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68 results on '"Wehmann A"'

1. Spin-Parity Analysis of the Centrally ProducedKS0K±π∓System at800GeV/c

Author

E. Gottschalk, Marco A. Reyes, D. Wesson, E. P. Hartouni, Modesto Sosa, A. A. Wehmann, Julián Félix, B. C. Knapp, A. Gara, G. Gutierrez, M. H. L. S. Wang, M. N. Kreisler, Kyriacos Markianos, D. C. Christian, S. Lee, M. C. Berisso, and G. Moreno

Subjects
Physics, Pion, Meson, Hadron, Pi, General Physics and Astronomy, Elementary particle, Parity (physics), Atomic physics, Large sample, Boson
Abstract

Results are presented from an analysis of a large sample of centrally produced mesons in the reaction $\mathrm{pp}\ensuremath{\rightarrow}{p}_{\mathrm{slow}}({K}_{S}^{0}{K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{\ensuremath{\mp}}){p}_{\mathrm{fast}}$ with $800\mathrm{GeV}/c$ protons incident on liquid hydrogen. Two resonances dominate the final state, the ${f}_{1}(1285)$, decaying into ${a}_{0}\ensuremath{\pi}$, and the ${f}_{1}(1420)$, decaying into ${K}^{*}K$. Both mesons are produced with equal amounts of $|{J}_{z}{|}^{\ensuremath{\eta}}{\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1}^{\ifmmode\pm\else\textpm\fi{}}$, and no ${J}_{z}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0$.

Published
1999
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2. Study ofΛ0Polarization in Four Different ExclusiveppReactions at 27.5 GeV/c

Author

M. H. L. S. Wang, M. N. Kreisler, Erik Gottschalk, L. R. Wiencke, M. D. Church, S. D. Holmes, F. R. Huson, G. Gutierrez, C. Avilez, B. Knapp, J. T. White, D.A. Jensen, B. J. Stern, G. Moreno, Julián Félix, D. C. Christian, A. A. Wehmann, M. Forbush, E. P. Hartouni, and J. Uribe

Subjects
Physics, Particle physics, Stereochemistry, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Hyperon, General Physics and Astronomy, Lambda, Lambda baryon
Abstract

We have measured the x[sub F] and P[sub T] dependence of the polarization of [Lambda][sup 0] hyperons produced in exclusive final states pp[r arrow]p[Lambda][sup 0]K[sup +][pi][sup +] [pi][sup [minus]] , pp[r arrow]p[Lambda][sup 0]K[sup +][pi][sup +] [pi][sup [minus]][pi][sup +][pi][sup [minus]] , pp[r arrow]p[Lambda][sup 0]K[sup + ][pi][sup +][pi][sup [minus]][pi][sup +] [pi][sup [minus]][pi][sup +][pi][sup [minus]] , and pp[r arrow]p[Lambda][sup 0]K[sup +][pi][sup +] [pi][sup [minus]][pi][sup +][pi][sup [minus]][pi][sup +][pi][sup [minus]][pi][sup +][pi][sup [minus] ] at 27.5thinspthinspGeV/c . We present an empirical parametrization for [Lambda][sup 0] polarization as a function of x[sub F] and P[sub T] : P=([minus]0.443[plus minus]0.03 7)x[sub F]P[sub T] for [minus]1[le]x[sub F][le]1 and 0[le]P[sub T][le]1.8 GeV/ c . This parametrization is independent of the final state and provides a good description of the data. We note that the mechanism responsible for [Lambda][sup 0] polarization appears to be independent of the production mechanism. [copyright] [ital 1999] [ital The American Physical Society]

Published
1999
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3. Partial Wave Analysis of the Centrally ProducedKSKSSystem at800GeV/c

Author

Julián Félix, A. A. Wehmann, D. C. Christian, M. H. L. S. Wang, M. N. Kreisler, E. Gottschalk, G. Gutierrez, Modesto Sosa, M. C. Berisso, A. Gara, B. C. Knapp, E. P. Hartouni, Marco A. Reyes, Kyriacos Markianos, S. Lee, D. Wesson, and G. Moreno

Subjects
Physics, Angular momentum, Pion, Meson, Partial wave analysis, Hadron, General Physics and Astronomy, High Energy Physics::Experiment, Elementary particle, Atomic physics, Nuclear Experiment, Boson, Spin-½
Abstract

