Search for dark matter and unparticles in events with a Z boson and missing transverse momentum in proton-proton collisions at √s=13 TeV
A search for dark matter and unparticle production at the LHC has been performed using events containing two charged leptons (electrons or muons), consistent with the decay of a Z boson, and large missing transverse momentum. This study is based on data collected with the CMS detector in 2015, co...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Springer Nature
2017
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/63066/1/63066_earch%20for%20dark%20matter%20and%20unparticles_article.pdf http://irep.iium.edu.my/63066/2/63066_earch%20for%20dark%20matter%20and%20unparticles_scopus.pdf http://irep.iium.edu.my/63066/ https://link.springer.com/content/pdf/10.1007%2FJHEP03%282017%29061.pdf |
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| Summary: | A search for dark matter and unparticle production at the LHC has been
performed using events containing two charged leptons (electrons or muons), consistent
with the decay of a Z boson, and large missing transverse momentum. This study is based
on data collected with the CMS detector in 2015, corresponding to an integrated luminosity
of 2.3 fb−1 of proton-proton collisions at the LHC, at a center-of-mass energy of 13 TeV. No
excess over the standard model expectation is observed. Compared to previous searches in
this topology, which exclusively relied on effective field theories, the results are interpreted
in terms of a simplified model of dark matter production for both vector and axial vector
couplings between a mediator and dark matter particles. The first study of this class of
models using CMS data at √
s = 13 TeV is presented. Additionally, effective field theories
of dark matter and unparticle production are used to interpret the data. |
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