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Insertion of STC into TRT at the Department of Physics, Oxford
Credit: CERN

Richard Nickerson

Associate Professor of Physics

Sub department

  • Particle Physics
Richard.Nickerson@physics.ox.ac.uk
Telephone: 01865 (2)73318,01865 (2)79201
Denys Wilkinson Building, room 625
  • About
  • Publications

Measurement of the ratio σn σp in inelastic muon-nucleon scattering at very low χ and Q2

Physics Letters B 309:3-4 (1993) 477-482

Authors:

MR Adams, S Aïd, PL Anthony, MD Baker, J Bartlett, AA Bhatti, HM Braun, W Busza, TJ Carroll, JM Conrad, G Coutrakon, R Davisson, I Derado, SK Dhawan, W Dougherty, T Dreyer, K Dziunikowska, V Eckardt, U Ecker, M Erdmann, A Eskreys, J Figiel, HJ Gebauer, DF Geesaman, R Gilman, MC Green, J Haas, C Halliwell, J Hanlon, D Hantke, VW Hughes, HE Jackson, DE Jaffe, G Jancso, DM Jansen, S Kaufman, RD Kennedy, T Kirk, HGE Kobrak, S Krzywdzinski, S Kunori, JJ Lord, HJ Lubatti, D McLeod, S Magill, P Malecki, A Manz, H Melanson, DG Michael, W Mohr, HE Montgomery, JG Morfin, RB Nickerson, S O'Day, K Olkiewicz, L Osborne, V Papavassiliou, B Pawlik, FM Pipkin, EJ Ramberg, A Röser, JJ Ryan, A Salvarani, H Schellman, M Schmitt, N Schmitz, KP Schüler, HJ Seyerlein, A Skuja, GA Snow, S Söldner-Rembold, PH Steinberg, HE Stier, P Stopa, RA Swanson, R Talaga, S Tentindo-Repond, HJ Trost, H Venkataramania, M Vidal, M Wilhelm, J Wilkes, R Wilson, W Wittek, SA Wolbers, T Zhao

Abstract:

We present results on the cross-section ratio for inelastic muon scattering on neutrons and protons as a function of Bjorken chi;. The data extend to χ values two orders of magnitude smaller than in previous measurements, down to 2×10-5, for Q2>0.01 GeV2. The ratio is consistent with unity throughout this new range. © 1993.
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An investigation of Bose-Einstein correlations in muon-nucleon interactions at 490 GeV

Physics Letters B 308:3-4 (1993) 418-424

Authors:

MR Adams, S Aïd, PL Anthony, MD Baker, J Bartlett, AA Bhatti, F Botterweck, HM Braun, W Busza, JM Conrad, G Coutrakon, R Davisson, I Derado, SK Dhawan, W Dougherty, T Dreyer, K Dziunikowska, V Eckardt, U Ecker, M Erdmann, A Eskreys, G Fang, J Figiel, HJ Gebauer, DF Geesaman, R Gilman, MC Green, J Haas, C Halliwell, J Hanlon, D Hantke, VW Hughes, HE Jackson, DE Jaffe, G Jancso, DM Jansen, S Kaufman, RD Kennedy, T Kirk, HGE Kobrak, S Krzywdzinski, S Kunori, JJ Lord, HJ Lubatti, D McLeod, S Magill, P Malecki, A Manz, H Melanson, DG Michael, W Mohr, HE Montgomery, JG Morfin, RB Nickerson, S O'Day, K Olkiewicz, L Osborne, V Papavassiliou, B Pawlik, FM Pipkin, EJ Ramberg, A Röser, JJ Ryan, CW Salgado, A Salvarani, H Schellman, M Schmitt, N Schmitz, KP Schüler, HJ Seyerlein, A Skuja, GA Snow, S Söldner-Rembold, PH Steinberg, HE Stier, P Stopa, RA Swanson, R Talaga, S Tentindo-Repond, HJ Trost, H Venkataramania, M Wilhelm, J Wilkes, R Wilson, W Wittek, SA Wolbers, T Zhao

Abstract:

An investigation of Bose-Einstein correlations amongst like-charged pions produced in muon-nucleon interactions at 490 GeV is presented. On top of a broader enhancement, a steep increase in the correlations at small four-momentum differences between the two pions is observed which may be explained by the contribution from decays of resonances (ρ{variant}-mesons). A two-dimensional analysis discriminates between two different parametrizations of the Bose-Einstein effect, strongly favoring the Lorentz-invariant parametrization over a parametrization based on a Gaussian source distribution in space and time. © 1993.
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Perturbative QCD effects observed in 490 GeV deep-inelastic muon scattering

Physical Review D 48:11 (1993) 5057-5066

Authors:

