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Start Over Author "L. Votta" Journal physical review letters
4 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

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