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Search for nearly mass-degenerate charginos and neutralinos at LEP

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Search for nearly mass-degenerate charginos and neutralinos at LEP. / OPAL Collaboration.

In: European Physical Journal C: Particles and Fields, Vol. 29, No. 4, 08.2003, p. 479-489.

Research output: Contribution to journalJournal articlepeer-review

Harvard

OPAL Collaboration 2003, 'Search for nearly mass-degenerate charginos and neutralinos at LEP', European Physical Journal C: Particles and Fields, vol. 29, no. 4, pp. 479-489. https://doi.org/10.1140/epjc/s2003-01237-x

APA

OPAL Collaboration (2003). Search for nearly mass-degenerate charginos and neutralinos at LEP. European Physical Journal C: Particles and Fields, 29(4), 479-489. https://doi.org/10.1140/epjc/s2003-01237-x

Vancouver

OPAL Collaboration. Search for nearly mass-degenerate charginos and neutralinos at LEP. European Physical Journal C: Particles and Fields. 2003 Aug;29(4):479-489. https://doi.org/10.1140/epjc/s2003-01237-x

Author

OPAL Collaboration. / Search for nearly mass-degenerate charginos and neutralinos at LEP. In: European Physical Journal C: Particles and Fields. 2003 ; Vol. 29, No. 4. pp. 479-489.

Bibtex

@article{7b5fea72519042a484059ad4c19aff0a,
title = "Search for nearly mass-degenerate charginos and neutralinos at LEP",
abstract = "A search was performed for charginos with masses close to the mass of the lightest neutralino in e+e− collisions at centre-of-mass energies of 189-209 GeV recorded by the OPAL detector at LEP. Events were selected if they had an observed high-energy photon from initial state radiation, reducing the dominant background from two-photon scattering to a negligible level. No significant excess over Standard Model expectations has been observed in the analysed data set corresponding to an integrated luminosity of 570 pb-1. Upper limits were derived on the chargino pair-production cross-section, and lower limits on the chargino mass were derived in the context of the Minimal Supersymmetric Extension of the Standard Model for the gravity- and anomaly-mediated Supersymmetry breaking scenarios.",
author = "Bailey, {Ian Richard} and Vakhtang Kartvelishvili and {OPAL Collaboration}",
year = "2003",
month = aug,
doi = "10.1140/epjc/s2003-01237-x",
language = "English",
volume = "29",
pages = "479--489",
journal = "European Physical Journal C: Particles and Fields",
issn = "1434-6044",
publisher = "SPRINGER",
number = "4",

}

RIS

TY - JOUR

T1 - Search for nearly mass-degenerate charginos and neutralinos at LEP

AU - Bailey, Ian Richard

AU - Kartvelishvili, Vakhtang

AU - OPAL Collaboration

PY - 2003/8

Y1 - 2003/8

N2 - A search was performed for charginos with masses close to the mass of the lightest neutralino in e+e− collisions at centre-of-mass energies of 189-209 GeV recorded by the OPAL detector at LEP. Events were selected if they had an observed high-energy photon from initial state radiation, reducing the dominant background from two-photon scattering to a negligible level. No significant excess over Standard Model expectations has been observed in the analysed data set corresponding to an integrated luminosity of 570 pb-1. Upper limits were derived on the chargino pair-production cross-section, and lower limits on the chargino mass were derived in the context of the Minimal Supersymmetric Extension of the Standard Model for the gravity- and anomaly-mediated Supersymmetry breaking scenarios.

AB - A search was performed for charginos with masses close to the mass of the lightest neutralino in e+e− collisions at centre-of-mass energies of 189-209 GeV recorded by the OPAL detector at LEP. Events were selected if they had an observed high-energy photon from initial state radiation, reducing the dominant background from two-photon scattering to a negligible level. No significant excess over Standard Model expectations has been observed in the analysed data set corresponding to an integrated luminosity of 570 pb-1. Upper limits were derived on the chargino pair-production cross-section, and lower limits on the chargino mass were derived in the context of the Minimal Supersymmetric Extension of the Standard Model for the gravity- and anomaly-mediated Supersymmetry breaking scenarios.

U2 - 10.1140/epjc/s2003-01237-x

DO - 10.1140/epjc/s2003-01237-x

M3 - Journal article

VL - 29

SP - 479

EP - 489

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

SN - 1434-6044

IS - 4

ER -