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Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP

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Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP. / OPAL Collaboration.

In: European Physical Journal C: Particles and Fields, Vol. 27, No. 3, 04.2003, p. 311-329.

Research output: Contribution to journalJournal article

Harvard

OPAL Collaboration 2003, 'Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP', European Physical Journal C: Particles and Fields, vol. 27, no. 3, pp. 311-329. https://doi.org/10.1140/epjc/s2002-01115-1

APA

OPAL Collaboration (2003). Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP. European Physical Journal C: Particles and Fields, 27(3), 311-329. https://doi.org/10.1140/epjc/s2002-01115-1

Vancouver

OPAL Collaboration. Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP. European Physical Journal C: Particles and Fields. 2003 Apr;27(3):311-329. https://doi.org/10.1140/epjc/s2002-01115-1

Author

OPAL Collaboration. / Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP. In: European Physical Journal C: Particles and Fields. 2003 ; Vol. 27, No. 3. pp. 311-329.

Bibtex

@article{b6ecfeb4d94146c19424a04d2fd7e439,
title = "Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP",
abstract = "This paper describes topological searches for neutral scalar bosons S0 produced in association with a Z0 boson via the Bjorken process e+e−→S0Z0 at centre-of-mass energies of 91 GeV and 183-209 GeV. These searches are based on studies of the recoil mass spectrum of Z0→e+e− and μ+μ− events and on a search for S0Z0 with Z0→νν¯ and S0→e+e− or photons. They cover the decays of the S0 into an arbitrary combination of hadrons, leptons, photons and invisible particles as well as the possibility that it might be stable.No indication for a signal is found in the data and upper limits on the cross section of the Bjorken process are calculated. Cross-section limits are given in terms of a scale factor k with respect to the Standart Model cross section for the Higgs-strahlung process e+e−→HSMZ0.These results can be interpreted in general scenarios independently of the decay modes of the S0. The examples considered here are the production of a single new scalar particle with a decay width smaller than the detector mass resolution, and for the first time, two scenarios with continuous mass distributions, due to a single very broad state or several states close in mass.",
author = "Bailey, {Ian Richard} and Vakhtang Kartvelishvili and {OPAL Collaboration}",
year = "2003",
month = apr
doi = "10.1140/epjc/s2002-01115-1",
language = "English",
volume = "27",
pages = "311--329",
journal = "European Physical Journal C: Particles and Fields",
issn = "1434-6044",
publisher = "SPRINGER",
number = "3",

}

RIS

TY - JOUR

T1 - Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP

AU - Bailey, Ian Richard

AU - Kartvelishvili, Vakhtang

AU - OPAL Collaboration

PY - 2003/4

Y1 - 2003/4

N2 - This paper describes topological searches for neutral scalar bosons S0 produced in association with a Z0 boson via the Bjorken process e+e−→S0Z0 at centre-of-mass energies of 91 GeV and 183-209 GeV. These searches are based on studies of the recoil mass spectrum of Z0→e+e− and μ+μ− events and on a search for S0Z0 with Z0→νν¯ and S0→e+e− or photons. They cover the decays of the S0 into an arbitrary combination of hadrons, leptons, photons and invisible particles as well as the possibility that it might be stable.No indication for a signal is found in the data and upper limits on the cross section of the Bjorken process are calculated. Cross-section limits are given in terms of a scale factor k with respect to the Standart Model cross section for the Higgs-strahlung process e+e−→HSMZ0.These results can be interpreted in general scenarios independently of the decay modes of the S0. The examples considered here are the production of a single new scalar particle with a decay width smaller than the detector mass resolution, and for the first time, two scenarios with continuous mass distributions, due to a single very broad state or several states close in mass.

AB - This paper describes topological searches for neutral scalar bosons S0 produced in association with a Z0 boson via the Bjorken process e+e−→S0Z0 at centre-of-mass energies of 91 GeV and 183-209 GeV. These searches are based on studies of the recoil mass spectrum of Z0→e+e− and μ+μ− events and on a search for S0Z0 with Z0→νν¯ and S0→e+e− or photons. They cover the decays of the S0 into an arbitrary combination of hadrons, leptons, photons and invisible particles as well as the possibility that it might be stable.No indication for a signal is found in the data and upper limits on the cross section of the Bjorken process are calculated. Cross-section limits are given in terms of a scale factor k with respect to the Standart Model cross section for the Higgs-strahlung process e+e−→HSMZ0.These results can be interpreted in general scenarios independently of the decay modes of the S0. The examples considered here are the production of a single new scalar particle with a decay width smaller than the detector mass resolution, and for the first time, two scenarios with continuous mass distributions, due to a single very broad state or several states close in mass.

U2 - 10.1140/epjc/s2002-01115-1

DO - 10.1140/epjc/s2002-01115-1

M3 - Journal article

VL - 27

SP - 311

EP - 329

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

SN - 1434-6044

IS - 3

ER -