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43 results on '"P.Z Quintas"'

1. The b production cross section and angular correlations in p collisions at =

Author

B Abbott, M Abolins, V Abramov, B.S Acharya, D.L Adams, M Adams, V Akimov, G.A Alves, N Amos, E.W Anderson, M.M Baarmand, V.V Babintsev, L Babukhadia, A Baden, B Baldin, S Banerjee, J Bantly, E Barberis, P Baringer, J.F Bartlett, U Bassler, A Bean, A Belyaev, S.B Beri, G Bernardi, I Bertram, V.A Bezzubov, P.C Bhat, V Bhatnagar, M Bhattacharjee, G Blazey, S Blessing, A Boehnlein, N.I Bojko, F Borcherding, A Brandt, R Breedon, G Briskin, R Brock, G Brooijmans, A Bross, D Buchholz, M Buehler, V Buescher, V.S Burtovoi, J.M Butler, F Canelli, W Carvalho, D Casey, Z Casilum, H Castilla-Valdez, D Chakraborty, K.M Chan, S.V Chekulaev, D.K Cho, S Choi, S Chopra, B.C Choudhary, J.H Christenson, M Chung, D Claes, A.R Clark, J Cochran, L Coney, B Connolly, W.E Cooper, D Coppage, D Cullen-Vidal, M.A.C Cummings, D Cutts, O.I Dahl, K Davis, K De, K Del Signore, M Demarteau, D Denisov, S.P Denisov, H.T Diehl, M Diesburg, G Di Loreto, S Doulas, P Draper, Y Ducros, L.V Dudko, S.R Dugad, A Dyshkant, D Edmunds, J Ellison, V.D Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, O.V Eroshin, J Estrada, H Evans, V.N Evdokimov, T Fahland, S Feher, D Fein, T Ferbel, H.E Fisk, Y Fisyak, E Flattum, F Fleuret, M Fortner, K.C Frame, S Fuess, E Gallas, A.N Galyaev, P Gartung, V Gavrilov, R.J Genik II, K Genser, C.E Gerber, Y Gershtein, B Gibbard, R Gilmartin, G Ginther, B Gómez, G Gómez, P.I Goncharov, J.L González Solı́s, H Gordon, L.T Goss, K Gounder, A Goussiou, N Graf, P.D Grannis, J.A Green, H Greenlee, S Grinstein, P Grudberg, S Grünendahl, G Guglielmo, A Gupta, S.N Gurzhiev, G Gutierrez, P Gutierrez, N.J Hadley, H Haggerty, S Hagopian, V Hagopian, K.S Hahn, R.E Hall, P Hanlet, S Hansen, J.M Hauptman, C Hays, C Hebert, D Hedin, A.P Heinson, U Heintz, T Heuring, R Hirosky, J.D Hobbs, B Hoeneisen, J.S Hoftun, A.S Ito, S.A Jerger, R Jesik, T Joffe-Minor, K Johns, M Johnson, A Jonckheere, M Jones, H Jöstlein, A Juste, S Kahn, E Kajfasz, D Karmanov, D Karmgard, R Kehoe, S.K Kim, B Klima, C Klopfenstein, B Knuteson, W Ko, J.M Kohli, A.V Kostritskiy, J Kotcher, A.V Kotwal, A.V Kozelov, E.A Kozlovsky, J Krane, M.R Krishnaswamy, S Krzywdzinski, M Kubantsev, S Kuleshov, Y Kulik, S Kunori, G Landsberg, A Leflat, F Lehner, J Li, Q.Z Li, J.G.R Lima, D Lincoln, S.L Linn, J Linnemann, R Lipton, J.G Lu, A Lucotte, L Lueking, C Lundstedt, A.K.A Maciel, R.J Madaras, V Manankov, S Mani, H.S Mao, T Marshall, M.I Martin, R.D Martin, K.M Mauritz, B May, A.A Mayorov, R McCarthy, J McDonald, T McMahon, H.L Melanson, X.C Meng, M Merkin, K.W Merritt, C Miao, H Miettinen, D Mihalcea, A Mincer, C.S Mishra, N Mokhov, N.K Mondal, H.E Montgomery, M Mostafa, H da Motta, E Nagy, F Nang, M Narain, V.S Narasimham, H.A Neal, J.P Negret, S Negroni, D Norman, L Oesch, V Oguri, B Olivier, N Oshima, P Padley, L.J Pan, A Para, N Parashar, R Partridge, N Parua, M Paterno, A Patwa, B Pawlik, J Perkins, M Peters, R Piegaia, H Piekarz, B.G Pope, E Popkov, H.B Prosper, S Protopopescu, J Qian, P.Z Quintas, R Raja, S Rajagopalan, N.W Reay, S Reucroft, M Rijssenbeek, T Rockwell, M Roco, P Rubinov, R Ruchti, J Rutherfoord, A Santoro, L Sawyer, R.D Schamberger, H Schellman, A Schwartzman, J Sculli, N Sen, E Shabalina, H.C Shankar, R.K Shivpuri, D Shpakov, M Shupe, R.A Sidwell, V Simak, H Singh, J.B Singh, V Sirotenko, P Slattery, E Smith, R.P Smith, R Snihur, G.R Snow, J Snow, S Snyder, J Solomon, X.F Song, V Sorı́n, M Sosebee, N Sotnikova, K Soustruznik, M Souza, N.R Stanton, G Steinbrück, R.W Stephens, M.L Stevenson, F Stichelbaut, D Stoker, V Stolin, D.A Stoyanova, M Strauss, K Streets, M Strovink, L Stutte, A Sznajder, W Taylor, S Tentindo-Repond, T.L.T Thomas, J Thompson, D Toback, T.G Trippe, A.S Turcot, P.M Tuts, P van Gemmeren, V Vaniev, R Van Kooten, N Varelas, A.A Volkov, A.P Vorobiev, H.D Wahl, H Wang, J Warchol, G Watts, M Wayne, H Weerts, A White, J.T White, D Whiteson, J.A Wightman, S Willis, S.J Wimpenny, J.V.D Wirjawan, J Womersley, D.R Wood, R Yamada, P Yamin, T Yasuda, K Yip, S Youssef, J Yu, Z Yu, M Zanabria, H Zheng, Z Zhou, Z.H Zhu, M Zielinski, D Zieminska, A Zieminski, V Zutshi, E.G Zverev, and A Zylberstejn

Subjects
Quantum chromodynamics, Quark, Physics, Nuclear and High Energy Physics, Particle physics, Muon, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Tevatron, 01 natural sciences, 7. Clean energy, Bottom quark, law.invention, Cross section (physics), law, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, 010306 general physics, Collider
Abstract

We present measurements of the b-bbar production cross section and angular correlations using the D0 detector at the Fermilab Tevatron p-pbar Collider operating at sqrt(s) = 1.8 TeV. The b quark production cross section for |y(b)| 6 GeV/c is extracted from single muon and dimuon data samples. The results agree in shape with the next-to-leading order QCD calculation of heavy flavor production but are greater than the central values of these predictions. The angular correlations between b and bbar quarks, measured from the azimuthal opening angle between their decay muons, also agree in shape with the next-to-leading order QCD prediction.

Published
2000

2. Measurement ofαs(Q2)from the Gross–Llewellyn Smith Sum Rule

Author

A. O. Bazarko, A. Romosan, T. Kinnel, M. Vakili, K. S. McFarland, D. Naples, Jan Conrad, Panagiotis Spentzouris, Bruce J. King, M. H. Shaevitz, C. McNulty, F. J. Sciulli, J. H. Kim, R. H. Bernstein, W. G. Seligman, Ji-Young Yu, S. R. Mishra, C. G. Arroyo, E. G. Stern, L. de Barbaro, D. A. Harris, R. A. Johnson, H. S. Budd, H. Schellman, P. de Barbaro, T. A. Bolton, M. J. Lamm, W. H. Smith, W. K. Sakumoto, Unki Yang, W.C. Lefmann, W. Marsh, A. Bodek, and P.Z. Quintas

Subjects
Physics, Particle physics, Scattering, High Energy Physics::Phenomenology, General Physics and Astronomy, Perturbative QCD, Order (ring theory), High Energy Physics::Experiment, Sum rule in quantum mechanics, Neutrino
Abstract

We extract a set of values for the Gross--Llewellyn Smith sum rule at different values of 4-momentum transfer squared ( ${Q}^{2}$), by combining revised CCFR neutrino data with data from other neutrino deep-inelastic scattering experiments for $1l{Q}^{2}l15{\mathrm{GeV}}^{2}{/c}^{2}$. A comparison with the order ${\ensuremath{\alpha}}_{s}^{3}$ theoretical predictions yields a determination of ${\ensuremath{\alpha}}_{s}$ at the scale of the $Z$-boson mass of $0.114{\ifmmode\pm\else\textpm\fi{}}_{0.012}^{0.009}$. This measurement provides a new and useful test of perturbative QCD at low ${Q}^{2}$, because of the low uncertainties in the higher order calculations.

