ek Girişi:
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(681865.1) | 681865-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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