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22 results on '"D.C. Cundy"'

1. Measurement of structure factors in inelastic neutrino scattering

Author

C. Franzinetti, R.B. Palmer, T. B. Novey, M. Nikolic, J.B.M. Pattison, W. B. Fretter, C. Manfredotti, H. Yoshiki, C.A. Ramm, F. A. Nezrick, D.C. Cundy, H.W.K. Hopkins, Ioulian Budagov, D.H. Perkins, W. Venus, H. Wachsmuth, G. Myatt, B. Roe, and R. Stump

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, High Energy Physics::Phenomenology, Elementary particle, Inelastic scattering, Scale invariance, Inelastic neutron scattering, Nuclear physics, Pomeron, High Energy Physics::Experiment, Neutrino, Nucleon
Abstract

Neutrino scattering cross-sections in the deep inelastic continuum have been determined and shown to exhibit the point-like behaviour, or scale invariance, previously observed in electroproduction experiments. The structure functions display the features predicted by the Pomeron exchange model for virtual W-scattering. Their magnitudes are compared with various theories.

Published
1969

2. Experimental test of the partially conserved axial-vector-current hypothesis

Author

M. Nikolic, M. Rollier, T. B. Novey, J. Colas, D.H. Perkins, R. B. Palmer, C. Franzinetti, J. L. Masnou, C. Manfredotti, D.C. Cundy, J. Six, F. A. Nezrick, B. Roe, R. Stump, W. B. Fretter, H. Yoshiki, S. Bonetti, C.A. Ramm, H. Wachsmuth, E. Fiorini, G. Myatt, W. Venus, J.B.M. Pattison, H.W.K. Hopkins, and Ioulian Budagov

Subjects
Physics, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Standard deviation, Square (algebra), Nuclear physics, Momentum, Cross section (physics), Pion, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Pseudovector
Abstract

The partially conserved axial current hypothesis (PCAC) can be checked in the inelastic neutrino inteiactions for small values of q2, square of the leptonic transfer quadrivector. It relates the differential cross section for the reaction v, + a + p- + /3 to the cross section n+ + a + P for the same hadronic mass Mn in both reactions. This study shows that the experi- mental results are in agreement to one standard deviation with PCAC's predictions, for q2 < 0.12 GeV/c. We show especially that the correction due to the transverse component of the weak current, estimated by the vector dominance model, is important.

Published
1969

3. Observation of 'elastic' hyperon production by antineutrinos

Author

C. Franzinetti, F. Jacquet, R.G. Worthington, V. Brisson, L. Jauneau, D. Haidt, M. Haguenauer, A. Lagarrigue, D.C. Cundy, J. McKenzie, E. Bellotti, D.H. Perkins, Jacques Lemonne, S. Kabe, K. Schultze, G. Myatt, M.J. Esten, T. Eichten, S. Bonetti, A.M. Lutz, L. Kluberg, W. Van Donnick, E. Fiorini, A.G. Michette, F. W. Bullock, A. Pullia, C. Conta, H. Wachsmuth, C.A. Ramm, C. Pascaud, S. Natali, J. Morfin, J. von Krogh, Pierre Vilain, Ph. Heusse, L.M. Chounet, J.P. Vialle, B. Degrange, Jean Sacton, T.W. Jones, R.H. Schäfer, W. Frenz, P. Musset, U. Nguyen-Khac, M. Brini-Penzo, J.B.M. Pattison, B. Aubert, H. Faissner, P. Petiau, and W. Venus

Subjects
Nuclear reaction, Physics, Nuclear physics, Nuclear and High Energy Physics, Hyperon, Atomic physics
Abstract

The production of Λ and Σ0 hyperons by antineutrinos has been observed. These events have been used to estimate the production cross-section on protons. The result is compared with the predictions of the Cabibbo theory for the process ν p → μ + Λ .

