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    An S matrix analysis of the Z resonance (English)

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    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics ; 315 , 3-4 ; 494-502  ; 1993
    • ISSN:
      0370-2693
    • Article (Journal)  /  Electronic Resource

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    AbstractThe S matrix ansatz is a rigorously model independent approach to describe the cross-sections and asymetries in e+e− annihilation. Using the cross-sections and asymetries measured with the L3 detector during the 1990 and 1991 running period, we determine the mass and the width of the Z boson, the contributions of the Z exchange and the γZ interference. Including the polarization of the τ lepton in the analysis, the leptonic helicity amplitudes of the scattering process are determined assuming lepton universality. The results are compared with other model independent ansatzes as realized in ZFITTER. A systematic bias of the Z mass due to the γZ interference term is detected, which leads to an underestimation of the error on mZ for model independent determinations.

    Table of contents – Volume 315, Issue 3-4

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    209
    Towards a relativistic self-consistent nucleon spectral function in the nuclear medium
    Korpa, C.L. / Malfliet, Rudi et al. | 1993
    215
    Antiprotonic molecular ions. New exotic three-body systems
    Korobov, V.I. / Vinitsky, S.I. / Kuperin, Yu.A. et al. | 1993
    220
    Selfconsistent description of a thermal pion gas
    Rapp, R. / Wambach, J. et al. | 1993
    226
    On semi-classical pion production in heavy ion collisions
    Blaizot, Jean-Paul / Diakonov, Dmitri et al. | 1993
    232
    Could there be something rather than nothing?
    Daniel Garretson, W. / Carlson, Eric D. et al. | 1993
    239
    Cosmic wake fields
    Dvali, G.R. / Berezhiani, V.I. / Mahajan, S. et al. | 1993
    245
    Effective potential for the conformal sector of quantum gravity with torsion
    Elizalde, E. / Odintsov, S.D. et al. | 1993
    251
    Breaking of topological symmetry
    Alvarez, M. / Labastida, J.M.F. et al. | 1993
    258
    The braiding of chiral vertex operators with continous spins in 2D gravity
    Gervais, Jean-Loup / Schnittger, Jens et al. | 1993
    258
    The braiding of chiral vertex operators with continuous spins in 2D gravity
    Gervais, J.-L. / Schnittger, J. et al. | 1993
    267
    Symplectic structure of 2D dilaton gravity
    Miković, A. / Navarro, M. et al. | 1993
    277
    Octonions, self-duality and strings
    Ivanova, T.A. et al. | 1993
    283
    Ghosts of ghosts for second class constraints
    Henneaux, Marc et al. | 1993
    287
    Explicit construction of the BRST charge for W4
    Hornfeck, K et al. | 1993
    292
    Finite-dimensional singletons of the quantum anti de Sitter algebra
    Dobrev, V.K. / Moylan, P.J. et al. | 1993
    299
    q-difference realizations of quantum algebras
    Floreanini, Roberto / Vinet, Luc et al. | 1993
    304
    Extensions of the Virasoro algebra and gauged WZW models
    Sevrin, Alexander / Troost, Walter et al. | 1993
    311
    Abelian current algebra and the Virasoro algebra on the lattice
    Faddeev, L. / Volkov, A.Yu. et al. | 1993
    319
    Structure and spontaneous symmetry breaking of a gauge theory based on SU (5|1)
    Batakis, Nikolaos A. / Kehagias, Alexandros A. / Zoupanos, George et al. | 1993
    325
    Supersymmetric unification without proton decay
    Lazarides, G. / Panagiotakopoulos, C. / Shafi, Q. et al. | 1993
    331
    Particle spectrum in supersymmetric models with a gauge singlet
    Ellwanger, Ulrich / de Traubenberg, Michel Rausch / Savoy, Carlos A. et al. | 1993
    338
    T violation induced by supersymmetry in t t and W+W− physics
    Christova, Ekaterina / Fabbrichesi, Marco et al. | 1993
    349
    Discovering supersymmetry with like-sign dileptons
