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  • 2000-2004  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Search and identification of scalar and vector leptoquarks at HERA with polarization (2000)
    Springer
    The European physical journal 14 (2000), S. 165-178 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We analyze the effects of scalar and vector leptoquarks on various observables in electron (positron)–proton deep inelastic scattering. In view of the future program of the HERA collider, with a high luminosity and also with polarization, we present the constraints that can be reached using this facility for several leptoquark scenarios. We address the question of the identification of the nature of a leptoquark when it is discovered. We emphasize the relevance of having polarized lepton and proton beams in order to completely disentangle the various leptoquark models. This study is also relevant in the context of the TESLA $\times$ HERA project.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100520000332
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Constraints on leptophobic gauge bosons with polarized neutrons and protons at RHIC (2002)
    Springer
    The European physical journal 24 (2002), S. 149-157 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We explore the sensitivity and the physical interest of the measurement of parity-violating spin asymmetries in one-jet production in the presence of a new leptophobic neutral gauge boson, $Z^'$ , within polarized hadronic collisions at the BNL RHIC. We focus on polarized neutron collisions which could be achieved in a realistic upgrade of the RHIC-spin program. We show that, in the case of a discovery, a compilation of the information coming from both polarized ${\vec p}{\vec p}$ and ${\vec n}{\vec n} $ collisions should constrain the number of Higgs doublets and the presence or absence of trilinear fermion mass terms in the underlying model of new physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100520200900
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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