Uncovering quirk signal via energy loss inside tracker

A quirk propagating through a detector is subject to the Lorentz force, a new confining gauge force, and the frictional force from ionization energy loss. At the LHC, it was found that the monojet search and the coplanar search were able to constrain such a quirk signal. Inspired by the coplanar sea...

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Veröffentlicht in:Physical review. D 2020-09, Vol.102 (5), p.1, Article 056006
Hauptverfasser: Li, Jinmian, Li, Tianjun, Pei, Junle, Zhang, Wenxing
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Sprache:eng
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Zusammenfassung:A quirk propagating through a detector is subject to the Lorentz force, a new confining gauge force, and the frictional force from ionization energy loss. At the LHC, it was found that the monojet search and the coplanar search were able to constrain such a quirk signal. Inspired by the coplanar search proposed by Knapen et al. [Phys. Rev. D 96, 115015 (2017)], we develop a new search that also utilizes the information of the relatively large ionization energy loss inside the tracker. Our algorithm has improved efficiency in finding quirk signals with a wide oscillation amplitude. Because of our trigger strategy, the Z(->nu nu) + jets process overlaid by pileup events is the dominant background. We find that the similar to 100 fb(-1) dataset at the LHC will be able to probe the colored fermion (scalar) quirks with masses up to 2.1 (1.1) TeV and the color neutral fermion (scalar) quirks with masses up to 450 (150) GeV, respectively.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.102.056006