On the possibility to observe a heavy Higgs via H⁰ →Z⁰Z⁰ →llνν decays at CMS

A possibility to observe with the CMS a heavy (MH  200 GeV/c²) Higgs decaying via H⁰ → Z⁰Z⁰ → llνν is studied. It is suggested that for Higgs masses close to threshold of H⁰ decay to the Z⁰Z⁰ pair. The “irreducible” background due to non-resonance production of weak boson pairs can be eliminated b...

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Datum:2004
Hauptverfasser: Levchuk, L.G., Soroka, D.V., Sorokin, P.V., Voronko, M.V., Zub, S.S.
Format: Artikel
Sprache:English
Veröffentlicht: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2004
Schriftenreihe:Вопросы атомной науки и техники
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Online Zugang:http://dspace.nbuv.gov.ua/handle/123456789/80512
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:On the possibility to observe a heavy Higgs via H⁰ →Z⁰Z⁰ →llνν decays at CMS / L.G. Levchuk, D.V. Soroka, P.V. Sorokin, M.V. Voronko, S.S. Zub // Вопросы атомной науки и техники. — 2004. — № 5. — С. 9-13. — Бібліогр.: 9 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Zusammenfassung:A possibility to observe with the CMS a heavy (MH  200 GeV/c²) Higgs decaying via H⁰ → Z⁰Z⁰ → llνν is studied. It is suggested that for Higgs masses close to threshold of H⁰ decay to the Z⁰Z⁰ pair. The “irreducible” background due to non-resonance production of weak boson pairs can be eliminated by a proper choice of event selection criteria leading to signature “l⁺ l⁻ + ET miss+ jets”. This observation is illustrated by PYTHIA/CMSJET simulations. For suppression of the Z+jets and tt contributions to the background, two sets of kinematics cuts are considered.