Published
1972

4. Measurement of the neutrino-nucleon and antineutrino-nucleon total cross sections

Author

V. Brisson, M. Jaffre, W.G. Scott, E. Fiorini, S. Kabe, H. Wachsmuth, A. Rousset, W. Venus, W. Van Doninck, J.P. Vialle, C. Pascaud, C. Conta, T.W. Jones, J. McKenzie, H. Faissner, P. Petiau, S. Bonetti, J. Sacton, P. Musset, G. Myatt, E. Bellotti, J. von Krogh, S. Natali, K. Schultze, M.J. Esten, W. Krenz, Pierre Vilain, F. J. Hasert, D.C. Cundy, A.G. Michette, J.B.M. Pattison, T. Eichten, M. Rollier, B. Degrange, U. Nguyen-Khac, Bernard Aubert, L.M. Chounet, M. Derrick, M. Haguenauer, L. Kluberg, D.H. Perkins, D. Haidt, A. Pullia, P. Heusse, C. Franzinetti, A.M. Lutz, J. Morfin, G. Bertrand-Coremans, L. Jauneau, F. W. Bullock, and Donatella Cavalli

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Gargamelle, Hadron, Charge (physics), Neutrino, Nucleon, Scaling, Symmetry (physics), Charged current
Abstract

The v and v nucleon total cross-sections have been determined as a function of energy using a sample of 2500 v and 950 v event. The results are compared with predictions of scaling and charge symmetry hypotheses.

Published
1973

5. A form-factor analysis from a total polarization measurement in K+μ3 decay

Author

A. E. Werbrouck, E. Fett, H. Huzita, A. Marzari-Chiesa, M. Baldo-Ceolin, V. Brisson, J. Stein, M. Nikolic, G. Miari, Giorgio Borreani, D.C. Cundy, T.I. Pedersen, G. Rinaudo, S. Natali, K. Freudenreich, G. Piscitelli, J. Bettels, G. A. T. de Jongh, A. Caforio, L. Kluberg, G. Myatt, C. D. Esveld, L.M. Chounet, F. Bobisut, L. Behr, J. Lemonne, J.P. Lowys, C. Pascaud, I. Le Dong, P. Petiau, R. T. Van de Walle, A. Haatuft, R. Møllerud, E. Calimani, S. Ciampolillo, J. Schneps, C. M. Garelli, B. Aubert, F. Romano, D. Haidt, and K. Schultze

Subjects
Physics, Angular distribution, Muon, Pion, Positron, Neutrino, Atomic physics, Polarization (waves)
Published
1968

6. Measurement of the Branching Ratio of theCP-Violating Decay ModeKL0→2π0

Author

W. Venus, I. Le Dong, B. Aubert, E. Nagy, D. Morellet, J.P. Lowys, F. A. Nezrick, P. Heusse, H. Yoshiki, M. Schiff, L. Behr, P. Beillière, Ioulian Budagov, D.C. Cundy, G. Boutang, G.H. Trilling, G. Myatt, and C. Pascaud

Subjects
Physics, Nuclear magnetic resonance, Invariance principle, Branching fraction, Pi, Atomic physics
Abstract

The branching ratio $\ensuremath{\Gamma}\frac{({{K}_{L}}^{0}\ensuremath{\rightarrow}2{\ensuremath{\pi}}^{0})}{\ensuremath{\Gamma}({{K}_{L}}^{0}\ensuremath{\rightarrow}3{\ensuremath{\pi}}^{0})}$ has been measured directly, using a heavy-liquid bubble chamber, and found to be $(3.2\ifmmode\pm\else\textpm\fi{}1.5)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$, from which $|{\ensuremath{\eta}}_{00}|=(1.9\ifmmode\pm\else\textpm\fi{}0.5)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$.

