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Search for pair production of heavy objects in 4-jet events at √s = 130-136 GeV

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Search for pair production of heavy objects in 4-jet events at √s = 130-136 GeV

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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Martí García, Salvador
dc.date.accessioned	2014-08-05T11:12:29Z
dc.date.available	2014-08-05T11:12:29Z
dc.date.issued	1996
dc.identifier.citation	DELPHI Collaboration Ferrer Soria, Antonio Higón Rodríguez, Emilio Castillo Giménez, María Victoria Martí García,Salvador.V. 1996 Search for pair production of heavy objects in 4-jet events at √s = 130-136 GeV Zeitschrift für Physik C-Particles and Fields 73 1 9
dc.identifier.uri	http://hdl.handle.net/10550/37354
dc.description.abstract	Results are presented of a search for pair production of heavy objects decaying into four hadronic jets, as expected for example from associated or pair production of MSSM Higgs bosons, hA or H$^+$H$^-$, using a data sample of $5.9\,$pb$^{-1}$ of $e^+ e^-$ collisions at $\sqrt{s}=130$-$136\,{\mathrm {GeV}}$ collected with the DELPHI detector at LEP in November 1995. The data and expectations from standard processes agree after four-jet selections. An analysis based on $b$-tagging finds no hA candidate with high mass. A study optimized to search for H$^+$H$^-$ events with mass in the 40-50$\,{\mathrm{GeV}}/c^2$ range also finds no candidate. Finally a comparison is made with a recent ALEPH analysis which found an excess of four-jet events with high multiplicity and high mass. Such a signal is not observed in the DELPHI data, although a slight excess in the mass region around $105\,{\mathrm{GeV}}/c^2$ is seen.
dc.language.iso	eng
dc.relation.ispartof	Zeitschrift für Physik C-Particles and Fields, 1996, vol. 73, p. 1-9
dc.subject	Partícules (Física nuclear)
dc.subject	Detectors de radiació
dc.title	Search for pair production of heavy objects in 4-jet events at √s = 130-136 GeV
dc.type	journal article	es_ES
dc.date.updated	2014-08-05T11:12:30Z
dc.identifier.doi	10.1007/s002880050294
dc.identifier.idgrec	006611
dc.rights.accessRights	open access	es_ES