Results are presented from a partial wave analysis of a sample of centrally produced mesons in the reaction $\mathrm{pp}\ensuremath{\rightarrow}{p}_{\mathrm{slow}}({K}_{S}{K}_{S}){p}_{\mathrm{fast}}$, with 800 GeV/c protons incident on a liquid hydrogen target. The meson system is found to be predominantly $S$ wave in the mass range between ${K}_{S}{K}_{S}$ threshold and $1.55\mathrm{GeV}{/c}^{2}$. The ${f}_{0}(1500)$ is observed in this region. Above $1.55\mathrm{GeV}{/c}^{2}$ two solutions are possible, one with mainly $S$ wave and another with mainly $D$ wave. This ambiguity prevents a unique determination of the spin of the ${f}_{J}(1710)$ meson.

Published
1998
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4. Study ofΛ0Polarization inpp→pΛ0K+π+π−π+π−at 27.5 GeV

Author

Julián Félix, M. Forbush, B. C. Knapp, S. D. Holmes, C. Avilez, E. P. Hartouni, B. J. Stern, G. Gutierrez, J. T. White, M. N. Kreisler, D. C. Christian, Church, A. A. Wehmann, G. Moreno, F. R. Huson, D.A. Jensen, Erik Gottschalk, L. R. Wiencke, and J. Uribe

Subjects
Physics, Crystallography, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Quantum electrodynamics, Transverse momentum, Pi, General Physics and Astronomy, Invariant mass, Polarization (waves), Lambda, Lambda baryon
Abstract

We measured the polarization of 51195 {Lambda}{sup 0}{close_quote}s produced in the specific reaction {ital pp}{r_arrow}{ital p}{Lambda}{sup 0}{ital K}{sup +}{pi}{sup +}{pi}{sup {minus}}{pi}{sup +}{pi}{sup {minus}} with 27.5GeV/{ital c} protons incident on a liquid hydrogen target. Because the reaction was measured completely, the polarization was studied versus the following: {ital x}{sub {ital F}}({minus}1to+1), {Lambda}{sup 0} transverse momentum (0 to 1.32GeV/{ital c}), correlations with the momentum vectors of the other particles in the reaction, and the invariant mass of combinations of particles in the final state. The dependence of the polarization on these variables does not always agree with theoretical expectations. {copyright} {ital 1995 The American Physical Society.}

Published
1996
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5. Precise measurement of theΛ0and Λ¯0masses and a test ofCPTinvariance

Author

J. Uribe, B. J. Stern, J. T. White, C. Avilez, G. Gutierrez, L. R. Wiencke, E. Gottschalk, E. P. Hartouni, B. C. Knapp, D.A. Jensen, F. R. Huson, Church, M. N. Kreisler, A. A. Wehmann, M. Forbush, and D. C. Christian

Subjects
Combinatorics, Systematic error, Physics, Antiparticle, Classical mechanics, Meson, CPT symmetry, Hadron, General Physics and Astronomy, Elementary particle, Lambda, Lambda baryon
Abstract

A precision measurement of the masses of the ${\mathrm{\ensuremath{\Lambda}}}^{0}$ and \ensuremath{\Lambda}${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}^{0}$ hyperons is obtained from Gaussian fits to the invariant mass distributions for 20 138 ${\mathrm{\ensuremath{\Lambda}}}^{0}$'s and 18 309 \ensuremath{\Lambda}${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}^{0}$'s. The Gaussians have standard deviations of 0.49 and 0.51 MeV/${\mathit{c}}^{2}$ for the ${\mathrm{\ensuremath{\Lambda}}}^{0}$ and \ensuremath{\Lambda}${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}^{0}$, respectively. Systematic errors were reduced by calibrating the spectrometer with 60 000 exclusive events containing a ${\mathit{K}}_{\mathit{S}}^{0}$. We find ${\mathit{M}}_{\mathrm{\ensuremath{\Lambda}}}$=1115.678\ifmmode\pm\else\textpm\fi{}0.006\ifmmode\pm\else\textpm\fi{}0.006 MeV/${\mathit{c}}^{2}$ and ${\mathit{M}}_{\mathrm{\ensuremath{\Lambda}}\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}$=1115.690\ifmmode\pm\else\textpm\fi{}0.008\ifmmode\pm\else\textpm\fi{}0.006 MeV/${\mathit{c}}^{2}$. The ${\mathrm{\ensuremath{\Lambda}}}^{0\mathrm{\ensuremath{-}}}$\ensuremath{\Lambda}${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}^{0}$ mass difference testing CPT invariance is -0.012\ifmmode\pm\else\textpm\fi{}0.010 MeV/${\mathit{c}}^{2}$.