Published
1970

7. An experimental study of the form factor in the decay K+ → πoe+ν

Author

O. Erriquez, D. Waldren, D. Bertrand, D.C. Cundy, Pierre Vilain, M. Cornelssen, Francesco Romano, M. Csejthey-Barth, Jacques Lemonne, H.U. Martyn, H. Braun, T.I. Pedersen, P. B. Renton, and S. Natali

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Bubble chamber, Atomic physics
Abstract

The q2 variation of the factor ƒ + (q 2 ) in the decay K+→π0e+ν has been studied using a sample of even detected in the CERN 1.1 m3 heavy-liquid bubble chamber. The data are consistent with a linear development ƒ + (q 2 )=ƒ + (0) (1+λ + q/m 2 π ) with λ+=0.027±0.008.

Published
1973

8. Analysis of Ke3+ decay

Author

S. Natali, A. Marzari-Chiesa, L. Behr, T.I. Pedersen, D. Gamba, J.P. Lowys, P. Renton, A. Sconza, L. Kluberg, D.C. Cundy, B. Aubert, P. Petiau, H. Huzita, J. Lemonne, V. Brisson, H.J. Steiner, F. Romano, F. Mattioli, and J. Timmermans

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Momentum transfer, Analytical chemistry, Form factor (quantum field theory)
Abstract

A study has been made of 2700 decays of the type K + → π o e + v in the CERN 1.1 m 3 heavy liquid bubble chamber. The four-momentum transfer dependence of the form factor f + ( q 2 ) has been determined. The usual linear parametrization f + ( q 2 ) = f + (0) (1+ λ + q 2 / m 2 π ) gives λ + = 0.027 ± 0.010.

Published
1971

10. Single pion production by neutrinos on free protons

Author

M. Nikolic, C. Franzinetti, W. B. Fretter, G. Myatt, D.C. Cundy, C. Manfredotti, H. Yoshiki, W. Venus, C.A. Ramm, H.W.K. Hopkins, Ioulian Budagov, B. Roe, R. Stump, H. Wachsmuth, R.B. Palmer, F. A. Nezrick, J.B.M. Pattison, D.H. Perkins, and T. B. Novey

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, Resonance, Rest frame, Nuclear physics, Pion, Bubble chamber, High Energy Physics::Experiment, Invariant mass, Neutrino, Nuclear Experiment, Nucleon
Abstract

Using a propane bubble chamber the average cross-section for single pion production by neutrinos on free protons has been determined to be (1.13 ± 0.28) × 10 −38 cm 2 for neutrinos of energy between 1 and 4 GeV. The invariant mass distribution of the ( π p) system indicates that N ∗ (1236) production is the dominant process. Angular distributions of the pion in the ( π p) rest frame are also presented. The results of the experiment are compared with theoretical predictions.

Published
1969

11. High energy electronic neutrino (ve) and antineutrino () interactions

Author

V. Brisson, P. Musset, M.J. Esten, C. Franzinetti, E. Fiorini, Pierre Vilain, Donatella Cavalli, F. W. Bullock, James Pinfold, M. Jaffre, H. Wachsmuth, B. Degrange, D. Haidt, D. Lanske, E. Bellotti, A. Pullia, S. Natali, D.C. Cundy, J. Mc Kenzie, F.J. Hasert, L. Kluberg, H. Weerts, C. Conta, G. Bertrand-Coremans, U. Nguyen-Khac, L.M. Chounet, J. von Krogh, Ph. Heusse, Jean Sacton, W. Venus, M. Haguenauer, T.W. Jones, D.H. Perkins, H. Deden, A.M. Lutz, B. Aubert, P. Petiau, J. Morfin, G. Kalbfleisch, J.B.M. Pattison, M. Rollier, T. Eichten, S. Bonetti, G. Myatt, W. Krenz, W. Van Doninck, J.P. Vialle, and A. Rousset

Subjects
Physics, Nuclear and High Energy Physics, Conservation law, High energy, Muon, Scattering, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Nuclear physics, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Nucleon, Lepton
Abstract

