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Your search keyword '"L. Votta"' showing total 7 results
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7 results on '"L. Votta"'

1. Inclusive Double-Charge-Exchangeπ−Production at 100 GeV/c

Author

W. Aitkenhead, J.I. Friedman, Venetios Polychronakos, Giorgio Maggi, D. C. Carey, G. W. Brandenburg, C. Favuzzi, D. Cutts, R.S. Dulude, P. Lavopa, L. Votta, A. E. Brenner, F. Posa, R. E. Lanou, R. Meunier, L. Rosenson, P. Spinelli, J. E. Elias, T. Lyons, G. Mikenberg, M.T. Chiaradia, C. DeMarzo, F. Waldner, G.A. Weitsch, G. Germinario, D. S. Barton, Wit Busza, R. Verdier, P.H. Garbincius, Giovanna Selvaggi, Henry W. Kendall, L. Guerriero, J. T. Massimo, T. Dobrowolski, B. Nelson, and W. Toy

Subjects
Physics, Antiparticle, Particle physics, Meson, Hadron, General Physics and Astronomy, Elementary particle, Resonance (particle physics), Nuclear physics, symbols.namesake, Pion, Antimatter, symbols, Feynman diagram, Nuclear Experiment
Abstract

Measurements of inclusive cross sections at 100 GeV/c are presented for the double-charge-exchange reactions a/sup +/p ..-->.. ..pi../sup -/X with a = ..pi.., K, or p. The measurements covered a kinematic range in the Feynman x variable of 0.3 < or = x < or = 0.9 at transverse momenta of 0.3 and 0.5 GeV/c. A model summing the contributions from resonance production and from inclusive central-region ..pi../sup -/ production is used to fit the data and demonstrates the importance of resonance production via one-pion exchange for large values of the Feynman x.

Published
1978

2. Experimental Study of Low-ptHadron Fragmentation

Author

G. Mikenberg, T. Dobrowolski, A. E. Brenner, F. Posa, D. S. Barton, C. Favuzzi, P. Spinelli, C. DeMarzo, B. Nelson, P. Lavopa, Venetios Polychronakos, R. E. Lanou, T. Lyons, J. E. Elias, L. Votta, D. C. Carey, L. Guerriero, M. D. Chiaratia, L. Rosenson, W. Aitkenhead, J. T. Massimo, R.S. Dulude, Giorgio Maggi, Henry W. Kendall, G. W. Brandenburg, J.I. Friedman, Wit Busza, P.H. Garbincius, G. Germinario, R. Verdier, D. Cutts, R. Meunier, W. Toy, Giovanna Selvaggi, and F. Waldner

Subjects
Nuclear physics, Physics, Fragmentation (mass spectrometry), Hadron, Transverse momentum, Quark model, General Physics and Astronomy, Elementary particle, Parton, Fermilab, Quantum number
Abstract

We present high-statistics results on the reactions a + p ..-->.. c + X where a and c can be any of ..pi../sup +/, K/sup + -/, p, or p-bar. The data were taken at 100 and 175 GeV/c incident momenta using the Fermilab Single-Arm Spectrometer operated over the kinematic range 0.2 < x < 1.0 and p/sub t/ < or = 1.0 GeV/c. Investigating the x dependence of the data, we find agreement with a quark-parton picture, namely the cross sections have a power-law behavior in 1 - x independent of p/sub beam/ and p/sub t/.

Published
1979

3. Energy Dependence of the Pseudorapidity Distributions in Proton-Nucleus Collisions between 50 and 200 GeV/c

Author

C. Young, C. Halliwell, Wit Busza, L. Votta, D. Luckey, and J. E. Elias

Subjects
Physics, Particle physics, Proton, Nuclear Theory, General Physics and Astronomy, chemistry.chemical_element, Uranium, Nuclear physics, medicine.anatomical_structure, chemistry, Pseudorapidity, medicine, High Energy Physics::Experiment, Nuclear Experiment, Nucleus
Abstract

Pseudorapidity distributions for proton-nucleus interactions are presented. The data cover twelve nuclei ranging from carbon to uranium and three incident proton momenta, 50, 100, and 200 GeV/c.

Published
1977

4. Projectile Dependence of Multiparticle Production in Hadron-Nucleus Interactions at 100 GeV/c

Author

C. Young, J. E. Elias, Wit Busza, D. Luckey, L. Votta, and C. Halliwell

Subjects
Physics, Nuclear reaction, Particle physics, Projectile, Mean free path, Nuclear Theory, Hadron, General Physics and Astronomy, Multiplicity (mathematics), Particle detector, Nuclear physics, Pseudorapidity, High Energy Physics::Experiment, Nuclear Experiment, Scaling
Abstract

Average multiplicities and pseudorapidity distributions for 100-GeV/c p-, K/sup +/-, and ..pi../sup +/-nucleus collisions are presented. The average multiplicities increase with nuclear thickness. The fractional increase is independent of incident particle species, provided that nuclear thicknesses are calculated in units of mean free path of the incident hadron. This scaling behavior suggests that the immediate product of a hadron-nucleon collision is a state similar to the incident hadron.