Published
1998

3. Search for the decay b→Xμ+μ−

Author

B. Abbott, M. Abolins, B.S. Acharya, I. Adam, D.L. Adams, M. Adams, S. Ahn, H. Aihara, G.A. Alves, N. Amos, E.W. Anderson, R. Astur, M.M. Baarmand, A. Baden, V. Balamurali, J. Balderston, B. Baldin, S. Banerjee, J. Bantly, E. Barberis, J.F. Bartlett, K. Bazizi, A. Belyaev, S.B. Beri, I. Bertram, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Bhattacharjee, N. Biswas, G. Blazey, S. Blessing, P. Bloom, A. Boehnlein, N.I. Bojko, F. Borcherding, C. Boswell, A. Brandt, R. Brock, A. Bross, D. Buchholz, V.S. Burtovoi, J.M. Butler, W. Carvalho, D. Casey, Z. Casilum, H. Castilla-Valdez, D. Chakraborty, S.-M. Chang, S.V. Chekulaev, L.-P. Chen, W. Chen, S. Choi, S. Chopra, B.C. Choudhary, J.H. Christenson, M. Chung, D. Claes, A.R. Clark, W.G. Cobau, J. Cochran, L. Coney, W.E. Cooper, C. Cretsinger, D. Cullen-Vidal, M.A.C. Cummings, D. Cutts, O.I. Dahl, K. Davis, K. De, K. Del Signore, M. Demarteau, D. Denisov, S.P. Denisov, H.T. Diehl, M. Diesburg, G. Di Loreto, P. Draper, Y. Ducros, L.V. Dudko, S.R. Dugad, D. Edmunds, J. Ellison, V.D. Elvira, R. Engelmann, S. Eno, G. Eppley, P. Ermolov, O.V. Eroshin, V.N. Evdokimov, T. Fahland, M.K. Fatyga, S. Feher, D. Fein, T. Ferbel, G. Finocchiaro, H.E. Fisk, Y. Fisyak, E. Flattum, G.E. Forden, M. Fortner, K.C. Frame, S. Fuess, E. Gallas, A.N. Galyaev, P. Gartung, T.L. Geld, R.J. Genik II, K. Genser, C.E. Gerber, B. Gibbard, S. Glenn, B. Gobbi, A. Goldschmidt, B. Gómez, G. Gómez, P.I. Goncharov, J.L. González Solı́s, H. Gordon, L.T. Goss, K. Gounder, A. Goussiou, N. Graf, P.D. Grannis, D.R. Green, H. Greenlee, G. Grim, S. Grinstein, N. Grossman, P. Grudberg, S. Grünendahl, G. Guglielmo, J.A. Guida, J.M. Guida, A. Gupta, S.N. Gurzhiev, P. Gutierrez, Y.E. Gutnikov, N.J. Hadley, H. Haggerty, S. Hagopian, V. Hagopian, K.S. Hahn, R.E. Hall, P. Hanlet, S. Hansen, J.M. Hauptman, D. Hedin, A.P. Heinson, U. Heintz, R. Hernández-Montoya, T. Heuring, R. Hirosky, J.D. Hobbs, B. Hoeneisen, J.S. Hoftun, F. Hsieh, Ting Hu, Tong Hu, T. Huehn, A.S. Ito, E. James, J. Jaques, S.A. Jerger, R. Jesik, J.Z.-Y. Jiang, T. Joffe-Minor, K. Johns, M. Johnson, A. Jonckheere, M. Jones, H. Jöstlein, S.Y. Jun, C.K. Jung, S. Kahn, G. Kalbfleisch, J.S. Kang, D. Karmanov, D. Karmgard, R. Kehoe, M.L. Kelly, C.L. Kim, S.K. Kim, A. Klatchko, B. Klima, C. Klopfenstein, V.I. Klyukhin, V.I. Kochetkov, J.M. Kohli, D. Koltick, A.V. Kostritskiy, J. Kotcher, A.V. Kotwal, J. Kourlas, A.V. Kozelov, E.A. Kozlovski, J. Krane, M.R. Krishnaswamy, S. Krzywdzinski, S. Kunori, S. Lami, R. Lander, F. Landry, G. Landsberg, B. Lauer, A. Leflat, H. Li, J. Li, Q.Z. Li-Demarteau, J.G.R. Lima, D. Lincoln, S.L. Linn, J. Linnemann, R. Lipton, Y.C. Liu, F. Lobkowicz, S.C. Loken, S. Lökös, L. Lueking, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, R. Madden, L. Magaña-Mendoza, V. Manankov, S. Mani, H.S. Mao, R. Markeloff, T. Marshall, M.I. Martin, K.M. Mauritz, B. May, A.A. Mayorov, R. McCarthy, J. McDonald, T. McKibben, J. McKinley, T. McMahon, H.L. Melanson, M. Merkin, K.W. Merritt, H. Miettinen, A. Mincer, C.S. Mishra, N. Mokhov, N.K. Mondal, H.E. Montgomery, P. Mooney, H. da Motta, C. Murphy, F. Nang, M. Narain, V.S. Narasimham, A. Narayanan, H.A. Neal, J.P. Negret, P. Nemethy, D. Norman, L. Oesch, V. Oguri, E. Oliveira, E. Oltman, N. Oshima, D. Owen, P. Padley, A. Para, Y.M. Park, R. Partridge, N. Parua, M. Paterno, B. Pawlik, J. Perkins, M. Peters, R. Piegaia, H. Piekarz, Y. Pischalnikov, V.M. Podstavkov, B.G. Pope, H.B. Prosper, S. Protopopescu, J. Qian, P.Z. Quintas, R. Raja, S. Rajagopalan, O. Ramirez, L. Rasmussen, S. Reucroft, M. Rijssenbeek, T. Rockwell, M. Roco, N.A. Roe, P. Rubinov, R. Ruchti, J. Rutherfoord, A. Sánchez-Hernández, A. Santoro, L. Sawyer, R.D. Schamberger, H. Schellman, J. Sculli, E. Shabalina, C. Shaffer, H.C. Shankar, R.K. Shivpuri, M. Shupe, H. Singh, J.B. Singh, V. Sirotenko, W. Smart, E. Smith, R.P. Smith, R. Snihur, G.R. Snow, J. Snow, S. Snyder, J. Solomon, P.M. Sood, M. Sosebee, N. Sotnikova, M. Souza, A.L. Spadafora, G. Steinbrück, R.W. Stephens, M.L. Stevenson, D. Stewart, F. Stichelbaut, D.A. Stoianova, D. Stoker, M. Strauss, K. Streets, M. Strovink, A. Sznajder, P. Tamburello, J. Tarazi, M. Tartaglia, T.L.T. Thomas, J. Thompson, T.G. Trippe, P.M. Tuts, N. Varelas, E.W. Varnes, D. Vititoe, A.A. Volkov, A.P. Vorobiev, H.D. Wahl, G. Wang, J. Warchol, G. Watts, M. Wayne, H. Weerts, A. White, J.T. White, J.A. Wightman, S. Willis, S.J. Wimpenny, J.V.D. Wirjawan, J. Womersley, E. Won, D.R. Wood, H. Xu, R. Yamada, P. Yamin, J. Yang, T. Yasuda, P. Yepes, C. Yoshikawa, S. Youssef, J. Yu, Y. Yu, Z.H. Zhu, D. Zieminska, A. Zieminski, E.G. Zverev, and A. Zylberstejn

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Neutral current, Branching fraction, Detector, High Energy Physics::Experiment, Fermilab, Limit (mathematics)
Abstract

We have searched for the flavor-changing neutral current decay b -> s mu+ mu- in p pbar collisions at sqrt(s) = 1.8 TeV with the DO detector at Fermilab. We determine the 90% confidence level limit for the branching fraction to be B(b -> X_s mu+ mu-) < 3.2 x 10^{-4}. We argue that this limit is more stringent than the best published limit on this decay rate.

Published
1998

4. Improved Determination ofαsFrom Neutrino-Nucleon Scattering

Author

D. Naples, Jan Conrad, T. A. Bolton, J. H. Kim, R. H. Bernstein, A. O. Bazarko, W. Marsh, Unki Yang, Panagiotis Spentzouris, Arie Bodek, Ji-Young Yu, M. J. Lamm, S. R. Mishra, L. de Barbaro, C. G. Arroyo, W. H. Smith, H. Schellman, P. de Barbaro, M. Vakili, Bruce J. King, W. K. Sakumoto, P.Z. Quintas, Michael H. Shaevitz, A. Romosan, H. S. Budd, F. J. Sciulli, C. McNulty, D. A. Harris, R. A. Johnson, W.C. Lefmann, W. G. Seligman, K. S. McFarland, E. G. Stern, and T. Kinnel

Subjects
Physics, Quantum chromodynamics, Particle physics, Proton, Scattering, High Energy Physics::Phenomenology, General Physics and Astronomy, Deep inelastic scattering, Lambda, Nuclear physics, High Energy Physics::Experiment, Neutrino, Nucleon, Charged current
Abstract

We present an improved determination of the proton structure functions $F_{2}$ and $xF_{3}$ from the CCFR $\nu $-Fe deep inelastic scattering (DIS) experiment. Comparisons to high-statistics charged-lepton scattering results for $F_{2}$ from the NMC, E665, SLAC, and BCDMS experiments, after correcting for quark-charge and heavy-target effects, indicate good agreement for $x>0.1$ but some discrepancy at lower x. The $Q^{2}$ evolution of the structure functions yields the quantum chromodynamics (QCD) scale parameter $\Lambda_{\bar{MS}}^{NLO,(4)}=337 \pm 28$(exp.) MeV. This corresponds to a value of the strong coupling constant at the scale of mass of the Z-boson of $\alpha _{S}(M_{Z}^{2})=0.119 \pm 0.002 (exp.) \pm 0.004 (theory)$ and is one of the most precise measurements of this quantity.

Published
1997

5. Tests of a calorimetric technique for measuring the energy of cosmic ray muons in the TeV energy range

Author

F. J. Sciulli, P.Z. Quintas, J. Yu, S. Avvakumov, S. Koutsoliotas, P. de Barbaro, W. G. Seligman, A. O. Bazarko, C. G. Arroyo, D. Naples, A. P. Chikkatur, R. Steiner, A. Romosan, J. Conrad, S. R. Mishra, L. de Barbaro, D. A. Harris, R. H. Bernstein, E. G. Stern, P. Auchincloss, P. Nienaber, W. Marsh, W. C. Lefmann, W. B. Lowery, W. H. Smith, T. Kinnel, B. A. Schumm, A. Alton, W. K. Sakumoto, K. S. McFarland, T. Bolton, P. Spentzouris, D. Woods, H. Budd, R. A. Johnson, Nu TeV, A. Vaitaitis, J. Goldman, M. J. Lamm, S. Zeller, J. H. Kim, M. Vakili, L. Bugel, J. E. Brau, H. Schellman, M. J. Oreglia, U. K. Yang, C. McNulty, L. Perera, A. Bodek, M. H. Shaevitz, and R. B. Drucker

Subjects
Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Spectrometer, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Cosmic ray, Nuclear physics, Neutrino detector, Muon collider, MINOS, Scintillation counter, Physics::Accelerator Physics, High Energy Physics::Experiment
Abstract

Previous energy measurements of cosmic ray muons have used magnetic spectrometers to measure the momentum of muons. Measurements using magnets fail for muons in the TeV range because at ultra-high muon energies, the measurement error in the angular deflection of muons by the spectrometer becomes comparable to the total angula deflection. A new method for measuring the energies of TeV muons is investigated, using a sample of cosmic ray muons accumulated parasitically (or synergistically) by the CCFR neutrino detector. The method infers the muon energy from measurements of the energy deposited by the muon in many layers of an iron-scintillator calorimeter. Muons in the TeV energy range lose energy stochastically through e+et - pai production. The distribution of muon energy loss is used t estimate the most likely muon energy. The analysis suggest that this new method for measuring cosmic ray muon energ may be applicable in future detectors such as MINOS an AMANDA.

Published
1997

6. High Statistics Search forνμ(ν¯μ)→νe(ν¯e)Oscillations in the Small Mixing Angle Regime

Author

Ji-Young Yu, C. G. Arroyo, Panagiotis Spentzouris, A. O. Bazarko, P. de Barbaro, Arie Bodek, A. Romosan, H. S. Budd, H. Schellman, M. J. Lamm, C. McNulty, M. Vakili, W. H. Smith, W. Marsh, S. R. Mishra, Jan Conrad, J. H. Kim, R. H. Bernstein, T. Kinnel, Bruce J. King, T. A. Bolton, F. J. Sciulli, R. B. Drucker, L. de Barbaro, K. S. McFarland, D. A. Harris, R. A. Johnson, Unki Yang, W. G. Seligman, P.Z. Quintas, D. Naples, E. G. Stern, Michael H. Shaevitz, W. K. Sakumoto, and W.C. Lefmann

Subjects
Physics, Particle physics, Oscillation, General Physics and Astronomy, Muon neutrino, Neutrino, Neutrino oscillation, Electron neutrino
Abstract

Limits on ${\ensuremath{\nu}}_{\ensuremath{\mu}}({\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}})\ensuremath{\rightarrow}{\ensuremath{\nu}}_{e}({\overline{\ensuremath{\nu}}}_{e})$ oscillations based on a statistical separation of ${\ensuremath{\nu}}_{e}N$ charged current interactions in the CCFR detector at Fermilab are presented. Neutrino energies range from 30 to 600 GeV with a mean of 140 GeV, and ${\ensuremath{\nu}}_{\ensuremath{\mu}}$ flight lengths vary from 0.9 to 1.4 km. The result excludes oscillations in the region with ${sin}^{2}2\ensuremath{\alpha}g1.8\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$ for large $\ensuremath{\Delta}{m}^{2}(g1000{\mathrm{eV}}^{2})$ and $\ensuremath{\Delta}{m}^{2}g1.6{\mathrm{eV}}^{2}$ for ${sin}^{2}2\ensuremath{\alpha}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1$. This result is the most stringent limit to date for $\ensuremath{\Delta}{m}^{2}g25{\mathrm{eV}}^{2}$ and it excludes the high $\ensuremath{\Delta}{m}^{2}$ oscillation region favored by the LSND experiment. The ${\ensuremath{\nu}}_{\ensuremath{\mu}}$-to- ${\ensuremath{\nu}}_{e}$ cross-section ratio was measured as a test of ${\ensuremath{\nu}}_{\ensuremath{\mu}}({\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}})\ensuremath{\leftrightarrow}{\ensuremath{\nu}}_{e}({\overline{\ensuremath{\nu}}}_{e})$ universality to be $1.026\ifmmode\pm\else\textpm\fi{}0.025(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.049(\mathrm{syst})$.