The total cross-sections for v e ( v e ) -nucleon scattering have been measured. A test has been made of the muon number conservation law. A limit of 2.4 GeV is found the mass of the “Georgi-Glashow type” heavy lepton

Published
1973

12. Neutrino interactions in the CERN heavy liquid bubble chamber

Author

M. Nikolic, Carlo Franzinetti, R. Møllerud, W. Venus, A. Orkin-Lecourtois, M. M. Block, H. Sletten, H. Yoshiki, B. Eiben, C.A. Ramm, M. Paty, J. Keren, D.C. Cundy, R. Stump, K. Schultze, D.H. Perkins, H Burmeister, K Soop, and G. Myatt

Subjects
Nuclear physics, Physics, Particle physics, Pion, Large Hadron Collider, General Physics and Astronomy, Liquid bubble, Neutrino, Nucleon, Boson
Published
1964

13. A measurement of the branching ratio of the CP violating decay mode KLo → 2πo

Author

D. Morellet, L. Behr, G. Boutang, H. Yoshiki, D.C. Cundy, F. A. Nezrick, M. Schiff, G.H. Trilling, P. Beillière, J. van der Velde, J.P. Lowys, Ph. Heusse, G. Myatt, I. Le Dong, B. Aubert, E. Nagy, W. Venus, C. Pascaud, and Ioulian Budagov

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Pion, Branching fraction, CP violation, Liquid bubble, Atomic physics
Abstract

Using a heavy liquid bubble chamber we have measured the branching ratio (K L o → 2 π o )/(K L o →3 π o ) to be (4.5±1.8) × 10 −3 . Combined with our previously reported measurement of the branching ratio (K L o →3 π o )/(K L o → all modes) we find | η oo | to be (2.2±0.4) × 10 −3 .

Published
1968

14. A study of the elastic neutrino process ν + n → μ− + p

Author

D.C. Cundy, D.H. Perkins, M. Nikolic, C. Franzinetti, W. B. Fretter, H. Yoshiki, C. Manfredotti, C.A. Ramm, F. A. Nezrick, H. Wachsmuth, R.B. Palmer, H.W.K. Hopkins, Ioulian Budagov, G. Myatt, T. B. Novey, W. Venus, J.B.M. Pattison, B. Roe, and R. Stump

Subjects
Physics, Particle physics, Scientific method, General Physics and Astronomy, Neutrino
Published
1969

15. Search for elastic muon-neutrino electron scattering

Author

H. Weerts, A. Lagarrigue, C. Conta, F. J. Hasert, J.B.M. Pattison, M. Rollier, G. Myatt, M. Jaffre, J. Sacton, W. Venus, L. Kluberg, James Pinfold, H. Wachsmuth, V. Brisson, M. Haguenauer, E. Bellotti, J. McKenzie, Bernard Aubert, Pierre Vilain, J. von Krogh, C. Baltay, A. Rousset, E. Fiorini, D.H. Perkins, B. Degrange, D. Lanske, L.M. Chounet, A. Pullia, S. Bonetti, Donatella Cavalli, M.J. Esten, P. Musset, P. Heusse, W.G. Scott, W. Krenz, A.G. Michette, Jacques Lemonne, F. W. Bullock, W. Van Doninck, J.P. Vialle, T.W. Jones, G. Bertrand-Coremans, D. Haidt, A.M. Lutz, J. Morfin, K. Schultze, D.C. Cundy, U. Nguyen-Khac, S. Natali, H. Faissner, and P. Petiau

Subjects
Nuclear physics, Physics, Scattering cross-section, Elastic scattering, Nuclear and High Energy Physics, Particle physics, Gargamelle, Muon neutrino, Weinberg angle, Electron scattering, Event (particle physics)
Abstract

One possible event of the process ν − μ + e − → v − μ + e − has been observed. The various background processes are discussed and the event interpreted in terms of the Weinberg theory. The 90% confidence limits on the Weinberg parameter are 0.1 2 θ W