Published
1994
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6. Search for Active Neutrino Disappearance Using Neutral-Current Interactions in the MINOS Long-Baseline Experiment

Author

P. Adamson, C. Andreopoulos, K. E. Arms, R. Armstrong, D. J. Auty, D. S. Ayres, C. Backhouse, B. Baller, G. Barr, W. L. Barrett, B. R. Becker, A. Belias, R. H. Bernstein, D. Bhattacharya, M. Bishai, A. Blake, G. J. Bock, J. Boehm, D. J. Boehnlein, D. Bogert, C. Bower, E. Buckley-Geer, S. Cavanaugh, J. D. Chapman, D. Cherdack, S. Childress, B. C. Choudhary, J. H. Cobb, S. J. Coleman, A. J. Culling, J. K. de Jong, M. Dierckxsens, M. V. Diwan, M. Dorman, S. A. Dytman, C. O. Escobar, J. J. Evans, E. Falk Harris, G. J. Feldman, M. V. Frohne, H. R. Gallagher, A. Godley, M. C. Goodman, P. Gouffon, R. Gran, E. W. Grashorn, N. Grossman, K. Grzelak, A. Habig, D. Harris, P. G. Harris, J. Hartnell, R. Hatcher, K. Heller, A. Himmel, A. Holin, L. Hsu, J. Hylen, G. M. Irwin, M. Ishitsuka, D. E. Jaffe, C. James, D. Jensen, T. Kafka, S. M. S. Kasahara, J. J. Kim, M. S. Kim, G. Koizumi, S. Kopp, M. Kordosky, D. J. Koskinen, S. K. Kotelnikov, A. Kreymer, S. Kumaratunga, K. Lang, J. Ling, P. J. Litchfield, R. P. Litchfield, L. Loiacono, P. Lucas, J. Ma, W. A. Mann, A. Marchionni, M. L. Marshak, J. S. Marshall, N. Mayer, A. M. McGowan, J. R. Meier, M. D. Messier, C. J. Metelko, D. G. Michael, W. H. Miller, S. R. Mishra, C. D. Moore, J. Morfín, L. Mualem, S. Mufson, S. Murgia, J. Musser, D. Naples, J. K. Nelson, H. B. Newman, R. J. Nichol, T. C. Nicholls, J. P. Ochoa-Ricoux, W. P. Oliver, R. Ospanov, J. Paley, V. Paolone, A. Para, T. Patzak, Ž. Pavlović, G. Pawloski, G. F. Pearce, C. W. Peck, D. A. Petyt, R. Pittam, R. K. Plunkett, A. Rahaman, R. A. Rameika, T. M. Raufer, B. Rebel, J. Reichenbacher, P. A. Rodrigues, C. Rosenfeld, H. A. Rubin, V. A. Ryabov, M. C. Sanchez, N. Saoulidou, J. Schneps, P. Schreiner, P. Shanahan, W. Smart, C. Smith, A. Sousa, B. Speakman, P. Stamoulis, M. Strait, N. Tagg, R. L. Talaga, M. A. Tavera, J. Thomas, M. A. Thomson, J. L. Thron, G. Tinti, I. Trostin, V. A. Tsarev, G. Tzanakos, J. Urheim, P. Vahle, B. Viren, D. R. Ward, M. Watabe, A. Weber, R. C. Webb, A. Wehmann, N. West, C. White, S. G. Wojcicki, D. M. Wright, T. Yang, K. Zhang, R. Zwaska, APC - Neutrinos, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), MINOS, AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Particle physics, etc, Neutrino mass and mixing, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Neutral current, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, FOS: Physical sciences, General Physics and Astronomy, right-handed neutrinos, 01 natural sciences, High Energy Physics - Experiment, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], High Energy Physics - Experiment (hep-ex), Neutral currents, MINOS, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Neutrino, 010306 general physics, Baseline (configuration management), Non-standard-model neutrinos
Abstract