Published
1997

7. Limits onνμ(ν¯μ)→ντ(ν¯τ)andνμ(ν¯μ)→(ν¯e)νeOscillations from a Precision Measurement of Neutrino-Nucleon Neutral Current Interactions

Author

M. J. Oreglia, A. O. Bazarko, P.Z. Quintas, F. J. Sciulli, M Nussbaum, A. Bodek, C. McNulty, P. Nienaber, Bruce Schumm, W.C. Lefmann, K. S. McFarland, D. A. Harris, R. A. Johnson, H. S. Budd, W. G. Seligman, Unki Yang, Jan Conrad, C. G. Arroyo, E. G. Stern, S. R. Mishra, M. J. Lamm, P. de Barbaro, T. A. Bolton, W. H. Smith, R. Steiner, W. K. Sakumoto, T. Kinnel, P. S. Auchincloss, S. Koutsoliotas, W. Marsh, D. Naples, A. Romosan, R. B. Drucker, G. Koizumi, M. H. Shaevitz, L. Perera, Panagiotis Spentzouris, J. H. Kim, R. H. Bernstein, M. Vakili, and Bruce J. King

Subjects
Physics, Nuclear physics, Particle physics, Neutral current, General Physics and Astronomy, Sensitivity (control systems), Neutrino beam, Neutrino, Nucleon, Energy (signal processing)
Abstract

We present limits on ${\ensuremath{\nu}}_{\ensuremath{\mu}}({\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}})\ensuremath{\rightarrow}{\ensuremath{\nu}}_{\ensuremath{\tau}}({\overline{\ensuremath{\nu}}}_{\ensuremath{\tau}})$ and ${\ensuremath{\nu}}_{\ensuremath{\mu}}({\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}})\ensuremath{\rightarrow}{\ensuremath{\nu}}_{e}({\overline{\ensuremath{\nu}}}_{e})$ oscillations based on a study of inclusive $\ensuremath{\nu}N$ interactions performed using the CCFR massive coarse-grained detector in the Fermilab Tevatron Quadrupole Triplet neutrino beam. The sensitivity to oscillations is from the difference in the longitudinal energy deposition pattern of ${\ensuremath{\nu}}_{\ensuremath{\mu}}N$ vs ${\ensuremath{\nu}}_{\ensuremath{\tau}}N$ or ${\ensuremath{\nu}}_{e}N$ charged-current interactions. The ${\ensuremath{\nu}}_{\ensuremath{\mu}}$ energies ranged from 30 to 500 GeV with a mean of 140 GeV. The minimum and maximum ${\ensuremath{\nu}}_{\ensuremath{\mu}}$ flight lengths are 0.9 and 1.4 km, respectively. For ${\ensuremath{\nu}}_{\ensuremath{\mu}}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{\ensuremath{\tau}}$ oscillations, the lowest 90% confidence upper limit in ${sin}^{2}2\ensuremath{\alpha}$ of 2.7 \ifmmode\times\else\texttimes\fi{} ${10}^{\ensuremath{-}3}$ is obtained at $\ensuremath{\Delta}{m}^{2}\ensuremath{\sim}50$ e${\mathrm{V}}^{2}$. This result is the most stringent limit to date for $25l\ensuremath{\Delta}{m}^{2}l90$ e${\mathrm{V}}^{2}$. For ${\ensuremath{\nu}}_{\ensuremath{\mu}}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{e}$ oscillations, the lowest 90% confidence upper limit in ${sin}^{2}2\ensuremath{\alpha}$ of 1.9 \ifmmode\times\else\texttimes\fi{} ${10}^{\ensuremath{-}3}$ is obtained at $\ensuremath{\Delta}{m}^{2}\ensuremath{\sim}350$ e${\mathrm{V}}^{2}$. This result is the most stringent limit to date for $250l\ensuremath{\Delta}{m}^{2}l450$ e${\mathrm{V}}^{2}$, and also excludes at 90% confidence much of the high $\ensuremath{\Delta}{m}^{2}$ region favored by the recent LSND observation.

Published
1995

8. Neutrino results from the fermilab tevatron

Author

D. D. Yovanovitch, W. Marsh, S.A. Rabinowitz, Costas Foudas, S. R. Mishra, M. J. Lamm, H. E. Fisk, W. H. Smith, F. Borcherding, C. G. Arroyo, F. S. Merritt, T. A. Bolton, P. de Barbaro, A. O. Bazarko, P.H. Sandler, E. Oltman, H. Schellman, R. H. Bernstein, R. E. Blair, B.A. Schumm, F. J. Sciulli, K. W. Merritt, K.T. Bachmann, P.Z. Quintas, W. G. Seligman, M. H. Shaevitz, T. Kinnel, W.C. Lefmann, H. S. Budd, M. J. Oreglia, Bruce J. King, A. Bodek, W.C. Leung, and W. K. Sakumoto

Subjects
Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Strange quark, High Energy Physics::Phenomenology, Electroweak interaction, Tevatron, Context (language use), Atomic and Molecular Physics, and Optics, Nuclear physics, High Energy Physics::Experiment, Fermilab, Neutrino, Nucleon
Abstract

Results from the high-energy, high-statistics studies of neutrino nucleon interactions by the CCFR collaboration at the Fermilab Tevatron are described. Using a data sample of over 3.7 million events with energies up to 600 GeV, precision measurements are presented for the weak mixing angle, sin 2 θ w , the structure functions, F 2 ( χ, Q 2 ) and χ F 3 ( χ, Q 2 ), and the strange quark distribution, χs ( χ, Q 2 ). Comparisons of these measurements to those obtained in other processes are made in the context of global electroweak and QCD tests. Prospects for the next generation measurements by the NuTeV collaboration at Fermilab are also presented.

Published
1995

9. Precise measurement of the weak mixing angle in neutrino-nucleon scattering

Author

C. G. Arroyo, M. J. Oreglia, W. G. Seligman, P. de Barbaro, W. K. Sakumoto, E. Oltman, S. R. Mishra, Bruce Schumm, W.C. Lefmann, H. S. Budd, H. E. Fisk, F. J. Sciulli, S.A. Rabinowitz, D. D. Yovanovitch, W. Marsh, C. Foudas, W.C. Leung, M. J. Lamm, K.T. Bachmann, T. Kinnel, W. H. Smith, H. Schellman, P.Z. Quintas, F. S. Merritt, Michael H. Shaevitz, P.H. Sandler, Bruce J. King, T. A. Bolton, F. Borcherding, K. W. Merritt, Arie Bodek, R. H. Bernstein, and A. O. Bazarko

Subjects
Physics, Particle physics, Neutral current, Physics::Instrumentation and Detectors, Scattering, Computer Science::Information Retrieval, High Energy Physics::Phenomenology, FOS: Physical sciences, General Physics and Astronomy, Inelastic scattering, Deep inelastic scattering, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Neutrino detector, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, High Energy Physics::Experiment, Neutrino, Nucleon, Charged current, MathematicsofComputing_DISCRETEMATHEMATICS
Abstract

We report a precise measurement of the weak mixing angle from the ratio of neutral current to charged current inclusive cross-sections in deep-inelastic neutrino-nucleon scattering. The data were gathered at the CCFR neutrino detector in the Fermilab quadrupole-triplet neutrino beam, with neutrino energies up to 600 GeV. Using the on-shell definition, ${\rm sin ^2\theta_W} \equiv 1 - \frac{{\rm M_W} ^2}{{\rm M_Z} ^2}$, we obtain ${\rm sin ^2\theta_W} = 0.2218 \pm 0.0025 ({\rm stat.}) \pm 0.0036 ({\rm exp.\: syst.}) \pm 0.0040 ({\rm model})$., Comment: 10 pages, Nevis Preprint #1498 (Submitted to Phys. Rev. Lett.)

Published
1994

10. A study of the energy dependence of the mean, truncated mean, and most probable energy deposition of high-energy muons in sampling calorimeters

Author

P.Z. Quintas, A. O. Bazarko, W. G. Seligman, P. de Barbaro, P.H. Sandler, M. J. Lamm, D. D. Yovanovitch, F. Borcherding, W. H. Smith, W.C. Leung, H. E. Fisk, P. Auchincloss, M. Pillai, S. R. Mishra, W. K. Sakumoto, M. J. Oreglia, F. S. Merritt, S.A. Rabinowitz, W. Marsh, A. Bodek, B.J. King, C. Foudas, H. Schellman, C. G. Arroyo, E. Oltman, K.T. Bachmann, B.A. Schumm, R.E. Blair, T. Kinnel, W.C. Lefmann, F. J. Sciulli, H. S. Budd, F. Qun, M. H. Shaevitz, K. W. Merritt, R. H. Bernstein, and T. Bolton

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Muon, Large Hadron Collider, Physics::Instrumentation and Detectors, Hadron, Tevatron, Particle detector, Calorimeter, Nuclear physics, High Energy Physics::Experiment, Neutrino, Instrumentation
Abstract

We have extracted the momentum dependence of the mean, the truncated mean and the most probable value of the energy deposited in a segmented, iron-scintillator, hadron calorimeter by high-energy muons. Data were drawn from a sample of momentum-analyzed, high-energy muons produced in charged-current neutrino interactions. The truncated mean energy deposition of high-energy muons traversing 20 calorimeter segments increases by approximately 16% per 100 GeV c increase in muon momentum over the range 25−125 GeV c ; the most probable energy deposition increases by approximately 7%. These results are important for experiments at high-energy colliders (e.g., Tevatron, SSC and LHC) which use the d E d x of high-energy muons to calibrate the response of electromagnetic and hadron calorimeters with tower geometry. The data are in qualitative agreement with GEANT3 (v3.15/308a) simulations.

Published
1994

11. Hadron shower energy and direction measurements using drift chambers

Author

F. J. Sciulli, R. H. Bernstein, C. G. Arroyo, H. Schellman, A. Bodek, H. S. Budd, B.J. King, D. D. Yovanovitch, S. R. Mishra, K.T. Bachmann, K. W. Merritt, T. Kinnel, W. G. Seligman, P. de Barbaro, H. E. Fisk, W. Marsh, E. Oltman, F. S. Merritt, M. J. Lamm, W. K. Sakumoto, W.C. Lefmann, B.A. Schumm, S.A. Rabinowitz, W. H. Smith, C. Foudas, M. J. Oreglia, P.H. Sandler, W.C. Leung, P.Z. Quintas, A. O. Bazarko, T. Bolton, M. H. Shaevitz, and F. Borcherding

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Hadron, Astrophysics::Instrumentation and Methods for Astrophysics, Tevatron, Nuclear physics, Shower, Test beam, Scintillation counter, High Energy Physics::Experiment, Fermilab, Instrumentation, Energy (signal processing)
Abstract

We report energy and angle resolutions for hadron showers produced in the CCFR iron target-calorimeter. The measurements were made using drift chambers instrumented with FADC readout; showers were produced using a momentum-analyzed hadron test beam from the Fermilab Tevatron at energies of 40, 70, 100, 150, and 200 GeV. Shower energy measurements are compared to measurements using scintillation counters in the same target.

Published
1994

12. A measurement of the Gross-Llewellyn Smith sum rule from the CCFR xF3 structure function

Author

B.A. Schumm, F. J. Sciulli, E. Oltman, S. R. Mishra, K. W. Merritt, K.T. Bachmann, R.E. Blair, D. D. Yovanovitch, W. Marsh, M. J. Lamm, H. S. Budd, H. E. Fisk, M. H. Shaevitz, W.C. Leung, P.Z. Quintas, W. H. Smith, F. S. Merritt, P. de Barbaro, B.J. King, R. H. Bernstein, W. G. Seligman, A. Bodek, W.C. Lefmann, W. K. Sakumoto, P.H. Sandler, S.A. Rabinowitz, C. Foudas, C. G. Arroyo, H. Schellman, M. J. Oreglia, and F. Borcherding

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Structure function, Sum rule in quantum mechanics
Abstract

We report a measurement of the Gross-Llewellyn Smith sum rule: ∫( 1 x ) d x xF 3 (x, Q 2 =3 GeV 2 )=2.50±0.018( stat. ) ±0.078( syst. ) .

Published
1993

13. Measurement ofΛQCDfromνμ-Fe nonsinglet structure functions at the Fermilab Tevatron

Author

Bruce Schumm, F. S. Merritt, F. J. Sciulli, D. D. Yovanovitch, W. G. Seligman, W. Marsh, A. Bodek, P.Z. Quintas, K. W. Merritt, W.C. Lefmann, C. G. Arroyo, R. E. Blair, H. S. Budd, M. J. Lamm, K.T. Bachmann, M. J. Oreglia, Bruce J. King, S. R. Mishra, W. H. Smith, R. H. Bernstein, S.A. Rabinowitz, P.H. Sandler, M. H. Shaevitz, C. Foudas, H. Schellman, W.C. Leung, W. K. Sakumoto, E. Oltman, F. Borcherding, P. de Barbaro, and H. E. Fisk

Subjects
Quantum chromodynamics, Physics, Particle physics, High Energy Physics::Phenomenology, Tevatron, General Physics and Astronomy, Perturbative QCD, Elementary particle, Lambda, Deep inelastic scattering, Nuclear physics, Renormalization, High Energy Physics::Experiment, Nuclear Experiment, Minimal subtraction scheme
Abstract

The CCFR Collaboration presents a measurement of scaling violations of the nonsinglet structure function and a comparison to the predictions of perturbative QCD. The value of [Lambda][sub QCD], from the nonsinglet evolution with [ital Q][sup 2][gt]15 GeV[sup 2] and in the modified minimal-subtraction renormalization scheme, is found to be 210[plus minus]28(stat)[plus minus]41(syst) MeV.

