Test of non pointlike behavior of Fermions
Abstract
We search in measurements from LEP, TRISTAN, CDF, D0 and UA1 for those phenomena beyond the Standard Model where the fundamental particles can exhibit non pointlike behavior. The total and differential cross sections for the reaction e+e {yields} {gamma}{gamma}({gamma}) measured at centerofmass energies from 55 GeV to 207 GeV are used for a global fit to test the hypothesis of an excited electron and contact interaction induced terms. The best value for the fit exhibits an approximately 5 {sigma} effect for the scale factor of an excited electron of (1/{lambda}{sub {+}}{sup 4}){sub best} = (1.11 {+} 0.20) x 10{sup 10} GeV{sup 4} and the scale of contact interaction of (1/{lambda}4)best = (4.05 {+} 0.73) x 1013 GeV4 but with the opposite to the expected in the modified cross section sign. An empirical scheme is discussed to encompass all fermions and bosons in one framework, if these particles would be geometrically extended objects.
 Authors:
 Swiss Institute of Technology, ETHZuerich, 8093 Zurich (Switzerland)
 National Central University, Jhungli 320, Taiwan (China)
 TH Division, Department of Physics, CERN, CH1211 Geneva 23 (Switzerland)
 (Switzerland)
 University of Science and Technology of China, Hefei Anhui 230029 (China)
 Publication Date:
 OSTI Identifier:
 21056884
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: AIP Conference Proceedings; Journal Volume: 892; Journal Issue: 1; Conference: QCHS7: 7. conference on quark confinement and the hadron spectrum, Ponta Delgada, Acores (Portugal), 27 Sep 2006; Other Information: DOI: 10.1063/1.2714444; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BOSONS; DIFFERENTIAL CROSS SECTIONS; ELECTRONPOSITRON INTERACTIONS; ELECTRONS; FERMILAB COLLIDER DETECTOR; GEV RANGE; LEP STORAGE RINGS; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PHOTONS; STANDARD MODEL; TOTAL CROSS SECTIONS
Citation Formats
Burch, Urs, Rubbia, Andre, Ulbricht, Juergen, Lin, C.H., Sakharov, Alexander S., Swiss Institute of Technology, ETHZuerich, 8093 Zurich, Wu Jian, and Zhao Jiawei. Test of non pointlike behavior of Fermions. United States: N. p., 2007.
Web. doi:10.1063/1.2714444.
Burch, Urs, Rubbia, Andre, Ulbricht, Juergen, Lin, C.H., Sakharov, Alexander S., Swiss Institute of Technology, ETHZuerich, 8093 Zurich, Wu Jian, & Zhao Jiawei. Test of non pointlike behavior of Fermions. United States. doi:10.1063/1.2714444.
Burch, Urs, Rubbia, Andre, Ulbricht, Juergen, Lin, C.H., Sakharov, Alexander S., Swiss Institute of Technology, ETHZuerich, 8093 Zurich, Wu Jian, and Zhao Jiawei. Tue .
"Test of non pointlike behavior of Fermions". United States.
doi:10.1063/1.2714444.
@article{osti_21056884,
title = {Test of non pointlike behavior of Fermions},
author = {Burch, Urs and Rubbia, Andre and Ulbricht, Juergen and Lin, C.H. and Sakharov, Alexander S. and Swiss Institute of Technology, ETHZuerich, 8093 Zurich and Wu Jian and Zhao Jiawei},
abstractNote = {We search in measurements from LEP, TRISTAN, CDF, D0 and UA1 for those phenomena beyond the Standard Model where the fundamental particles can exhibit non pointlike behavior. The total and differential cross sections for the reaction e+e {yields} {gamma}{gamma}({gamma}) measured at centerofmass energies from 55 GeV to 207 GeV are used for a global fit to test the hypothesis of an excited electron and contact interaction induced terms. The best value for the fit exhibits an approximately 5 {sigma} effect for the scale factor of an excited electron of (1/{lambda}{sub {+}}{sup 4}){sub best} = (1.11 {+} 0.20) x 10{sup 10} GeV{sup 4} and the scale of contact interaction of (1/{lambda}4)best = (4.05 {+} 0.73) x 1013 GeV4 but with the opposite to the expected in the modified cross section sign. An empirical scheme is discussed to encompass all fermions and bosons in one framework, if these particles would be geometrically extended objects.},
doi = {10.1063/1.2714444},
journal = {AIP Conference Proceedings},
number = 1,
volume = 892,
place = {United States},
year = {Tue Feb 27 00:00:00 EST 2007},
month = {Tue Feb 27 00:00:00 EST 2007}
}

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