Determination of spin and parity of the higgs boson in the WW∗→eνμν decay channel with the ATLAS detector

ATLAS Collaboration

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Studies of the spin and parity quantum numbers of the Higgs boson in the WW→eνμν final state are presented based on proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider corresponding to an integrated luminosity of 20.3 fb−1 at a centre-ofmass energy of √s = 8 TeV. The Standard Model spinparity JCP = 0++ hypothesis is compared with alternative hypotheses for both spin and CP. The case where the observed resonance is a mixture of the Standard-Model-like Higgs boson and CP-even (JCP = 0++) or CP-odd (JCP = 0+−) Higgs boson in scenarios beyond the Standard Model is also studied. The data are found to be consistent with the Standard Model prediction and limits are placed on alternative spin and CP hypotheses including CP mixing in different scenarios.

Original languageEnglish
Pages (from-to)1-40
Number of pages40
JournalEuropean Physical Journal C
Volume75
Issue number5
DOIs
Publication statusPublished - May 27 2015

Fingerprint

Bosons
Higgs bosons
parity
Detectors
detectors
decay
Colliding beam accelerators
quantum numbers
Luminance
luminosity
collisions
predictions
energy

All Science Journal Classification (ASJC) codes

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Cite this

Determination of spin and parity of the higgs boson in the WW∗→eνμν decay channel with the ATLAS detector. / ATLAS Collaboration.

In: European Physical Journal C, Vol. 75, No. 5, 27.05.2015, p. 1-40.

Research output: Contribution to journalArticle

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abstract = "Studies of the spin and parity quantum numbers of the Higgs boson in the WW∗→eνμν final state are presented based on proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider corresponding to an integrated luminosity of 20.3 fb−1 at a centre-ofmass energy of √s = 8 TeV. The Standard Model spinparity JCP = 0++ hypothesis is compared with alternative hypotheses for both spin and CP. The case where the observed resonance is a mixture of the Standard-Model-like Higgs boson and CP-even (JCP = 0++) or CP-odd (JCP = 0+−) Higgs boson in scenarios beyond the Standard Model is also studied. The data are found to be consistent with the Standard Model prediction and limits are placed on alternative spin and CP hypotheses including CP mixing in different scenarios.",
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