    Michael Barnett, R. / Gunion, John F. / Haber, Howard E. et al. | 1993
    355
    Guaranteed detection of a minimal supersymmetric model Higgs boson at hadron supercolliders
    Dai, J. / Gunion, J.F. / Vega, R. et al. | 1993
    360
    The effect of large squark-mixing on supersymmetric charged Higgs boson decay
    Bartl, A. / Hidaka, K. / Kizukuri, Y. / Kon, T. / Majerotto, W. et al. | 1993
    367
    Supersymmetric QCD correction to hadronic width of the Higgs bosons
    Li, Chong Sheng / Yang, Jin Min et al. | 1993
    372
    Supersymmetric b→sγ with large chargino contributions
    Garisto, R. / Ng, J.N. et al. | 1993
    372
    Supersymmetric b->sgamma with large chargino contributions
    Garisto, R. / Ng, J. N. et al. | 1993
    379
    CP violation in the scattering of heavy bosons and its importance for baryogenesis
    Flanz, M. / Paschos, E.A. / Wu, Y.L. et al. | 1993
    386
    Interplay of Aharonov-Bohm and Berry phases
    Reznik, B. / Aharonov, Y. et al. | 1993
    392
    Heavy fermion production and the symmetry breaking sector of the electroweak interactions
    Lee, Taekoon et al. | 1993
    399
    Detecting an intermediate mass charged Higgs at γγ colliders
    Bowser-Chao, David / Cheung, Kingman / Thomas, Scott et al. | 1993
    399
    Detecting an intermediate mass charged Higgs at gammagamma colliders
    Bowser-Chao, D. / Cheung, K. / Thomas, S. et al. | 1993
    406
    Anatomy of a weak matrix element
    Donoghue, John F. / Golowich, Eugene et al. | 1993
    412
    Ising model universality for two-dimensional lattices
    Janke, Wolfhard / Katoot, Mohammad / Villanova, Ramon et al. | 1993
    417
    Fixed point actions for Wilson fermions
    Wiese, U.-J. et al. | 1993
    425
    Baryon-pion couplings from large-Nc QCD
    Dashen, Roger / Manohar, Aneesh V. et al. | 1993
    431
    Light quark spin-flavor symmetry for baryons containing a heavy quark in large N QCD
    Jenkins, Elizabeth et al. | 1993
    438
    I/N~c corrections to the baryon axial currents in QCD
    Dashen, R. / Manohar, A. V. et al. | 1993
    438
    1 N c corrections to the baryon axial currents in QCD
    Dashen, Roger / Manohar, Aneesh V. et al. | 1993
    441
    Baryon hyperfine mass splittings large N QCD
    Jenkins, Elizabeth et al. | 1993
    441
    Baryon hyperfine mass splittings in large N QCD
    Jenkins, E. et al. | 1993
    447
    Hyperfine mass splittings of baryons containing a heavy quark in large N QCD
    Jenkins, Elizabeth et al. | 1993
    452
    Eigenmoments for multifragmentation
    Giraud, B.G. / Peschanski, R. et al. | 1993
    459
    Quark-pomeron vertex and spin effects at high energies
    Goloskokov, S.V. et al. | 1993
    463
    The pion form factor. Sudakov suppressions and intrinsic transverse momentum
    Jacob, R. / Kroll, P. et al. | 1993
    471
    Constraints on anomalous gauge boson couplings from b→sγ
    Rizzo, Thomas G. et al. | 1993
    471
    Constraints on anomalous gauge boson couplings from b->sgamma
    Rizzo, T. G. et al. | 1993
    477
    Estimate of small angle radiative Bhabha scattering at DAΦNE
    Pancheri, G et al. | 1993
    481
    Observation of events with a large rapidity gap in deep inelastic scattering at HERA
    Derrick, M. / Krakauer, D. / Magill, S. / Musgrave, B. / Repond, J. / Repond, S. / Stanek, R. / Talaga, R.L. / Thron, J. / Arzarello, F. et al. | 1993
    494
    An S matrix analysis of the Z resonance
    Adriani, O. / Aguilar-Benitez, M. / Ahlen, S. / Alcaraz, J. / Aloisio, A. / Alverson, G. / Alviggi, M.G. / Ambrosi, G. / An, Q. / Anderhub, H. et al. | 1993
    503
    Predictions on the total cross section and real part at LHC and SSC
    Augier, C. / Bourotte, J. / Bozzo, M. / Bueno, A. / Cases, R. / Djama, F. / Haguenauer, M. / Kundrát, V. / Lokajíček, M. / Matthiae, G. et al. | 1993
    507
    Erratum
    | 1993
    508
    Cumulative author index to volumes 311–315
    | 1993

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