MR Adams, S Aïd, PL Anthony, MD Baker, J Bartlett, AA Bhatti, HM Braun, W Busza, JM Conrad, G Coutrakon, R Davisson, I Derado, SK Dhawan, W Dougherty, T Dreyer, K Dziunikowska, V Eckardt, U Ecker, M Erdmann, A Eskreys, J Figiel, HJ Gebauer, DF Geesaman, R Gilman, MC Green, J Haas, C Halliwell, J Hanlon, D Hantke, VW Hughes, HE Jackson, DE Jaffe, G Jancso, DM Jansen, S Kaufman, RD Kennedy, T Kirk, HGE Kobrak, S Krzywdzinski, S Kunori, JJ Lord, HJ Lubatti, D McLeod, S Magill, P Malecki, A Manz, H Melanson, DG Michael, W Mohr, HE Montgomery, JG Morfin, RB Nickerson, S O'Day, K Olkiewicz, L Osborne, V Papavassiliou, B Pawlik, FM Pipkin, EJ Ramberg, A Röser, JJ Ryan, CW Salgado, A Salvarani, H Schellman, M Schmitt, N Schmitz, KP Schüler, A Skuja, GA Snow, S Söldner-Rembold, PH Steinberg, HE Stier, P Stopa, RA Swanson, R Talaga, S Tentindo-Repond, HJ Trost, H Venkataramania, M Wilhelm, J Wilkes, R Wilson, W Wittek, SA Wolbers, T Zhao

Abstract:

Results on forward charged hadrons in 490 GeV deep-inelastic muon scattering are presented. The transverse momenta, azimuthal asymmetry, and energy flow of events with four or more forward charged hadrons are studied. The range of the invariant hadronic mass squared 300
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First measurements of jet production rates in deep-inelastic lepton-proton scattering.

Phys Rev Lett 69:7 (1992) 1026-1029

Authors:

MR Adams, S Aïd, PL Anthony, MD Baker, J Bartlett, AA Bhatti, HM Braun, W Busza, JM Conrad, G Coutrakon, R Davisson, I Derado, SK Dhawan, W Dougherty, T Dreyer, K Dziunikowska, V Eckardt, U Ecker, M Erdmann, A Eskreys, J Figiel, HJ Gebauer, DF Geesaman, R Gilman, MC Green, J Haas, C Halliwell, J Hanlon, D Hantke, VW Hughes, HE Jackson, DE Jaffe, G Jancso, DM Jansen, S Kaufman, RD Kennedy, HG Kobrak, S Krzywdzinski, S Kunori, JJ Lord, HJ Lubatti, D McLeod, S Magill, P Malecki, A Manz, DG Michael, W Mohr, HE Montgomery, JG Morfin, RB Nickerson, S O'Day, K Olkiewicz, L Osborne, V Papavassiliou, B Pawlik, FM Pipkin, EJ Ramberg, A Röser, J Ryan, CW Salgado, A Salvarani, H Schellman, N Schmitz, KP Schüler
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Shadowing in the muon-xenon inelastic scattering cross section at 490 GeV

Physics Letters B 287:4 (1992) 375-380

Authors:

MR Adams, S Aïd, PL Anthony, MD Baker, J Bartlett, AA Bhatti, HM Braun, W Busza, TJ Carroll, JM Conrad, G Coutrakon, R Davisson, I Derado, SK Dhawan, W Dougherty, T Dreyer, K Dziunikowska, V Eckardt, U Ecker, M Erdmann, A Eskreys, G Fang, J Figiel, HJ Gebauer, DF Geesaman, R Gilman, MC Green, J Haas, C Halliwell, J Hanlon, D Hantke, VW Hughes, HE Jackson, DE Jaffe, G Jancso, DM Jansen, S Kaufman, RD Kennedy, T Kirk, HGE Kobrak, S Krzywdzinski, S Kunori, JJ Lord, HJ Lubatti, D McLeod, S Magill, P Malecki, A Manz, H Melanson, DG Michael, W Mohr, HE Montgomery, JG Morfin, RB Nickerson, S O'Day, K Olkiewicz, L Osborne, V Papavassiliou, B Pawlik, FM Pipkin, EJ Ramberg, A Röser, JJ Ryan, C Salgado, A Salvarani, H Schellman, M Schmitt, N Schmitz, KP Schüler, HJ Seyerlein, A Skuja, GA Snow, S Söldner-Rembold, PH Steinberg, HE Stier, P Stopa, RA Swanson, R Talaga, S Tentindo-Repond, HJ Trost, H Venkataramania, M Vidal, M Wilhelm, J Wilkes, R Wilson, W Wittek, SA Wolbers, T Zhao

Abstract:

Inelastic scattering of 490 GeV μ+ from deuterium and xenon nuclei has been studied for xBj>s.001. The ratio of the xenon/deuterium cross section per nucleon is observed to vary with xBj, with a depletion in the kinematic range 0.001 < xBj < 0.025 which exhibits no significant Q2 dependence. An electromagnetic calorimeter was used to verify the radiative corrections. © 1992.
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