Published
1993

14. Tests of perturbative QCD using CCFR data for measurements of nucleon structure functions

Author

W. G. Seligman, D. D. Yovanovitch, K. W. Merritt, F. J. Sciulli, M. J. Lamm, S.A. Rabinowitz, M. J. Oreglia, S. R. Mishra, A. Bodek, F. S. Merritt, C. Foudas, W.C. Lefmann, W.C. Leung, W. H. Smith, W. Marsh, H. S. Budd, K.T. Bachmann, R.E. Blair, P.H. Sandler, H. Schellman, W. K. Sakumoto, B.J. King, C. G. Arroyo, P.Z. Quintas, R. H. Bernstein, E. Oltman, B.A. Schumm, M. H. Shaevitz, H. E. Fisk, F. Borcherding, and P. de Barbaro

Subjects
Quantum chromodynamics, Quark, Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics::Phenomenology, Tevatron, Perturbative QCD, Parton, Atomic and Molecular Physics, and Optics, Nuclear physics, High Energy Physics::Experiment, Sum rule in quantum mechanics, Fermilab, Nucleon
Abstract

We present measurements of nucleon structure functions, F2(ϰ, Q2) and xFs(ϰ, Q2), from the high-statistics, high-energy neutrino-iron scattering experiment at the Fermilab Tevatron. The existing high-statistics xF3 determination by the CDHSW collaboration is compared to our data. The data presented here constitute the first corroboration of the QCD prediction of xF3 evolution at low-ϰ, and yields ΛMS=210±28±41 MeV, and a determination of the GLS sum rule at Q2 = 3 GeV2, SGLS = ∫ϰ1xFsϰ=2.50±0.018 (stat.)±0.078 (syst.). Our value of ΛMS yields α3(Mz) = .111 ± .002 ± .003 ± .003 (scale). Comparison of the neutrino determination of F2(ϰ, Q2) with that obtained from the charged-lepton (e or μ) scattering leads to a precise test of the mean-square charge prediction by the Quark Parton Model. The SLAC-CCFR and BCDMS structure function provide a consistent and precise set of structure functions over a large range of Q2.

Published
1993

15. Precision measurement of sin2θ from vFe scattering at the Tevatron

Author

T. Bolton, K.T. Bachmann, F. S. Merritt, R.E. Blair, T. Kinnel, W.C. Leung, P.Z. Quintas, D. D. Yovanovitch, W. Marsh, F. J. Sciulli, R. H. Bernstein, B.A. Schumm, W.C. Lefmann, H. S. Budd, S. R. Mishra, C. G. Arroyo, W. G. Seligman, P.H. Sandler, H. Schellman, S.A. Rabinowitz, K. W. Merritt, F. Borcherding, C. Foudas, B.J. King, M. J. Oreglia, W. K. Sakumoto, A. Bodek, M. J. Lamm, W. H. Smith, M. H. Shaevitz, P. de Barbaro, H. E. Fisk, E. Oltman, and A. O. Bazarko

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Physics::Instrumentation and Detectors, Scattering, Detector, Tevatron, High Energy Physics::Experiment, Fermilab, Neutrino, Atomic and Molecular Physics, and Optics
Abstract

We present the results of a preliminary determination of sin 2 θ W from a study of vFe scattering in the Lab E detector at Fermilab. The analysis is based on a sample of 5 × 10 5 events with a mean neutrino energy of 166 GeV. Our result, sin 2 θ W = 0.2242 ± 0.0044 expt . ± 0.0047 model , is the highest energy high statistics determination of the weak mixing angle using neutrino data.

Published
1993

16. Neutrino production of Dimuons at the Fermilab tevatron

Author

W.C. Lefmann, F. S. Merritt, M. J. Lamm, B.J. King, S.A. Rabinowitz, W. H. Smith, E. Oltman, H. Schellman, C. Foudas, F. J. Sciulli, K. W. Merritt, P.Z. Quintas, W. Marsh, D. D. Yovanovitch, W.C. Leung, F. Borcherding, K.T. Bachmann, W. K. Sakumoto, Arie Bodek, H. S. Budd, M. J. Oreglia, R.E. Blair, C. G. Arroyo, T. Kinnel, R. H. Bernstein, A. O. Bazarko, B.A. Schumm, W. G. Seligman, S. R. Mishra, P.H. Sandler, M. H. Shaevitz, H. E. Fisk, and P. de Barbaro

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Strange quark, Particle physics, Muon, Cabibbo–Kobayashi–Maskawa matrix, Tevatron, Fermilab, Neutrino, Strangeness, Nucleon, Atomic and Molecular Physics, and Optics
Abstract

Neutrino and antineutrino interactions with two muons in the final state have been studied by the CCFR collaboration in the Fermilab Tevatron neutrino beam. The rate of neutrino- and antineutrino-induced prompt same-sign dimuon production in steel was measured using a sample of 220 μ−μ− events and 15 μ+μ+ events with Pμ > 9 GeV/c, and energies between 30 GeV and 600 GeV. After background subtraction, the prompt rate of same-sign dimuon production is (0.53 ± 0.24) × 10−4 per νμ charged-current event and (0.52 ± 0.33) × 10 −4 per ν μ charged-current event. After demanding Pμ1 ≥ 9 GeV/c, Pμ2 ≥ 5 GeV/c and 30 ≤ Eν ≤ 600 GeV a sample of 5044 ν μ 1062 ν μ induced μ ∓ μ ± events are observed. The data support the slow rescaling model of charm production with a value of mc = 1.31 ± .24 GeV/c2. The CKM matrix element Vcd=.209±0.012 and the nucleon strangeness content, ηe=.064−0.00065+0.00075 are measured with the strange sea x distribution found to be softer than its non-strange counterpart. The first measurements of the Q2 dependence of the strange quark densities, ϰs(ϰ), are also presented.

Published
1993

17. Neutrino production of same-sign dimuons at the Fermilab Tevatron

Author

F. Borcherding, W. G. Seligman, W.C. Lefmann, K.T. Bachmann, R.E. Blair, T. Kinnel, M. J. Lamm, P. de Barbaro, W. H. Smith, B.J. King, P.Z. Quintas, M. H. Shaevitz, P.H. Sandler, W.C. Leung, M. J. Oreglia, W. K. Sakumoto, A. Bodek, H. Schellman, S.A. Rabinowitz, C. Foudas, R. H. Bernstein, W. Marsh, F. J. Sciulli, H. S. Budd, B.A. Schumm, S. R. Mishra, D. D. Yovanovitch, and F. S. Merritt

Subjects
Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Meson, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Tevatron, Nuclear physics, Pair production, Neutrino detector, High Energy Physics::Experiment, Fermilab, Neutrino, Nuclear Experiment, Engineering (miscellaneous), Lepton
Abstract

The rate of neutrino- and antineutrino-induced prompt same-sign dimuon production in steel was measured using a sample of μ−μ− events and 25 μ+μ+ events withPμ>9 GeV/c, produced in 1.5 millionvμ and 0.3 million\(\overline {v_\mu }\) induced charged-current events with energies between 30 GeV and 600 GeV. The data were obtained with the Chicago-Columbia-Fermilab-Rochester (CCFR) neutrino detector in the Fermilab Tevatron Quadrupole Triplet Neutrino Beam during experiments E 744 and E 770. After background subtraction, the prompt rate of same-sign dimuon production is (0.53±0.24)×10−4 pervμ charged-current event and (0.52±0.33)×10−4 per\(\overline {v_\mu }\) charged-current event. The kinematic distributions of the same-sign dimuon events after background subtraction are consistent with those of the non-prompt background due to meson decays in the hadron shower of a charged-current event. Calculations ofc\(\bar c\) gluon bremsstrahlung, based on improved measurements of the charm mass parameter and nucleon structure functions by the CCFR collaboration, yield a prompt rate of (0.09±0.39)×10−4 pervμ charged-current event. In this case,c\(\bar c\) gluon bremsstrahlung is probably not an observable source of prompt same-sign dimuons.

Published
1993

18. Measurement of the strange sea distribution using neutrino charm production

Author

Michael H. Shaevitz, K. W. Merritt, F. J. Sciulli, Bruce J. King, Arie Bodek, S.A. Rabinowitz, W. Marsh, Wesley H Smith, W.C. Leung, P.H. Sandler, D. D. Yovanovitch, C. Foudas, W.C. Lefmann, A. O. Bazarko, M.J. Schumm, F. S. Merritt, H. S. Budd, R. H. Bernstein, W. K. Sakumoto, W. G. Seligman, M. J. Oreglia, S. R. Mishra, C. G. Arroyo, T. A. Bolton, H. Schellman, M. J. Lamm, K.T. Bachmann, T. Kinnel, P. de Barbaro, E. Oltman, H. E. Fisk, F. Borcherding, and P.Z. Quintas

Subjects
Baryon, Physics, Particle physics, Muon, Hadron, Content (measure theory), General Physics and Astronomy, Elementary particle, Production (computer science), Strangeness, Nucleon
Abstract

A high-statistics study by the Columbia-Chicago-Fermilab-Rochester Collaboration of opposite-sign dimuon events induced by neutrino-nucleon scattering at the Fermilab Tevatron is presented. A sample of 5044 ${\ensuremath{\nu}}_{\mathrm{\ensuremath{\mu}}}$ and 1062 \ensuremath{\nu}${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}_{\mathrm{\ensuremath{\mu}}}$ induced ${\mathrm{\ensuremath{\mu}}}^{\ensuremath{\mp}}$${\mathrm{\ensuremath{\mu}}}^{\ifmmode\pm\else\textpm\fi{}}$ events with ${\mathit{P}}_{\mathrm{\ensuremath{\mu}}1}$\ensuremath{\ge}9 GeV/c, ${\mathit{P}}_{\mathrm{\ensuremath{\mu}}2}$\ensuremath{\ge}5 GeV/c, 30\ensuremath{\le}${\mathit{E}}_{\ensuremath{\nu}}$\ensuremath{\le}600 GeV, and 〈${\mathit{Q}}^{2}$〉=22.2 ${\mathrm{GeV}}^{2}$/${\mathit{c}}^{2}$ is observed. The data support the slow-rescaling model of charm production with a value of ${\mathit{m}}_{\mathit{c}}$=1.31\ifmmode\pm\else\textpm\fi{}0.24 ${\mathrm{GeV}}^{2}$/${\mathit{c}}^{2}$. The first measurement of the ${\mathit{Q}}^{2}$ dependence of the nucleon strange quark distribution xs(x) is presented. The data yield the Cabibbo-Kobayashi-Maskawa matrix element \ensuremath{\Vert}${\mathit{V}}_{\mathit{c}\mathit{d}}$\ensuremath{\Vert}=0.209\ifmmode\pm\else\textpm\fi{}0.012 and the nucleon fractional strangeness content ${\mathrm{\ensuremath{\eta}}}_{\mathit{s}}$=0.${064}_{\mathrm{\ensuremath{-}}0.007}^{+0.008}$.

