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Some New Techniques for Probing IceCube Data.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Some New Techniques for Probing IceCube Data./
作者:	Ty, Bunheng.
面頁冊數:	1 online resource (61 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-04, Section: B.
Contained By:	Dissertations Abstracts International84-04B.
標題:	Astrophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29393718click for full text (PQDT)
ISBN:	9798351432083

Some New Techniques for Probing IceCube Data.
Ty, Bunheng.

Some New Techniques for Probing IceCube Data. - 1 online resource (61 pages)

Source: Dissertations Abstracts International, Volume: 84-04, Section: B.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2022.

Includes bibliographical references

The idea of characterizing an IceCube event by its location and magnitude of maximum photon density is proven useful. A complete set of new filter tools built around this idea is successfully developed and used to detect high-energy neutrino interactions inside IceCube. The two key features to search for are: a highly localized deposit of photoelectrons, and a lack of a veto track leading up to it. The first is achieved reliably by counting photoelectrons making up the most photon-dense region of the event. The second is achieved with moving cylinders(160 m radius, 240 m half-height, 0.3 m/ns speed), one at each possible direction from the sky, collecting any DOM forming a muon track pattern with the region. The power of the new tools is demonstrated with an event selection to search for high-energy atmospheric neutrinos through the self-veto event channel. The no-veto condition typical with a starting-event search is loosened to allow up to a very small veto, just enough to still be outside the region of the immense atmospheric muon background. The final selection consists of 23 high-energy neutrino interaction events, one of which is a self-veto event candidate, of134 TeV reconstructed energy. This result, though limited, is a strong hint to a measurable contribution of the atmospheric component to the neutrino flux at the high energies.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798351432083Subjects--Topical Terms:

535904
Astrophysics.
Subjects--Index Terms:

IceCube eventIndex Terms--Genre/Form:

542853
Electronic books.

Some New Techniques for Probing IceCube Data.
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504 $a Includes bibliographical references
520 $a The idea of characterizing an IceCube event by its location and magnitude of maximum photon density is proven useful. A complete set of new filter tools built around this idea is successfully developed and used to detect high-energy neutrino interactions inside IceCube. The two key features to search for are: a highly localized deposit of photoelectrons, and a lack of a veto track leading up to it. The first is achieved reliably by counting photoelectrons making up the most photon-dense region of the event. The second is achieved with moving cylinders(160 m radius, 240 m half-height, 0.3 m/ns speed), one at each possible direction from the sky, collecting any DOM forming a muon track pattern with the region. The power of the new tools is demonstrated with an event selection to search for high-energy atmospheric neutrinos through the self-veto event channel. The no-veto condition typical with a starting-event search is loosened to allow up to a very small veto, just enough to still be outside the region of the immense atmospheric muon background. The final selection consists of 23 high-energy neutrino interaction events, one of which is a self-veto event candidate, of134 TeV reconstructed energy. This result, though limited, is a strong hint to a measurable contribution of the atmospheric component to the neutrino flux at the high energies.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Astrophysics. $3 535904
653 $a IceCube event
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