Spectral Decomposition of Missing Transverse Energy at Hadron Colliders

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Title
Spectral Decomposition of Missing Transverse Energy at Hadron Colliders
Author(s)
Kyu Jung Bae; Tae Hyun Jung; Myeonghun Park
Publication Date
2017-12
Journal
PHYSICAL REVIEW LETTERS, v.119, no.26, pp.261801 -
Publisher
AMER PHYSICAL SOC
Abstract
We propose a spectral decomposition to systematically extract information of dark matter at hadron colliders. The differential cross section of events with missing transverse energy (ET) can be expressed by a linear combination of basis functions. In the case of s-channel mediator models for dark matter particle production, basis functions are identified with the differential cross sections of subprocesses of virtual mediator and visible particle production while the coefficients of basis functions correspond to dark matter invariant mass distribution in the manner of the Källén-Lehmann spectral decomposition. For a given ET data set and mediator model, we show that one can differentiate a certain dark matter-mediator interaction from another through spectral decomposition. © 2017 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/4402
ISSN
0031-9007
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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