We report the first detailed comparisons of the rates and spectra of neutral-current neutrino interactions at two widely separated locations. A depletion in the rate at the far site would indicate mixing between muon neutirnos and a sterile particle. No anomalous depletion in the reconstructed energy spectrum is observed. Assuming oscillations occur at a single mass-squared splitting, a fit to the neutral- and charged-current energy spectra limits the fraction of muon neutrino oscillating to a sterile neutrino to be below 0.68 at 90% confidence level. A less stringent limit due to a possible contribution to the measured neutral-current event rate at the far site from electron neutrino appearance at the current experimental limit is also presented., Comment: 5 pages, 3 figures

Published
2008
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7. Search for Exotic Baryons in 800 GeVpp→pΞ±π±XReactions

Author

G. Gutierrez, G. Moreno, Erik Gottschalk, D. C. Christian, B. C. Knapp, A. A. Wehmann, E. P. Hartouni, Julián Félix, M. H.L.S. Wang, M. N. Kreisler, Modesto Sosa, and Marco A. Reyes

Subjects
Baryon, Physics, Particle physics, Crystallography, Exotic baryon, Hyperon, Pi, General Physics and Astronomy, Exotic hadron
Abstract

We report the results of a high-statistics, sensitive search for narrow baryon resonances decaying to ${\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{\ensuremath{-}}$, ${\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$, ${\overline{\ensuremath{\Xi}}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, and ${\overline{\ensuremath{\Xi}}}^{+}{\ensuremath{\pi}}^{+}$. The only resonances observed are the well known ${\ensuremath{\Xi}}^{0}(1530)$ and ${\overline{\ensuremath{\Xi}}}^{0}(1530)$. No evidence is found for the states near 1862 MeV, previously reported by NA49 [Phys. Rev. Lett. 92, 042003 (2003)]. At the 95% confidence level, we find the upper limit for the production of a Gaussian enhancement with $\ensuremath{\sigma}=7.6\text{ }\text{ }\mathrm{MeV}$ in the ${\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{\ensuremath{-}}$ effective mass spectrum to be 0.3% of the number of observed ${\ensuremath{\Xi}}^{0}(1530)\ensuremath{\rightarrow}{\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$. We find similarly restrictive upper limits for an enhancement at 1862 MeV in the ${\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$, ${\overline{\ensuremath{\Xi}}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, and ${\overline{\ensuremath{\Xi}}}^{+}{\ensuremath{\pi}}^{+}$ mass spectra.

Published
2005
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8. Search for exotic baryons in 800 GeV pp--pXi+/-piX reactions

Author

D C, Christian, J, Felix, E E, Gottschalk, G, Gutierrez, E P, Hartouni, B C, Knapp, M N, Kreisler, G, Moreno, M A, Reyes, M, Sosa, M H L S, Wang, and A, Wehmann

Abstract

We report the results of a high-statistics, sensitive search for narrow baryon resonances decaying to Xi-pi-, Xi-pi+, Xi+pi-, and Xi+pi+. The only resonances observed are the well known Xi0(1530) and Xi0(1530). No evidence is found for the states near 1862 MeV, previously reported by NA49 [Phys. Rev. Lett. 92, 042003 (2003)]. At the 95% confidence level, we find the upper limit for the production of a Gaussian enhancement with sigma=7.6 MeV in the Xi-pi- effective mass spectrum to be 0.3% of the number of observed Xi0(1530)--Xi-pi+. We find similarly restrictive upper limits for an enhancement at 1862 MeV in the Xi-pi+, Xi+pi-, and Xi+pi+ mass spectra.

Published
2005

9. Λ0Polarization in800−GeV/cpp→pf(Λ0K+)

Author

D. Wesson, M. C. Berisso, B. C. Knapp, Julián Félix, A. A. Wehmann, D. C. Christian, Marco Antonio Reyes Santos, M. H. L. S. Wang, M. N. Kreisler, A. Gara, G. Gutierrez, Modesto Antonio Sosa Aquino, Kyriacos Markianos, E. P. Hartouni, G. Moreno, S. Lee, and Erik Gottschalk

Subjects
Physics, General Physics and Astronomy, Atomic physics, Polarization (waves)
Published
2002
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10. Diffractively Produced Charm Final States in800−GeV/cppCollisions

Author

S. Lee, D. Wesson, G. Gutierrez, B. C. Knapp, Juan C. Felix, Kyriacos Markianos, D. C. Christian, Erik Gottschalk, G. Moreno, M. C. Berisso, E. P. Hartouni, A. Gara, A. A. Wehmann, Modesto Sosa, M. H. L. S. Wang, M. N. Kreisler, and Marco A. Reyes