Published
1973

16. Preliminary results on Ξ− +K + nπ final states produced by 3.5 GeV K−

Author

P. Petiau, F. W. Bullock, B.S. Luetchford, V. Brisson, J.M. Scarr, H Burmeister, J.M. Olsen, A. Halsteinslid, M. Paty, G. Myatt, P. Bellière, O. Skjeggestad, C.M. Fisher, A. Rousset, D.C. Cundy, H.H. Bingham, and R. Möllerud

Subjects
Nuclear physics, Physics, Particle physics, Pion, Particle model, Isospin, Hyperon, General Physics and Astronomy, Resonance, Neutron, Strangeness
Abstract

Negative results are reported of a search for a predicted strangeness -- 3 hyperon and for possible S = --2, I =3/2 resonances in XI + K + n pi final states. Evidence is presented for the production of XI delta (1.53 Bev) by 3.5- Bev K/sup -/ with confirmation of isospin of 1/2. (R.E.U.)

Published
1963

17. Upper limits for diagonal and neutral current couplings in the CERN neutrino experiments

Author

D.H. Perkins, W. Venus, H. Wachsmuth, J.B.M. Pattison, G. Myatt, F. A. Nezrick, D.C. Cundy, and C.A. Ramm

Subjects
Nuclear physics, Elastic scattering, Coupling constant, Physics, Nuclear and High Energy Physics, Large Hadron Collider, Pion, Neutral current, Diagonal, Neutron, Neutrino, Atomic physics
Abstract

The 90% confidence limit for the coupling constant for ν e + e − →e − + ν e is found to be G diagonal G Fermi . Upper limits for two possible neutral current processes are found to be : ( ν μ + p→ ν μ + p)/( ν μ + n→ μ − + p) = 0.12 ± 0.06 and ( ν μ + p→ ν μ + π + + n)/( ν μ + p→ μ − + π + + p) = 0.08 ± 0.04.

Published
1970

18. Direct measurement of Ξ- and Ξ0 mean lives

Author

D. Morellet, F.R. Stannard, D.C. Cundy, H.H. Bingham, F. W. Bullock, J.M. Scarr, U. Nguyen-Khac, B. Ronne, C. Henderson, A.G. Wilson, M.J. Esten, W. Koch, J. Sparrow, R. Möllerud, A. Rousset, L. Jauneau, A. Halsteinslid, H. Sletten, P. Petiau, and A.K. Common

Subjects
Physics, General Physics and Astronomy, Mathematical physics
Published
1963

19. Observation of neutrino-like interactions without muon or electron in the Gargamelle neutrino experiment

Author

E. Fiorini, W. Venus, H. Wachsmuth, A.G. Michette, C. Conta, G. Myatt, R.B. Palmer, A.M. Lutz, S. Natali, M.J. Esten, A. Pullia, J. Morfin, U. Nguyen-Khac, F. J. Hasert, W. Krenz, J. Sacton, G. Bertrand-Coremans, P. Heusse, J.B.M. Pattison, D. Haidt, A. Lagarrigue, D. Blum, M. Rollier, Bianca Osculati, W.G. Scott, V. Brisson, P. Petiau, A. Rousset, Bernard Aubert, D.C. Cundy, R. Baldi, S. Bonetti, D. Lanske, M. Haguenauer, K. Schultze, E. Belotti, L.M. Chounet, W. Van Doninck, J.P. Vialle, D.H. Perkins, J. McKenzie, T.W. Jones, P. Musset, J. von Krogh, W.F. Fry, I. Danilchenko, H. Weerts, S. Kabe, D. Cavalli, U. Camerini, F. W. Bullock, L. Kluberg, Pierre Vilain, B. Degrange, and A. Orkin-Lecourtois

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, Neutral current, Physics::Instrumentation and Detectors, Electron, Solar neutrino problem, Massless particle, Nuclear physics, Antimatter, Gargamelle, High Energy Physics::Experiment, Neutrino, Neutrino oscillation, Nuclear Experiment, Charged current, Lepton
Abstract

