Search for Long-Lived Doubly-Charged Higgs Boson Production in anti-p p Collisions at sqrt(s)=1.96 TeV using Run 2 CDF.

Tuttle, J. P.

Technical Information Center Oak Ridge Tennessee

关键词: Higgs bosons;    Daughter products;    Decay;    Fermilab collider detector;    Fermilab Tevatron;   

RP-ID  :  DE2009948160

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

We present a search for a quasi-stable doubly-charged Higgs particle at CDF using the Fermilab Tevatron for (radical)s = 1.96 TeV. The data presented are from approximately 290 pb(sup -1) of integrated luminosity collected using the upgraded Run 2 Collider Detector at Fermilab. These data were taken between February, 2002 and February, 2004. The long-lived decay products of Z's are selected in the central detector region ('(eta)' < 1.0). They select events triggered on a muon candidate having p(sub T) > 18 GeV in the event. After offline reconstruction, they require two isolated tracks (p(sub T) > 20 GeV) in the event, one of which points to a stub in a muon detector. Since the search is based on the increased ionization a doubly-charged particle would produce as it passes through the detector, they require that both tracks be highly ionizing for an event to be selected as a H(sup (+-)(+-)) candidate. No such candidates are observed in the data. They set a lower mass limit of 146 GeV on a quasi-stable H(sup (+-)(+-)) boson.