Subjects
Nuclear physics, Physics, Particle physics, Meson, Hadron, General Physics and Astronomy, Elementary particle, Charm (quantum number), Type (model theory), Open charm, Boson
Abstract

We report the first observation of diffractively produced open charm in 800-GeV/c pp collisions of the type pp{yields}pD{sup *}X. We measure cross sections of {sigma}{sub diff}(D{sup *+})= (0.185{+-}0.044{+-}0.054) {mu}b and {sigma}{sub diff}(D{sup *-})= (0.174{+-}0.034{+-}0.029) {mu}b. Our measurements are based on 4.3 x 10{sup 9} events recorded by FNAL E690 in the fixed-target run of 1991. We compare our results with previous fixed-target charm experiments.

Published
2001
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11. Lambda(0) polarization in 800-GeV/cpp --p(f)(Lambda0K+)

Author

J, Félix, M C, Berisso, D C, Christian, A, Gara, E E, Gottschalk, G, Gutiérrez, E P, Hartouni, B C, Knapp, M N, Kreisler, S, Lee, K, Markianos, G, Moreno, M A, Reyes, M, Sosa, M H L S, Wang, A, Wehmann, and D, Wesson

Abstract

We report results from a study of Lambda(0) polarization in the exclusive reaction pp --p(f)(Lambda0K+) at 800-GeV/c. We observe a dependence of the polarization on the Lambda0K+ invariant mass with large (+71%) positive polarization at small mass (1.63-GeV/c(2)) and large (-43%) negative polarization at large mass (2.75-GeV/c(2)). This observation confirms the result of the CERN ISR R608 experiment and extends the range over which the effect is observed. The strong dependence of the polarization on the Lambda0K+ invariant mass suggests that the origin of the polarization is closely related to the production dynamics of the diffractively produced Lambda0K+ system.

Published
2001

12. Diffractively produced charm final states in 800-GeV/c pp collisions

Author

M H, Wang, M C, Berisso, D C, Christian, J, Félix, A, Gara, E, Gottschalk, G, Gutiérrez, E P, Hartouni, B C, Knapp, M N, Kreisler, S, Lee, K, Markianos, G, Moreno, M A, Reyes, M, Sosa, A, Wehmann, and D, Wesson

Abstract

We report the first observation of diffractively produced open charm in 800-GeV/c pp collisions of the type pp--pD*X. We measure cross sections of sigma(diff)(D*+) = (0.185+/-0.044+/-0.054) (mu)b and sigma(diff)(D(*-)) = (0.174+/-0.034+/-0.029) (mu)b. Our measurements are based on 4.3x10(9) events recorded by FNAL E690 in the fixed-target run of 1991. We compare our results with previous fixed-target charm experiments.