Published
1978

5. A determination of the pion and kaon structure functions

Author

T. Dobrowolski, P. Spinelli, J. E. Elias, R. Verdier, L. Rosenson, B. Nelson, M.T. Chiaradia, P. Lavopa, W. Aitkenhead, G. Mikenberg, R. E. Lanou, Wit Busza, J.I. Friedman, P.H. Garbincius, W. Toy, J. T. Massimo, A. E. Brenner, D. Cutts, D. S. Barton, R. Meunier, F. Posa, L. Guerriero, Henry W. Kendall, Venetios Polychronakos, G. Germinario, Giovanna Selvaggi, G. W. Brandenburg, T. Lyons, C. Favuzzi, C. DeMarzo, L. Votta, Giorgio Maggi, D. C. Carey, R.S. Dulude, and F. Waldner

Subjects
Quark, Physics, Particle physics, Meson, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Nuclear Theory, Quark model, Hadron, General Physics and Astronomy, Elementary particle, Parton, Nuclear physics, Pion, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment, Boson
Abstract

Quark structure functions have been extracted from low-p/sub T/ inclusive hadron production data for the pion and kaon with use of the recombination model. n/sup ..pi../=1.0 +- 0.1 and n/sup K/=2.5 +- 0.6 is obtained, where n is the leading (1-x) power of the nonstrange--valence-quark distribution. Both the pion and kaon nonstrange--sea-quark functions have napprox. =3.5.

Published
1980

6. Experimental study of single-particle inclusive hadron scattering and associated multiplicities

Author

G. Mikenberg, W. Toy, T. Dobrowolski, A. E. Brenner, L. Guerriero, J. T. Massimo, D. Cutts, C. DeMarzo, F. Waldner, C. Favuzzi, R. Meunier, B. Nelson, F. Posa, Giorgio Maggi, Giovanna Selvaggi, D. C. Carey, D. S. Barton, R.S. Dulude, G. Germinario, L. Votta, Wit Busza, Henry W. Kendall, L. Rosenson, P.H. Garbincius, M.T. Chiaradia, T. Lyons, P. Lavopa, R. E. Lanou, Venetios Polychronakos, R. Verdier, G. W. Brandenburg, P. Spinelli, J. E. Elias, W. Aitkenhead, and J.I. Friedman

Subjects
Physics, Particle physics, Spectrometer, Scattering, Hadron, Multiplicity (mathematics), Particle detector, Particle identification, Nuclear physics, Pseudorapidity, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, Particle Physics - Experiment
Abstract

An experiment using the Fermilab Single Arm Spectrometer (SAS) facility and an associated nonmagnetic vertex detector studied the reactions a+p→c+X, where a and c were π±, K±, p, or p¯. Extensive measurements were made at 100 and 175 GeV/c beam momenta with the outgoing hadrons detected in the SAS covering a kinematic range 0.12

Published
1981

7. Inclusive scattering results from the Fermilab Single Arm Spectrometer

Author

D. Cutts, R. Meunier, C. DeMarzo, T. Lyons, D. C. Carey, W. Toy, R. Verdier, G. Mikenberg, M. D. Chiaradia, P. Lavopa, R. E. Lanou, P.H. Garbincius, R.S. Dulude, P. Spinelli, F. Posa, D. S. Barton, Giorgio Maggi, J. E. Elias, Henry W. Kendall, Venetios Polychronakos, G. Germinario, J. T. Massimo, L. Rosenson, G. W. Brandenburg, W. Aitkenhead, L. Guerriero, J.I. Friedman, A. E. Brenner, C. Fazuzzi, Giovanna Selvaggi, T. Dobrowolski, B. Nelson, F. Walder, Wit Busza, G.A. Weitsch, and L. Votta

Subjects
Physics, Nuclear physics, Particle physics, Fragmentation (mass spectrometry), Spectrometer, Scattering, High Energy Physics::Experiment, Scattering process, Fermilab, Vertex detector, Multiplicity (chemistry), Power law
Abstract

Results are presented on the inclusive scattering process a+p→c+X where a and c are any of π±, K±, p or p. The data were taken at 100 and 175 GeV/c incident momentum using the Fermilab Single Arm Spectrometer. A vertex detector was also used to measure the associated charged multiplicity. The x dependences of the inclusive cross section exhibit the power law behavior expected from various fragmentation models.

Published
1978

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