Published
1993

19. Search for right handed coupling in ν-Nscattering

Author

F. J. Sciulli, H. E. Fisk, H. Schellman, W. K. Sakumoto, S. R. Mishra, A. Bodek, W.C. Lefmann, P. de Barbaro, S.A. Rabinowitz, W. Marsh, C. G. Arroyo, H. S. Budd, M. J. Lamm, C. Foudas, E. Oltman, M. J. Oreglia, Bruce Schumm, M. H. Shaevitz, P.H. Sandler, Bruce J. King, K.T. Bachmann, W.C. Leung, P.Z. Quintas, W. G. Seligman, F. Borcherding, W. H. Smith, R. E. Blair, F. S. Merritt, R. H. Bernstein, K. W. Merritt, and D. D. Yovanovitch

Subjects
Scattering cross-section, Physics, Particle physics, Right handed, Scattering, Symmetric model, General Physics and Astronomy, Weak interaction, Weak current, Coupling (probability), Boson
Abstract

The relative absence of \ensuremath{\nu}${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}_{\mathrm{\ensuremath{\mu}}}$-induced charged current events with respect to ${\ensuremath{\nu}}_{\mathrm{\ensuremath{\mu}}}$-induced events at large (g0.45) and large y (g0.70) enables us to limit the right handed coupling of the weak current. Our data restrict \ensuremath{\Vert}\ensuremath{\eta}${\mathrm{\ensuremath{\Vert}}}^{2}$=\ensuremath{\Vert}${\mathit{g}}_{\mathit{R}}$/${\mathit{g}}_{\mathit{L}}$${\mathrm{\ensuremath{\Vert}}}^{2}$0.0 015 with 90% C.L. Within the framework of left-right symmetric models, this measurement imposes a limit upon the mixing angle of the left and right handed bosons. Unlike the limits imposed by the \ensuremath{\mu}-decay and nuclear \ensuremath{\beta}-decay experiments, our limit is valid irrespective of the mass of the right handed neutrino.

Published
1992

20. Comparison of hadronic shower punchthrough and TeV muon dE/dx with calculation

Author

F. S. Merritt, H. E. Fisk, F. Borcherding, E. Oltman, M. J. Lamm, S.A. Rabinowitz, D. D. Yovanovitch, W. G. Seligman, W. H. Smith, B.A. Schumm, C. Foudas, S. R. Mishra, A. Bodek, K.T. Bachmann, B.J. Kim, R.E. Blair, P. de Barbaro, P.Z. Quintas, W.C. Lefmann, B.J. King, C. G. Arroyo, P.H. Sandler, H. Schellman, W. K. Sakumoto, W.C. Leung, P. A. Rapidis, K. W. Merritt, W. Marsh, F. J. Sciulli, R. H. Bernstein, H. S. Budd, M. H. Shaevitz, and M. J. Oreglia

Subjects
Physics, Nuclear and High Energy Physics, High energy, Particle physics, Muon, Calorimeter (particle physics), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Hadron, Detector, Monte Carlo method, Atomic and Molecular Physics, and Optics, Nuclear physics, Shower, Neutrino detector, High Energy Physics::Experiment
Abstract

We have measured the longitudinal particle punchthrough probability from shower cascades produced by hadrons incident on the iron-scintillator calorimeter of the CCFR neutrino detector and have compared them to a Monte Carlo simulation. Measurements of the dE/dx energy loss iron of high energy cosmic ray muons (up to 1 TeV) incident on the same detector are presented and are compared against calculations.

Published
1991

21. Measuring muon momenta with the CCFR neutrino detector

Author

M. J. Lamm, S.R. Mishra, W.C. Lefmann, K. W. Merritt, Arie Bodek, Wesley H Smith, R. H. Bernstein, F. S. Merritt, Mark Oreglia, William L. Marsh, P.H. Sandler, D. D. Yovanovitch, P.Z. Quintas, F. J. Sciulli, S.A. Rabinowitz, H. Schellman, Michael H. Shaevitz, C. G. Arroyo, W.C. Leung, C. Foudas, B.A. Schumm, W. K. Sakumoto, B.J. King, F.O. Borcherding, K.T. Bachmann, R.E. Blair, P. de Barbaro, H. E. Fisk, H. S. Budd, W.G. Seligman, and E. Oltman

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, Spectrometer, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Nuclear physics, Neutrino detector, Muon spectrometer, Muon collider, Calibration, Physics::Accelerator Physics, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Instrumentation
Abstract

We report on muon spectrometry at the CCFR neutrino detector. The muon spectrometer and momentum-fitting analysis code are described, and results presented from the calibration of the spectrometer with test beams of momentum-analyzed muons.

Published
1991

22. Nucleon structure functions from νμ-Fe scattering at the Tevatron

Author

C. G. Arroyo, P. de Barbaro, F. Borcherding, S. R. Mishra, W. Marsh, P.H. Sandler, H. E. Fisk, M. J. Lamm, W.C. Leung, M. J. Oreglia, K.T. Bachmann, B.A. Schumm, W. H. Smith, E. Oltman, F. J. Sciulli, H. Schellman, R.E. Blair, D. D. Yovanovitch, F. S. Merritt, W. K. Sakumoto, S.A. Rabinowitz, C. Foudas, H. S. Budd, B.J. King, M. H. Shaevitz, K. W. Merritt, R. H. Bernstein, W. G. Seligman, A. Bodek, W.C. Lefmann, and P.Z. Quintas

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Scattering, Structure function, Tevatron, Nucleon, Atomic and Molecular Physics, and Optics, Charged current
Abstract

Preliminary measurements of structure functions have been made from a sample of 1,281,000 ν μ and 270,000 ν μ charged current events with 30 GeV σ( ν μ )/σ(ν μ ) = .511 ± .002 ( stat ) ± .005 ( syst ) , and an analysis of the Q2 evolution of xF3.

Published
1991

23. Inverse muon decay, ν+e→μ−+νe, at the Fermilab Tevatron

Author

D. D. Yovanovitch, F. S. Merritt, B.J. King, F. J. Sciulli, M. H. Shaevitz, W. Marsh, W.C. Lefmann, P. de Barbaro, S.A. Rabinowitz, M. J. Oreglia, C. Foudas, K. W. Merritt, H. E. Fisk, K.T. Bachmann, R.E. Blair, H. Schellman, H. S. Budd, M. J. Lamm, W. K. Sakumoto, P.Z. Quintas, A. Bodek, B. G. Seligman, B.A. Schumm, W.C. Leung, R. H. Bernstein, S. R. Mishra, W. H. Smith, F. Borcherding, and E. Oltman

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Sterile neutrino, Muon, Tevatron, High Energy Physics::Experiment, Fermilab, Neutrino, Neutrino oscillation, Charged current, Lepton
Abstract

We report an improved measurement of the inverse muon decay process, νμ+e→μ−+νe, at the Fermilab Tevatron. The rate of this reaction with respect to the νμ-N charged current interaction is measured to be (0.1245±0.0057(stat.)±0.0031 (sys.)) × 10−2. The measurement confirms the standard model predictions for the Lorentz structure of the weak current, the helicity of the neutrino, and the energy dependence of the cross section.

Published
1990

24. Measurement of the inclusive charged-current cross section for neutrino and antineutrino scattering on isoscalar nucleons

Author

C. Haber, P. Reutens, P. A. Rapidis, W. Marsh, S. R. Mishra, M. Ruiz, H. E. Fisk, M. H. Shaevitz, P. S. Auchincloss, F. Borcherding, D. Levinthal, P.Z. Quintas, F. J. Sciulli, H. B. White, W.C. Leung, I. E. Stockdale, R.E. Blair, R. Coleman, M. J. Oreglia, F. S. Merritt, W. H. Smith, E. Oltman, D. D. Yovanovitch, N. Giokaris, A. Bodek, and Karol Lang

Subjects
Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Isoscalar, Nuclear physics, Antimatter, High Energy Physics::Experiment, Fermilab, Neutrino, Nuclear Experiment, Nucleon, Engineering (miscellaneous), Charged current, Lepton
Abstract

This paper reports on measurements of the total cross section for the inclusive reaction vμ+N, as a function of incident energy. Neutrinos and antineutrinos with energy in the range 30–300 GeV were produced in the 1982 Fermilab narrow-band neutrino beamline. A total of 35 000 neutrino and 7000 antineutrino interactions were recorded in the CCFR detector located in LabE. The incident neutrino flux was determined by methods similar to those used in previous experiments. The rate of increase with energy of the total cross section (σ/Ev) in the range 30 to 75 GeV was determined to be 0.659±0.005(stat)±0.039(syst)×10−38 cm2/GeV and 0.307±0.008(stat)±0.020(syst)×10−38 cm2/GeV for incident neutrinos and antineutrinos, respectively. The 5.9% systematic errors are due primarily to uncertainties in the flux intensity measurement. The energy dependence of the cross section in the regionEν=100–300 GeV was found to be linear, as determined by relative normalization techniques. A weighted average of our previous and present measurement for the total ν-N cross section yields: $$\begin{gathered} \sigma (vN) = 0.666 \pm 0.020(statistical \hfill \\ + systematic)E_v 10^{ - 38} cm^2 ; \hfill \\ \sigma (\bar vN) = 0.324 \pm 0.014(statistical \hfill \\ + systematic)E_v 10^{ - 38} cm^2 ; \hfill \\ \end{gathered} $$ .

Published
1990

25. Calibration of the CCFR target calorimeter

Author

H. Schelman, S.A. Rabinowitz, D. D. Yovanovitch, R.E. Blaie, C. Foudas, Wesley H Smith, K.T. Bachmann, W.C. Lefmann, Mark Oreglia, W.G. Seligman, W. K. Sakumoto, B.J. King, P.H. Sandler, F. J. Sciulli, M. J. Lamm, W.C. Leung, P. A. Rapidis, Frank Merritt, B.A. Schumm, P.Z. Quintas, William L. Marsh, H. S. Budd, B.J. Kim, M.H. Saevitz, H. E. Fisk, E. Oltman, P. de Barbaro, F.O. Borcherding, R. H. Bernstein, K. W. Merritt, Arie Bodek, and S.R. Mishra

Subjects
Physics, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, Muon, Calorimeter (particle physics), Physics::Instrumentation and Detectors, Hadron, Electron, Ionizing radiation, Nuclear physics, Calibration, High Energy Physics::Experiment, Nuclear Experiment, Instrumentation, Energy (signal processing)
Abstract

The techniques used to calibrate and monitor the energy response of the CCFR (Lab E) iron-scintillator target calorimeter for a precision measurement of shower energies are described. Measurements on the energy response of the calorimeter to hadrons, electrons, and minimum ionizing muons (from range outs) are presented. The calorimeter's energy response and resolution for hadrons and electrons are obtained using a test beam with energies between 15 and 450 GeV.

Published
1990

26. Inverse muon decay and neutrino dimuon production at the Tevatron

Author

D.D. Yavanovitch, P.Z. Quintas, W.C. Lefmann, M. H. Shaevitz, F. S. Merritt, E. Oltman, R.E. Blair, W.K. Sakamoto, K. T. Bachman, W. Marsh, W.C. Leung, F. J. Sciulli, M. J. Oreglia, B.A. Schumm, R.F. Bernstein, H. E. Fisk, F. Borcherding, M. J. Lamm, S. R. Mishra, H. S. Budd, J. Schellman, W. H. Smith, C. Foudas, and K. W. Merritt

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle decay, Particle physics, Muon, Pair production, Tevatron, Fermilab, Neutrino, Nucleon, Atomic and Molecular Physics, and Optics, Lepton
Abstract

We report on two recent measurements by the CCFR collaboration using the Fermilab Tevatron quad-triplet neutrino beam with neutrino energies up to 600 GeV. In a sample of 666,000 neutrino and 132,000 antineutrino events, 1151 inverse μ-decay events νμe− → μ−νe, were isolated corresponding to a rate with respect to ν μ-N charged current interactions of (0.125±.009 (stat.) ± .003 (sys.)) × 10−2. The data also contain 1522 νμ and 275 ν μ induced opposite sign dimuon events which are due predominantly to charm production at the hadronic vertex. Using this sample, we have measured the strange sea content of the nucleon, ηs = ∫ dχ(2χs(χ))/ ∫ dχ(χu(χ) + χd(χ)) = .057−0.008+0.012, the Cabbibo-KObayashi-Maskawa matrix element, |Vcd| = 0.220−.015+.018, and the slow-rescaling model charm mass parameter, mc = 1.3−0.5+0.6GeV. 0868

Published
1990

27. Nuclear structure functions in the large-xlarge-Q2kinematic region in neutrino deep inelastic scattering

Author

T. A. Bolton, F. J. Sciulli, M. H. Shaevitz, S. R. Mishra, P. de Barbaro, T. Kinnel, G. Koizumi, L. Perera, C. McNulty, W. G. Seligman, C. G. Arroyo, D. A. Harris, Bruce Schumm, R. A. Johnson, H. S. Budd, K. S. McFarland, L. de Barbaro, W.C. Lefmann, A. Romosan, W. Marsh, E. G. Stern, Ji-Young Yu, Jan Conrad, W. K. Sakumoto, M. J. Oreglia, P.Z. Quintas, M. Vakili, A. Bodek, J. H. Kim, R. H. Bernstein, P. Nienaber, A. O. Bazarko, Unki Yang, Bruce J. King, M. J. Lamm, W. H. Smith, Panagiotis Spentzouris, R. Steiner, P. S. Auchincloss, S. Koutsoliotas, and D. Naples

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Nuclear structure, Kinematics, Deep inelastic scattering, Momentum, Nuclear physics, High Energy Physics::Experiment, Fermilab, Neutrino, Nuclear Experiment, Fermi gas, Nucleon
Abstract

Data from the CCFR E770 neutrino deep inelastic scattering experiment at Fermilab contain events with a large Bjorken x (x>0.7) and high momentum transfer [Q{sup 2}>50 (GeV/c){sup 2}]. A comparison of the data with a model based on no nuclear effects at large x shows a significant excess of events in the data. The addition of Fermi gas motion of the nucleons in the nucleus to the model does not explain the excess. Adding a higher momentum tail due to the formation of ''quasi-deuterons'' makes some improvement. An exponentially falling F{sub 2}{proportional_to}e{sup -s(x-x{sub 0})} at large x, predicted by ''multi-quark clusters'' and ''few-nucleon correlations,'' can describe the data. A value of s=8.3{+-}0.7(stat){+-}0.7(syst) yields the best agreement with the data. (c) 2000 The American Physical Society.

Published
2000

28. High statistics search forve(ve)→vτ(vτ)oscillations

Author

W. K. Sakumoto, K. S. McFarland, D. Naples, W. G. Seligman, F. J. Sciulli, M. H. Shaevitz, T. Kinnel, E. G. Stern, S. R. Mishra, D. A. Harris, R. A. Johnson, H. S. Budd, P. de Barbaro, Unki Yang, R. B. Drucker, C. McNulty, W. Marsh, M. J. Lamm, H. Schellman, L. de Barbaro, J. H. Kim, R. H. Bernstein, W. H. Smith, A. O. Bazarko, Ji-Young Yu, P.Z. Quintas, Panagiotis Spentzouris, A. Romosan, A. Bodek, W.C. Lefmann, C. G. Arroyo, Jan Conrad, T. A. Bolton, M. Vakili, and Bruce J. King

Subjects
Physics, Nuclear and High Energy Physics, Quantum mechanics
Published
1998

29. Measurement of W and Z production cross-sections in p{bar p} collisions at {radical}s = 1.8 TeV

Author

P.Z. Quintas

Subjects
Systematic error, Physics, Crystallography, Branching fraction, Center (category theory), Tevatron, High Energy Physics::Experiment, Production (computer science), Atomic physics, Standard Model, Lepton, Bar (unit)
Abstract

The cross sections for W and Z production in p{bar p} collisions at {radical}s = 1.8 TeV are measured using the D0 detector at the Fermilab Tevatron collider. The detected final states are W {yields} ev{sub e}, Z {yields} e{sup +}e{sup {minus}}, W {yields} {mu}v{sub {mu}}, and Z {yields} {mu}{sup +}{mu}{sup {minus}}. In the ratio of these measurements, many common sources of systematic error cancel and we measure R = {sigma},(p{bar p} {yields} W) {center_dot} Br(W {yields} lv)/ {sigma},(p{bar p} {yields} Z) {center_dot} Br(Z {yields} l{sup +}l{sup {minus}}). Assuming standard model couplings, this result is used to determine the width of the W bosom and to set a limit on the decay W{sup +} {yields} t{bar b}.

Published
1994

30. Measurement of TeV muon energy loss in iron

Author

S.A. Rabinowitz, W.C. Lefmann, W.C. Leung, C. Foudas, E. Oltman, F. Borcherding, Bruce Schumm, D. D. Yovanovitch, Mark Oreglia, P. de Barbaro, W. Marsh, P.Z. Quintas, F. J. Sciulli, H. E. Fisk, A. Bodek, W. K. Sakumoto, F. S. Merritt, M. J. Lamm, H. Schellman, W. H. Smith, H. S. Budd, K.T. Bachmann, P.H. Sandler, W. G. Seligman, B.J. Kim, M. H. Shaevitz, P. A. Rapidis, Bruce J. King, R. E. Blair, S. R. Mishra, K. W. Merritt, and R. H. Bernstein

Subjects
Physics, Particle physics, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Bremsstrahlung, Cosmic ray, Superconducting Super Collider, Nuclear physics, Neutrino detector, Physics::Accelerator Physics, High Energy Physics::Experiment, Fermilab, Energy (signal processing), Lepton
Abstract

We measure the energy loss of high-energy muons (up to 1 TeV) from cosmic-ray muons incident on the iron-scintillator calorimeter of the Chicago-Columbia-Fermilab-Rochester Collaboration (Lab E) neutrino detector at Fermilab. Measurements of the differential energy loss spectra in Fe and the average $\frac{\mathrm{dE}}{\mathrm{dx}}$ energy loss in Fe are presented as functions of muon energy and are compared against calculations. There is reasonable agreement between the measurements and calculations except in the region of small energy losses (under a few GeV) for 1-TeV muons, where the measurement is about 30% lower than the calculation. This level of agreement with theory implies that reliable simulations of the performance of muon detectors for future TeV colliders can be done.

Published
1992

31. A study of double vertex events in the neutrino-nucleon interactions

Author

D. D. Yovanovitch, F. S. Merritt, F. J. Sciulli, W. G. Seligman, M. J. Oreglia, H. S. Budd, P.H. Sandler, P.Z. Quintas, S. R. Mishra, F. Borcherding, W. C. Leung, M. H. Shaevitz, R. H. Bernstein, R. E. Blair, B.A. Schumm, W. Marsh, W. K. Sakumoto, S.A. Rabinowitz, C. Foudas, P. de Barbaro, H. Schellman, K.T. Bachmann, M. J. Lamm, W. H. Smith, W.C. Lefmann, and A. Bodek

Subjects
Physics, Particle physics, Muon, Statistics::Applications, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Elementary particle, Particle identification, Nuclear physics, Particle decay, Neutrino detector, High Energy Physics::Experiment, Neutrino, Nucleon, Lepton
Abstract

We searched for candidates of neutral heavy lepton (NHL) production in a sample of 2.6 million neutrino interactions in the Columbia‐Chicago‐Fermilab‐Rochester (CCFR) neutrino detector. No evidence for a NHL was found in the charged current density channel, NHL→μ−+X. A NHL with mass between 0.5 and 3.0 GeV/c2 has been excluded (at 90% CL) for couplings to muons between 1×10−2 and 1±10−4 of the Fermi strength, depending on the NHL mass. The results of a search for a neutral heavy particle decaying via the neutral channel are also discussed.

Published
1992

32. Precision measurement of sin2 θw from νFe scattering at the tevatron

Author

W.C. Leung, P.H. Sandler, A. O. Bazarko, K. W. Merritt, Costas Foudas, Bruce Schumm, M. H. Shaevitz, F. J. Sciulli, H. Schellman, H. E. Fisk, W.C. Lefmann, Bruce J. King, W. K. Sakumoto, M. J. Lamm, W. H. Smith, E. Oltman, R. E. Blair, D. D. Yovanovitch, T. A. Bolton, H. S. Budd, S. R. Mishra, C. G. Arroyo, F. S. Merritt, P.Z. Quintas, F. Borcherding, A. Bodek, R. H. Bernstein, P. de Barbaro, S.A. Rabinowitz, K.T. Bachmann, T. Kinnel, M. J. Oreglia, W. G. Seligman, and W. Marsh

Subjects
Quantum chromodynamics, Nuclear physics, Physics, Particle physics, Physics::Instrumentation and Detectors, Scattering, Detector, Tevatron, High Energy Physics::Experiment, Weinberg angle, Fermilab, Neutrino, Standard Model
Abstract

We present the results of a preliminary determination of sin2 θW from a study of νFe scattering in the Lab E detector at Fermilab. The analysis is based on a sample of 5×105 events with a mean neutrino energy of 166 GeV. Our result, sin2 θW=0.2242±0.0044expt.±0.0047model, is the highest energy high statistics determination of the weak mixing angle using neutrino data.

Published
1992

33. Neutrino production of dimuons at the Fermilab Tevatron

Author

S. R. Mishra, D. D. Yovanovitch, H. S. Budd, H. Schellman, C. G. Arroyo, K.T. Bachmann, A. O. Bazarko, M. J. Lamm, T. Kinnel, T. A. Bolton, H. E. Fisk, P.Z. Quintas, K. W. Merritt, W. H. Smith, W. G. Seligman, F. S. Merritt, Bruce J. King, R. E. Blair, M. J. Oreglia, W.C. Leung, E. Oltman, Bruce Schumm, P. de Barbaro, Arie Bodek, P.H. Sandler, R. H. Bernstein, F. Borcherding, W. Marsh, M. H. Shaevitz, W. K. Sakamuto, C. Foudis, S.A. Rabinowitz, W.C. Lefmann, and F. J. Sciulli

Subjects
Nuclear physics, Physics, Particle physics, Strange quark, Muon, Pair production, Tevatron, Fermilab, Neutrino, Strangeness, Lepton
Abstract

Neutrino and antineutrino interactions with two muons in the final state have been studied by the CCFR collaboration in the Fermilab Tevatron neutrino beam. The rate of neutrino‐ and antineutrino‐induced prompt same‐sign dimuon production in steel was measured using a sample of 220 μ−μ− events and 15 μ+μ+ events with Pμ≳9 GeV/c, and energies between 30 GeV and 600 GeV. In addition, a sample of 5044 νμ and 1062 νμ induced opposite‐sign (μ∓μ±) events was also observed with Pμ1≥9 GeV/c, Pμ2≥5 GeV/c, and 30≤Eθ≤600 GeV. The opposite‐sign data support the slow rescaling model of charm production with a value of mc=1.31±0.24 GeV/c2. The CKM matrix element Vcd=0.209±0.012 and the nucleon strangeness content, ηs=0.064+0.0075−0.0065 are also extracted from the data. The first measurements of the Q2 dependence of the strange quark densities, xs(x), are also presented.

Published
1992

34. Nucleon structure functions from νμ-Fe scattering at the Tevatron {au}

Author

H. Schellman, M. H. Shaevitz, M. J. Oreglia, H. E. Fisk, W. G. Seligman, M. J. Lamm, D. D. Yovanovitch, W. H. Smith, W.C. Leung, E. Oltman, P. de Barbaro, F. J. Sciulli, R. E. Blair, F. S. Merritt, W. K. Sakumoto, S. R. Mishra, W. Marsh, Bruce J. King, H. S. Budd, A. Bodek, S.A. Rabinowitz, K.T. Bachmann, W.C. Lefmann, Bruce Schumm, C. Foudas, M. J. Borcherding, P.Z. Quintas, R. H. Bernstein, and K. W. Merritt

Subjects
Quark, Physics, Particle physics, Scattering, Structure function, Tevatron, Nuclear physics, Baryon, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Sum rule in quantum mechanics, Neutrino, Nuclear Experiment, Nucleon
Abstract

We present preliminary results for nucleon structure functions measured in high energy neutrino interactions. Included are new results for the Gross‐Llewellyn Smith Sum Rule, ∫ 1/x xF3dx=2.66±0.03(stat)±0.08(syst), the ratio of cross‐sections, σν/σν=0.511±0.002(stat)±0.005(syst), and an analysis of the Q2 evolution of xF3.

Published
1992

35. Neutrino tridents and W-Z interference

Author

S. R. Mishra, W. K. Sakumoto, M. J. Lamm, P.Z. Quintas, W. H. Smith, M. J. Oreglia, F. S. Merritt, W. Marsh, F. J. Sciulli, W.C. Lefmann, Bruce Schumm, S.A. Rabinowitz, C. Foudas, H. E. Fisk, E. Oltman, K. W. Merritt, C. G. Arroyo, K.T. Bachmann, R. E. Blair, P.H. Sandler, D. D. Yovanovitch, A. Bodek, B. G. Seligman, H. S. Budd, P. de Barbaro, Bruce J. King, H. Schellman, M. H. Shaevitz, R. H. Bernstein, F. Borcherding, and W.C. Leung

Subjects
Physics, Particle physics, Muon, Field (physics), Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Tevatron, General Physics and Astronomy, Interference (wave propagation), Neutrino scattering, Nuclear physics, Coulomb, High Energy Physics::Experiment, Fermilab, Neutrino
Abstract

We present a measurement of neutrino tridents, muon pairs induced by neutrino scattering in the Coulomb field of a target nucleus, in the Columbia-Chicago-Fermilab-Rochester neutrino experiment at the Fermilab Tevatron. The observed number of tridents after geometric and kinematic corrections, 37.0±12.4, supports the standard-model prediction of 45.3±2.3 events. This is the first demonstration of the W-Z destructive interference from neutrino tridents, and rules out, at 99% C.L., the V-A prediction without the interference.

Published
1991

36. Hadron-shower penetration depth and muon production by hadrons of 40, 70, and 100 GeV

Author

F. J. Sciulli, F. S. Merritt, de Barbaro P, D. D. Yovanovitch, W.C. Leung, P.Z. Quintas, H. S. Budd, W. K. Sakumoto, Bruce Schumm, W.C. Lefmann, M. J. Lamm, H. Schellman, W. Marsh, Bruce J. King, S.A. Rabinowitz, W. G. Seligman, W. H. Smith, C. Foudas, A. Bodek, M. J. Oreglia, Mishra, R. E. Blair, M. H. Shaevitz, F. Borcherding, R. H. Bernstein, P.H. Sandler, and K.T. Bachmann

Subjects
Nuclear physics, Physics, Shower, Particle physics, Muon, Hadron, Penetration depth
Published
1990

37. Erratum to 'Hadron shower energy and direction measurements using drift chambers' [Nucl. Instr. and Meth. A 340 (1994) 474–484]

Author

T.S. Kinnel, P.H. Sandler, W.H. Smith, C. Arroyo, K.T. Bachmann, A.O. Bazarko, T. Bolton, C. Foudas, B.J. King, W.C. Lefmann, W.C. Leung, S.R. Mishra, E. Oltman, P.Z. Quintas, S.A. Rabinowitz, F.J. Sciulli, W.G. Seligman, M.H. Shaevitz, F.S. Merritt, M.J. Oreglia, B.A. Schumm, R.H. Bernstein, F.O. Borcherding, H.E. Fisk, M.J. Lamm, W. Marsh, K.W.B. Merritt, H. Schellman, D.D. Yovanovitch, A. Bodek, H.S. Budd, P. de Barbaro, and W.K. Sakumoto

Subjects
Nuclear and High Energy Physics, Instrumentation
Published
1995

38. Measurement of inverse muon decayνμ+e→μ−+νeat Fermilab Tevatron energies 15–600 GeV

Author

W. Marsh, M. J. Lamm, H. E. Fisk, W.C. Lefmann, R. H. Bernstein, F. S. Merritt, F. Borcherding, B.A. Schumm, M. J. Oreglia, S. R. Mishra, F. J. Sciulli, K. W. Merritt, K.T. Bachmann, D. D. Yovanovitch, R.E. Blair, W. H. Smith, H. S. Budd, E. Oltman, M. H. Shaevitz, P.Z. Quintas, H. Schellman, W.C. Leung, W. K. Sakumoto, C. Foudas, and A. Bodek

Subjects
Physics, Particle physics, Muon, Computer Science::Information Retrieval, Tevatron, General Physics and Astronomy, Elementary particle, Nuclear physics, Massless particle, High Energy Physics::Experiment, Fermilab, Neutrino, Charged current, Lepton
Abstract

We report on a measurement of inverse muon decay /nu//sub /mu//+e/r arrow//mu//sup /minus//+/nu//sub e/ at the Fermilab Tevatron. A sample of 1151 inverse-/mu/-decay events, produced by neutrinos with laboratory energy in the range 15/le//ital E//sub /nu///le/600 GeV, is extracted. We measure the rate of this reaction with respect to the /nu//sub /mu//-/ital N/ charged-current interaction to be (0.125/plus minus/0.009(stat)/plus minus/0.003(syst))/times/10/sup /minus/2/. The measurement supports /ital V/---/ital A/ structure of the weak current, left-handed two-component neutrinos, and a cross section rising linearly with respect to the center-of-mass energy.

Published
1989

39. Neutrino production of same-sign dimuons

Author

K.T. Bachmann, R.E. Blair, D. D. Yovanovitch, Frank Merritt, F. J. Sciulli, W.C. Leung, W.C. Lefmann, R. H. Bernstein, W. K. Sakumoto, E. Oltman, H. Schellman, K. W. Merritt, F.O. Borcherding, P.Z. Quintas, William L. Marsh, Michael H. Shaevitz, Arie Bodek, Mark Oreglia, W. H. Smith, B.A. Schumm, S.R. Mishra, C. Foudas, H. S. Budd, M. J. Lamm, and H. E. Fisk

Subjects
Physics, Particle physics, Antiparticle, Muon, Pair production, Antimatter, General Physics and Astronomy, Elementary particle, Production (computer science), Neutrino, Lepton
Abstract

In a sample of 670 000 charged-current neutrino events, 101 ${\ensuremath{\mu}}^{\mathrm{\ensuremath{-}}}$${\ensuremath{\mu}}^{\mathrm{\ensuremath{-}}}$ events have been observed, with 30 GeV${E}_{\ensuremath{\nu}}$600 GeV and ${P}_{\ensuremath{\mu}}$g9 GeV/c for both muons. After background subtraction, 18.5\ifmmode\pm\else\textpm\fi{}13.9 events remain, yielding a prompt rate of (5.5\ifmmode\pm\else\textpm\fi{}4.1)\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}5}$ per charged-current event. A sample of 124 000 antineutrino events yields 15 ${\ensuremath{\mu}}^{+}$${\ensuremath{\mu}}^{+}$ events, giving 6.4\ifmmode\pm\else\textpm\fi{}4.2 events after background subtraction and a prompt rate of (1.0\ifmmode\pm\else\textpm\fi{}0.7)\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}4}$ per charged-current event. The numbers and kinematic distributions of these events are consistent with standard model sources.

Published
1988

40. Electroweak Processes Observed in Neutrino Scattering by the CCFR Collaboration

Author

W.C. Leung, H. E. Fisk, F. S. Merritt, W.C. Lefmann, B.A. Schumm, R.E. Blair, K. T. Bachman, S. R. Mishra, C. Foudas, D. D. Yovanovitch, F. Borcherding, P.Z. Quintas, M. J. Oreglia, F. J. Sciulli, E. Oltman, W. K. Sakumoto, W. Marsh, H. S. Budd, M. H. Shaevitz, H. Schellman, A. Bodek, W. H. Smith, K. W. Merritt, R. H. Bernstein, and M. J. Lamm

Subjects
Nuclear physics, Physics, Particle physics, Muon, Scattering, High Energy Physics::Phenomenology, Electroweak interaction, Tevatron, Inverse, High Energy Physics::Experiment, Fermilab, Neutrino, Lepton
Abstract

The wide-band, high energy neutrino beam at the Fermilab Tevatron has made possible the observation of several electroweak processes with relatively high statistics. We present here measurements of v µ e- → µ- v e (inverse muon decay, IMD), v µ N → µ-Nµ+vµ (coherent trilepton production, CTP), and also a search for vµN → X N µ → X µ+µ-vµ (a particular case of neutral heavy lepton, NHL). These data are from a preliminary analysis of 670,000 neutrino- and 124,000 antineutrino scattering events, with visible energy in the range 30 – 600 GeV, observed by experiment FNAL E744, the CCFR Collaboration.

Published
1989

41. Measurement of the Strange Quark Sea from Neutrino Dimuon Production at the Tevatron by the CCFR Collaboration

Author

F. J. Sciulli, W. Marsh, W.C. Leung, D. D. Yovanovitch, K. T. Bachman, H. Schellman, M. H. Shaevitz, R. H. Bernstein, M. J. Oreglia, H. S. Budd, R.E. Blair, F. Borcherding, F. S. Merritt, H. E. Fisk, P.Z. Quintas, K. W. Merritt, W. K. Sakumoto, E. Oltman, C. Foudas, W. H. Smith, S. R. Mishra, B.A. Schumm, W.C. Lefmann, M. J. Lamm, and A. Bodek

Subjects
Physics, Strange quark, Particle physics, High energy, Cabibbo–Kobayashi–Maskawa matrix, Branching fraction, High Energy Physics::Phenomenology, Tevatron, Visible energy, Nuclear physics, High Energy Physics::Experiment, Charm (quantum number), Neutrino, Nuclear Experiment
Abstract

We report here on a new high energy neutrino scattering experiment (FNAL E744) by the CCFR Collaboration, and present a preliminary analysis of 1529 neutrino produced- and 284 antineutrino produced µ+µ- events. These dimuons, with visible energy in the range 30 – 600 GeV, are part of a sample of about 794,000 charged-current events. The events are used to extract the strange quark magnitude and shape, and the semileptonic branching ratio of charm.

Published
1989

42. Color coherent radiation in multijet events from pp- collisions at √s = 1.8 TeV

Author

B. Abbott, M. Abolins, B.S. Acharya, I. Adam, D.L. Adams, M. Adams, S. Ahn, H. Aihara, G.A. Alves, E. Amidi, N. Amos, E.W. Anderson, R. Astur, M.M. Baarmand, A. Baden, V. Balamurali, J. Balderston, B. Baldin, S. Banerjee, J. Bantly, J.F Bartlett, K. Bazizi, A. Belyaev, S.B. Beri, I. Bertram, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Bhattacharjee, N. Biswas, G. Blazey, S. Blessing, P. Bloom, A. Boehnlein, N.I. Bojko, F. Borcherding, C. Boswell, A. Brandt, R. Brock, A. Bross, D. Buchholz, V.S. Burtovoi, J.M. Butler, W. Carvalho, D. Casey, Z. Casilum, H. Castilla-Valdez, D. Chakraborty, S.-M. Chang, S.V. Chekulaev, L.-P. Chen, W. Chen, S. Choi, S. Chopra, B.C. Choudhary, J.H. Christenson, M. Chung, D. Claes, A.R. Clark, W.G. Cobau, J. Cochran, W.E. Cooper, C. Cretsinger, D. Cullen-Vidal, M.A.C. Cummings, D. Cutts, O.I. Dahl, K. Davis, K. De, K. Del Signore, M. Demarteau, D. Denisov, S.P. Denisov, H.T. Diehl, M. Diesburg, G. Di Loreto, P. Draper, Y. Ducros, L.V. Dudko, S.R. Dugad, D. Edmunds, J. Ellison, V.D. Elvira, R. Engelmann, S. Eno, G. Eppley, P. Ermolov, O.V. Eroshin, V.N. Evdokimov, T. Fahland, M. Fatyga, M.K. Fatyga, S. Feher, D. Fein, T. Ferbel, G. Finocchiaro, H.E. Fisk, Y. Fisyak, E. Flattum, G.E. Forden, M. Fortner, K.C. Frame, S. Fuess, E. Gallas, A.N. Galyaev, P. Gartung, T.L. Geld, R.J. Genik, K. Genser, C.E. Gerber, B. Gibbard, S. Glenn, B. Gobbi, M. Goforth, A. Goldschmidt, B. Gómez, G. Gómez, P.I. Goncharov, J.L. González Solís, H. Gordon, L.T. Goss, K. Gounder, A. Goussiou, N. Graf, P.D. Grannis, D.R. Green, J. Green, H. Greenlee, G. Grim, S. Grinstein, N. Grossman, P. Grudberg, S. Grünendahl, G. Guglielmo, J.A. Guida, J.M. Guida, A. Gupta, S.N. Gurzhiev, P. Gutierrez, Y.E. Gutnikov, N.J. Hadley, H. Haggerty, S. Hagopian, V. Hagopian, K.S. Hahn, R.E. Hall, P. Hanlet, S. Hansen, J.M. Hauptman, D. Hedin, A.P. Heinson, U. Heintz, R. Hernández-Montoya, T. Heuring, R. Hirosky, J.D. Hobbs, B. Hoeneisen, J.S. Hoftun, F. Hsieh, Ting Hu, Tong Hu, T. Huehn, A.S. Ito, E. James, J. Jaques, S.A. Jerger, R. Jesik, J.Z.-Y. Jiang, T. Joffe-Minor, K. Johns, M. Johnson, A. Jonckheere, M. Jones, H. Jöstlein, S.Y. Jun, C.K. Jung, S. Kahn, G. Kalbfleisch, J.S. Kang, D. Karmgard, R. Kehoe, M.L. Kelly, C.L. Kim, S.K. Kim, A. Klatchko, B. Klima, C. Klopfenstein, V.I. Klyukhin, V.I. Kochetkov, J.M. Kohli, D. Koltick, A.V. Kostritskiy, J. Kotcher, A.V. Kotwal, J. Kourlas, A.V. Kozelov, E.A. Kozlovski, J. Krane, M.R. Krishnaswamy, S. Krzywdzinski, S. Kunori, S. Lami, H. Lan, R. Lander, F. Landry, G. Landsberg, B. Lauer, A. Leflat, H. Li, J. Li, Q.Z. Li-Demarteau, J.G.R. Lima, D. Lincoln, S.L. Linn, J. Linnemann, R. Lipton, Y.C. Liu, F. Lobkowicz, S.C. Loken, S. Lökös, L. Lueking, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, R. Madden, L. Magaña-Mendoza, S. Mani, H.S. Mao, R. Markeloff, T. Marshall, M.I. Martin, K.M. Mauritz, B. May, A.A. Mayorov, R. McCarthy, J. McDonald, T. McKibben, J. McKinley, T. McMahon, H.L. Melanson, M. Merkin, K.W. Merritt, H. Miettinen, A. Mincer, C.S. Mishra, N. Mokhov, N.K. Mondal, H.E. Montgomery, P. Mooney, H. da Motta, C. Murphy, F. Nang, M. Narain, V.S. Narasimham, A. Narayanan, H.A. Neal, J.P. Negret, P. Nemethy, M. Nicola, D. Norman, L. Oesch, V. Oguri, E. Oltman, N. Oshima, D. Owen, P. Padley, M. Pang, A. Para, Y.M. Park, R. Partridge, N. Parua, M. Paterno, J. Perkins, M. Peters, R. Piegaia, H. Piekarz, Y. Pischalnikov, V.M. Podstavkov, B.G. Pope, H.B. Prosper, S. Protopopescu, J. Qian, P.Z. Quintas, R. Raja, S. Rajagopalan, O. Ramirez, L. Rasmussen, S. Reucroft, M. Rijssenbeek, T. Rockwell, N.A. Roe, P. Rubinov, R. Ruchti, J. Rutherfoord, A. Sánchez-Hernández, A. Santoro, L. Sawyer, R.D. Schamberger, H. Schellman, J. Sculli, E. Shabalina, C. Shaffer, H.C. Shankar, R.K. Shivpuri, M. Shupe, H. Singh, J.B. Singh, V. Sirotenko, W. Smart, R.P. Smith, R. Snihur, G.R. Snow, J. Snow, S. Snyder, J. Solomon, P.M. Sood, M. Sosebee, N. Sotnikova, M. Souza, A.L. Spadafora, R.W. Stephens, M.L. Stevenson, D. Stewart, F. Stichelbaut, D.A. Stoianova, D. Stoker, M. Strauss, K. Streets, M. Strovink, A. Sznajder, P. Tamburello, J. Tarazi, M. Tartaglia, T.L.T. Thomas, J. Thompson, T.G. Trippe, P.M. Tuts, N. Varelas, E.W. Varnes, D. Vititoe, A.A. Volkov, A.P. Vorobiev, H.D. Wahl, G. Wang, J. Warchol, G. Watts, M. Wayne, H. Weerts, A. White, J.T. White, J.A. Wightman, S. Willis, S.J. Wimpenny, J.V.D. Wirjawan, J. Womersley, E. Won, D.R. Wood, H. Xu, R. Yamada, P. Yamin, J. Yang, T. Yasuda, P. Yepes, C. Yoshikawa, S. Youssef, J. Yu, Y. Yu, Z.H. Zhu, D. Zieminska, A. Zieminski, E.G. Zverev, and A. Zylberstejn

Subjects
Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Pseudorapidity, High Energy Physics::Phenomenology, Detector, Monte Carlo method, Tevatron, High Energy Physics::Experiment, Fermilab, Radiation, Coherence (physics)
Abstract

We report on a study of color coherence effects in pp- collisions at a center of mass energy √s = 1.8 TeV. The data were collected with the DØ detector during the 1992-1993 run of the Fermilab Tevatron Collider. We observe the presence of initial-to-final state color interference with the spatial correlations between soft and hard jets in multijet events in the central and in forward pseudorapidity regions. The results are compared to Monte Carlo simulations with different color coherence implementations and to the predictions of script O sign(α3s) QCD calculations. © 1997 Elsevier Science B.V.

43. Evidence of color coherence effects in W + jets events from pp collisions at √s = 1.8 TeV

Author

B. Abbott, M. Abolins, V. Abramov, B.S. Acharya, I. Adam, D.L. Adams, M. Adams, S. Ahn, V. Akimov, G.A. Alves, N. Amos, E.W. Anderson, M.M. Baarmand, V.V. Babintsev, L. Babukhadia, A. Baden, B. Baldin, S. Banerjee, J. Bantly, E. Barberis, P. Baringer, J.F. Bartlett, A. Belyaev, S.B. Beri, I. Bertram, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Bhattacharjee, G. Blazey, S. Blessing, P. Bloom, A. Boehnlein, N.I. Bojko, F. Borcherding, C. Boswell, A. Brandt, R. Breedon, G. Briskin, R. Brock, A. Bross, D. Buchholz, V.S. Burtovoi, J.M. Butler, W. Carvalho, D. Casey, Z. Casilum, H. Castilla-Valdez, D. Chakraborty, K.M. Chan, S.V. Chekulaev, W. Chen, D.K. Cho, S. Choi, S. Chopra, B.C. Choudhary, J.H. Christenson, M. Chung, D. Claes, A.R. Clark, W.G. Cobau, J. Cochran, L. Coney, W.E. Cooper, D. Coppage, C. Cretsinger, D. Cullen-Vidal, M.A.C. Cummings, D. Cutts, O.I. Dahl, K. Davis, K. De, K. Del Signore, M. Demarteau, D. Denisov, S.P. Denisov, H.T. Diehl, M. Diesburg, G. Di Loreto, P. Draper, Y. Ducros, L.V. Dudko, S.R. Dugad, A. Dyshkant, D. Edmunds, J. Ellison, V.D. Elvira, R. Engelmann, S. Eno, G. Eppley, P. Ermolov, O.V. Eroshin, J. Estrada, H. Evans, V.N. Evdokimov, T. Fahland, M.K. Fatyga, S. Feher, D. Fein, T. Ferbel, H.E. Fisk, Y. Fisyak, E. Flattum, G.E. Forden, M. Fortner, K.C. Frame, S. Fuess, E. Gallas, A.N. Galyaev, P. Gartung, V. Gavrilov, T.L. Geld, R.J. Genik II, K. Genser, C.E. Gerber, Y. Gershtein, B. Gibbard, G. Ginther, B. Gobbi, B. Gómez, G. Gómez, P.I. Goncharov, J.L. González Solı́s, H. Gordon, L.T. Goss, K. Gounder, A. Goussiou, N. Graf, P.D. Grannis, D.R. Green, J.A. Green, H. Greenlee, S. Grinstein, P. Grudberg, S. Grünendahl, G. Guglielmo, J.A. Guida, J.M. Guida, A. Gupta, S.N. Gurzhiev, G. Gutierrez, P. Gutierrez, N.J. Hadley, H. Haggerty, S. Hagopian, V. Hagopian, K.S. Hahn, R.E. Hall, P. Hanlet, S. Hansen, J.M. Hauptman, C. Hays, C. Hebert, D. Hedin, A.P. Heinson, U. Heintz, R. Hernández-Montoya, T. Heuring, R. Hirosky, J.D. Hobbs, B. Hoeneisen, J.S. Hoftun, F. Hsieh, Tong Hu, A.S. Ito, J. Jaques, S.A. Jerger, R. Jesik, T. Joffe-Minor, K. Johns, M. Johnson, A. Jonckheere, M. Jones, H. Jöstlein, S.Y. Jun, S. Kahn, D. Karmanov, D. Karmgard, R. Kehoe, S.K. Kim, B. Klima, C. Klopfenstein, B. Knuteson, W. Ko, J.M. Kohli, D. Koltick, A.V. Kostritskiy, J. Kotcher, A.V. Kotwal, A.V. Kozelov, E.A. Kozlovsky, J. Krane, M.R. Krishnaswamy, S. Krzywdzinski, M. Kubantsev, S. Kuleshov, Y. Kulik, S. Kunori, F. Landry, G. Landsberg, A. Leflat, J. Li, Q.Z. Li, J.G.R. Lima, D. Lincoln, S.L. Linn, J. Linnemann, R. Lipton, J.G. Lu, A. Lucotte, L. Lueking, A.K.A. Maciel, R.J. Madaras, R. Madden, L. Magaña-Mendoza, V. Manankov, S. Mani, H.S. Mao, R. Markeloff, T. Marshall, M.I. Martin, R.D. Martin, K.M. Mauritz, B. May, A.A. Mayorov, R. McCarthy, J. McDonald, T. McKibben, J. McKinley, T. McMahon, H.L. Melanson, M. Merkin, K.W. Merritt, C. Miao, H. Miettinen, A. Mincer, C.S. Mishra, N. Mokhov, N.K. Mondal, H.E. Montgomery, M. Mostafa, H. da Motta, F. Nang, M. Narain, V.S. Narasimham, A. Narayanan, H.A. Neal, J.P. Negret, P. Nemethy, D. Norman, L. Oesch, V. Oguri, N. Oshima, D. Owen, P. Padley, A. Para, N. Parashar, Y.M. Park, R. Partridge, N. Parua, M. Paterno, B. Pawlik, J. Perkins, M. Peters, R. Piegaia, H. Piekarz, Y. Pischalnikov, B.G. Pope, H.B. Prosper, S. Protopopescu, J. Qian, P.Z. Quintas, R. Raja, S. Rajagopalan, O. Ramirez, N.W. Reay, S. Reucroft, M. Rijssenbeek, T. Rockwell, M. Roco, P. Rubinov, R. Ruchti, J. Rutherfoord, A. Sánchez-Hernández, A. Santoro, L. Sawyer, R.D. Schamberger, H. Schellman, J. Sculli, E. Shabalina, C. Shaffer, H.C. Shankar, R.K. Shivpuri, D. Shpakov, M. Shupe, R.A. Sidwell, H. Singh, J.B. Singh, V. Sirotenko, P. Slattery, E. Smith, R.P. Smith, R. Snihur, G.R. Snow, J. Snow, S. Snyder, J. Solomon, X.F. Song, M. Sosebee, N. Sotnikova, M. Souza, N.R. Stanton, G. Steinbrück, R.W. Stephens, M.L. Stevenson, F. Stichelbaut, D. Stoker, V. Stolin, D.A. Stoyanova, M. Strauss, K. Streets, M. Strovink, A. Sznajder, P. Tamburello, J. Tarazi, M. Tartaglia, T.L.T. Thomas, J. Thompson, D. Toback, T.G. Trippe, P.M. Tuts, V. Vaniev, N. Varelas, E.W. Varnes, A.A. Volkov, A.P. Vorobiev, H.D. Wahl, J. Warchol, G. Watts, M. Wayne, H. Weerts, A. White, J.T. White, J.A. Wightman, S. Willis, S.J. Wimpenny, J.V.D. Wirjawan, J. Womersley, D.R. Wood, R. Yamada, P. Yamin, T. Yasuda, P. Yepes, K. Yip, C. Yoshikawa, S. Youssef, J. Yu, Y. Yu, M. Zanabria, Z. Zhou, Z.H. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, E.G. Zverev, and A. Zylberstejn

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Monte Carlo method, Detector, Tevatron, High Energy Physics::Experiment, Fermilab, Coherence (physics)
Abstract

We report the results of a study of color coherence effects in pp collisions based on data collected by the DØ detector during the 1994-1995 run of the Fermilab Tevatron Collider, at a center of mass energy √s = 1.8 TeV. Initial-to-final state color interference effects are observed by examining particle distribution patterns in events with a W boson and at least one jet. The data are compared to Monte Carlo simulations with different color coherence implementations and to an analytic modified-leading-logarithm perturbative calculation based on the local parton-hadron duality hypothesis. © 1999 Published by Elsevier Science B.V. All rights reserved.

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