Published
2000

15. Search for Active Neutrino Disappearance Using Neutral-Current Interactions in the MINOS Long-Baseline Experiment

Author

Adamson, P., primary, Andreopoulos, C., additional, Arms, K. E., additional, Armstrong, R., additional, Auty, D. J., additional, Ayres, D. S., additional, Backhouse, C., additional, Baller, B., additional, Barr, G., additional, Barrett, W. L., additional, Becker, B. R., additional, Belias, A., additional, Bernstein, R. H., additional, Bhattacharya, D., additional, Bishai, M., additional, Blake, A., additional, Bock, G. J., additional, Boehm, J., additional, Boehnlein, D. J., additional, Bogert, D., additional, Bower, C., additional, Buckley-Geer, E., additional, Cavanaugh, S., additional, Chapman, J. D., additional, Cherdack, D., additional, Childress, S., additional, Choudhary, B. C., additional, Cobb, J. H., additional, Coleman, S. J., additional, Culling, A. J., additional, de Jong, J. K., additional, Dierckxsens, M., additional, Diwan, M. V., additional, Dorman, M., additional, Dytman, S. A., additional, Escobar, C. O., additional, Evans, J. J., additional, Falk Harris, E., additional, Feldman, G. J., additional, Frohne, M. V., additional, Gallagher, H. R., additional, Godley, A., additional, Goodman, M. C., additional, Gouffon, P., additional, Gran, R., additional, Grashorn, E. W., additional, Grossman, N., additional, Grzelak, K., additional, Habig, A., additional, Harris, D., additional, Harris, P. G., additional, Hartnell, J., additional, Hatcher, R., additional, Heller, K., additional, Himmel, A., additional, Holin, A., additional, Hsu, L., additional, Hylen, J., additional, Irwin, G. M., additional, Ishitsuka, M., additional, Jaffe, D. E., additional, James, C., additional, Jensen, D., additional, Kafka, T., additional, Kasahara, S. M. S., additional, Kim, J. J., additional, Kim, M. S., additional, Koizumi, G., additional, Kopp, S., additional, Kordosky, M., additional, Koskinen, D. J., additional, Kotelnikov, S. K., additional, Kreymer, A., additional, Kumaratunga, S., additional, Lang, K., additional, Ling, J., additional, Litchfield, P. J., additional, Litchfield, R. P., additional, Loiacono, L., additional, Lucas, P., additional, Ma, J., additional, Mann, W. A., additional, Marchionni, A., additional, Marshak, M. L., additional, Marshall, J. S., additional, Mayer, N., additional, McGowan, A. M., additional, Meier, J. R., additional, Messier, M. D., additional, Metelko, C. J., additional, Michael, D. G., additional, Miller, W. H., additional, Mishra, S. R., additional, Moore, C. D., additional, Morfín, J., additional, Mualem, L., additional, Mufson, S., additional, Murgia, S., additional, Musser, J., additional, Naples, D., additional, Nelson, J. K., additional, Newman, H. B., additional, Nichol, R. J., additional, Nicholls, T. C., additional, Ochoa-Ricoux, J. P., additional, Oliver, W. P., additional, Ospanov, R., additional, Paley, J., additional, Paolone, V., additional, Para, A., additional, Patzak, T., additional, Pavlović, Ž., additional, Pawloski, G., additional, Pearce, G. F., additional, Peck, C. W., additional, Petyt, D. A., additional, Pittam, R., additional, Plunkett, R. K., additional, Rahaman, A., additional, Rameika, R. A., additional, Raufer, T. M., additional, Rebel, B., additional, Reichenbacher, J., additional, Rodrigues, P. A., additional, Rosenfeld, C., additional, Rubin, H. A., additional, Ryabov, V. A., additional, Sanchez, M. C., additional, Saoulidou, N., additional, Schneps, J., additional, Schreiner, P., additional, Shanahan, P., additional, Smart, W., additional, Smith, C., additional, Sousa, A., additional, Speakman, B., additional, Stamoulis, P., additional, Strait, M., additional, Tagg, N., additional, Talaga, R. L., additional, Tavera, M. A., additional, Thomas, J., additional, Thomson, M. A., additional, Thron, J. L., additional, Tinti, G., additional, Trostin, I., additional, Tsarev, V. A., additional, Tzanakos, G., additional, Urheim, J., additional, Vahle, P., additional, Viren, B., additional, Ward, D. R., additional, Watabe, M., additional, Weber, A., additional, Webb, R. C., additional, Wehmann, A., additional, West, N., additional, White, C., additional, Wojcicki, S. G., additional, Wright, D. M., additional, Yang, T., additional, Zhang, K., additional, and Zwaska, R., additional

Published
2008
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16. Testing Lorentz Invariance and CPT Conservation with NuMI Neutrinos in the MINOS Near Detector

Author

Adamson, P., primary, Andreopoulos, C., additional, Arms, K. E., additional, Armstrong, R., additional, Auty, D. J., additional, Ayres, D. S., additional, Baller, B., additional, Barr, G., additional, Barrett, W. L., additional, Becker, B. R., additional, Belias, A., additional, Bernstein, R. H., additional, Bhattacharya, D., additional, Bishai, M., additional, Blake, A., additional, Bock, G. J., additional, Boehm, J., additional, Boehnlein, D. J., additional, Bogert, D., additional, Bower, C., additional, Buckley-Geer, E., additional, Cavanaugh, S., additional, Chapman, J. D., additional, Cherdack, D., additional, Childress, S., additional, Choudhary, B. C., additional, Coleman, S. J., additional, Culling, A. J., additional, de Jong, J. K., additional, Diwan, M. V., additional, Dorman, M., additional, Dytman, S. A., additional, Escobar, C. O., additional, Evans, J. J., additional, Falk Harris, E., additional, