KIT | KIT-Bibliothek | Impressum | Datenschutz

Search for Higgs-like particles produced in association with bottom quarks in proton-antiproton collisions

CDF Collaboration; Aaltonen, T.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J. A.; Arisawa, T.; Artikov, A.; Asaadi, J.; Ashmanskas, W.; Auerbach, B.; Aurisano, A.; Azfar, F.; Badgett, W.; Bae, T.; Barbaro-Galtieri, A.; Barnes, V. E.; Barnett, B. A.; ... mehr

Abstract:
We report on a search for a spin-zero non–standard model particle in proton-antiproton collisions collected by the Collider Detector at Fermilab at a center-of-mass-energy of 1.96 TeV. This particle, the ϕ boson, is expected to decay into a bottom-antibottom quark pair and to be produced in association with at least one bottom quark. The data sample consists of events with three jets identified as initiated by bottom quarks and corresponds to 5.4  fb−1 of integrated luminosity. In each event, the invariant mass of the two most energetic jets is studied by looking for deviations from the multijet background, which is modeled using data. No evidence is found for such a particle. Exclusion upper limits ranging from 20 to 2 pb are set for the product of production cross sections times branching fraction for the hypothetical ϕ boson with mass between 100 and 300  GeV/c2. These are the most stringent constraints to date.

Open Access Logo


Verlagsausgabe §
DOI: 10.5445/IR/1000095062
Veröffentlicht am 24.05.2019
Originalveröffentlichung
DOI: 10.1103/PhysRevD.99.052001
Scopus
Zitationen: 1
Web of Science
Zitationen: 1
Coverbild
Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 2470-0010, 2470-0029
KITopen-ID: 1000095062
Erschienen in Physical review / D
Band 99
Heft 5
Seiten Article: 052001
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 12.03.2019
Nachgewiesen in Web of Science
Scopus
arXiv
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page