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A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV

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A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 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.contributor.author	Alemany Fernández, Reyes
dc.contributor.author	Cabrera Urbán, Susana
dc.contributor.author	Cortina Gil, Eduardo
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Lacasta Llácer, Carlos
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Navas Concha, Sergio
dc.contributor.author	Salt Cairols, José
dc.date.accessioned	2014-08-05T11:50:27Z
dc.date.available	2014-08-05T11:50:27Z
dc.date.issued	1997
dc.identifier.citation	DELPHI Collaboration Ferrer Soria, Antonio Higón Rodríguez, Emilio Castillo Giménez, María Victoria Martí García, Salvador . 1997 A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV Zeitschrift für Physik C-Particles and Fields 75 4 581 592
dc.identifier.uri	http://hdl.handle.net/10550/37357
dc.description.abstract	A study of the channel e+e− → μ+μ−γ scISR, where γ\scISR is an initial state radiation photon, is presented using data collected by the DELPHI experiment from 1991 to 1994. The total cross-section at effective annihilation energies (s′−−√) below the Z0 peak is obtained by using the events with relatively hard initial state radiative photon(s) (Eγ > ~1~GeV). The differential cross-section as a function of the muon polar production angle is also determined in order to extract the forward-backward asymmetries for the reaction e+e−→μ+μ− at energies s′−−√ between 20 and 87~GeV. The ratio of the helicity cross-sections σLL+σRRσRL+σLR, where the two subscripts stand for the helicities of the incoming e− and outgoing μ− respectively, is extracted from the differential cross-sections in order to test the Standard Model and to look for new physics near 80 GeV. No deviations from the Standard Model were found.
dc.language.iso	eng
dc.relation.ispartof	Zeitschrift für Physik C-Particles and Fields, 1997, vol. 75, num. 4, p. 581-592
dc.subject	Partícules (Física nuclear)
dc.subject	Col·lisions (Física nuclear)
dc.title	A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV
dc.type	journal article	es_ES
dc.date.updated	2014-08-05T11:50:27Z
dc.identifier.doi	10.1007/s002880050504
dc.identifier.idgrec	006633
dc.rights.accessRights	open access	es_ES