Events induced by neutral particles and producing only hadrons, but no muon or electron, have been observed in the heavy liquid bubble chamber Gargamelle exposed to neutrino (v) and antineutrino ( v ) beams at CERN. A study of the various sources which could give rise to such events reveals that less than 20% could be attributed to neutrons or KL°. The events behave as expected if they arise from neutral current processes induced by neutrinos and antineutrinos. The ratio of the number of these events to the number of corresponding events with charged lepton is 0.22 ± 0.04 for v and 0.43 ± 0.12 for v .

Published
1974

20. An experimental study of the K+ → πoμ+ν decay dalitz plot

Author

M. Cornelssen, O. Erriquez, S. Natali, Francesco Romano, P. B. Renton, D.C. Cundy, M. Csejthey-Barth, D. Bertrand, T.I. Pedersen, P. Villain, H.U. Martyn, Jacques Lemonne, D. Waldren, and H. Braun

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Form factor (quantum field theory), Physique des particules élémentaires, Dalitz plot, Bubble chamber, Physique atomique et nucléaire
Abstract

A sample of K+μ3 events, detected in the CERN 1.1 m3 heavy-liquid bubble chamber, has been used to investigate the q2 dependence of the form factors, giving ξ(0) = -1.1 ± 1.0 and ξ(6.6m2π) = -0.34 ± 0.20, for λ+ = 0.027. A three parameter fit gives a value for λ+ = 0.025 ± 0.017 in good agreement with the preceding Ke3 analysis. © 1973., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1973

21. Lower limit for the mass of the intermediate boson

Author

V. Kaftanov, J. Keren, H. Sletten, A. Orkin-Lecourtois, C. Manfredotti, M. M. Block, B. Hahn, H Burmeister, R. Stump, C. Franzinetti, G. Bernardini, H. Faissner, R. A. Salmeron, H. Bienlein, A. Staude, F. Krienen, K. Schultze, F. Ferrero, D.C. Cundy, B. Eiben, M. Ntikolić, G. Von Dardel, J. Bartley, C. A. Bamm, M. Beinharz, J. M. Gaillard, D.H. Perkins, W. Venus, H. Steiner, H.J. Gerber, M. Holder, M. Paty, B. MØllerud, H. Yoshiki, A. Böhm, K Soop, and G. Myatt

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, Large Hadron Collider, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Astronomy and Astrophysics, Table (information), Atomic and Molecular Physics, and Optics, Lower limit, Nuclear physics, Bubble chamber, High Energy Physics::Experiment, Neutrino, Spark chamber, Particle Physics - Experiment, Boson
Abstract

The search for the muonic and the nonleptonio decays of the hypothetical intermediate boson among the neutrino events produced in the CERN neutrino experiment has been continued and concluded. The data do not give any clear evidence for such decays. Comparing the rate of possible boson reactions, observed in the spark chamber and the bubble chamber, with the calculated production rate, we arrive at a lower limit for the boson mass, ranging from 1.7 to 2.2 GeV/c2 for various assumptions about the relative abundanceB of leptonic decays (Table VI).

Published
1965

22. A measurement of the ratio of the decay rates K0L → 2γ/K0L → 3 π0

Author

W. Venus, C. Pascaud, Ioulian Budagov, F. A. Nezrick, P. Heusse, E. Nagy, R. Arnold, H. Yoshiki, G.H. Trilling, B. Aubert, D.C. Cundy, and G. Myatt

Subjects
Physics, Nuclear and High Energy Physics, Bubble chamber, Atomic physics
Abstract

Using a heavy-liquid bubble chamber, the ratio of the decay rates K 0 L → 2 γ /K 0 L → 3 π 0 has been determined to be (2.5 ± 0.7) × 10 −3 .

Published
1968

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