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Search for Dark Matter Produced in A...

Zientek, Margaret Eldridge.

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Search for Dark Matter Produced in Association with a Higgs Boson Decaying to Two Photons in Proton-Proton Collisions at 13 TEV with the CMS Detector.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Search for Dark Matter Produced in Association with a Higgs Boson Decaying to Two Photons in Proton-Proton Collisions at 13 TEV with the CMS Detector./
作者:	Zientek, Margaret Eldridge.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:	173 p.
附註:	Source: Dissertations Abstracts International, Volume: 80-12, Section: B.
Contained By:	Dissertations Abstracts International80-12B.
標題:	Physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13813928
ISBN:	9781392249642

Search for Dark Matter Produced in Association with a Higgs Boson Decaying to Two Photons in Proton-Proton Collisions at 13 TEV with the CMS Detector.
Zientek, Margaret Eldridge.

Search for Dark Matter Produced in Association with a Higgs Boson Decaying to Two Photons in Proton-Proton Collisions at 13 TEV with the CMS Detector. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 173 p.

Source: Dissertations Abstracts International, Volume: 80-12, Section: B.

Thesis (Ph.D.)--Cornell University, 2019.

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

Results are presented from a search for dark matter particles produced in association with a Higgs boson decaying to two photons in proton-proton collision data collected at a center-of-mass energy of 13 TeV. The search is based on data collected in 2015 and 2016 by the CMS experiment at the CERN Large Hadron Collider. The analyzed data correspond to an integrated luminosity of 2.2/fb and 35.9/fb, respectively. No significant excess over the standard model background expectation is observed. The results are used to constrain at the 95% confidence level dark matter production cross section in the context of two simplified models. A Z' mediator in a Z'-two-Higgs-doublet model with mass between 550 and 860 GeV is excluded for dark matter masses below 100 GeV. Additionally, in a baryonic Z' model, Z' masses below 574 GeV are excluded, for a dark matter mass of 1 GeV.The thesis also explores some of the challenges associated with the upgraded High-Luminosity Large Hadron Collider. One important challenge will be integrating real-time charged particle track finding and reconstruction into a hardware data selection system. A proposed FPGA-based solution that reconstructs tracks within 4 us is discussed.

ISBN: 9781392249642Subjects--Topical Terms:

516296
Physics.
Subjects--Index Terms:

CMS

Search for Dark Matter Produced in Association with a Higgs Boson Decaying to Two Photons in Proton-Proton Collisions at 13 TEV with the CMS Detector.
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520 $a Results are presented from a search for dark matter particles produced in association with a Higgs boson decaying to two photons in proton-proton collision data collected at a center-of-mass energy of 13 TeV. The search is based on data collected in 2015 and 2016 by the CMS experiment at the CERN Large Hadron Collider. The analyzed data correspond to an integrated luminosity of 2.2/fb and 35.9/fb, respectively. No significant excess over the standard model background expectation is observed. The results are used to constrain at the 95% confidence level dark matter production cross section in the context of two simplified models. A Z' mediator in a Z'-two-Higgs-doublet model with mass between 550 and 860 GeV is excluded for dark matter masses below 100 GeV. Additionally, in a baryonic Z' model, Z' masses below 574 GeV are excluded, for a dark matter mass of 1 GeV.The thesis also explores some of the challenges associated with the upgraded High-Luminosity Large Hadron Collider. One important challenge will be integrating real-time charged particle track finding and reconstruction into a hardware data selection system. A proposed FPGA-based solution that reconstructs tracks within 4 us is discussed.
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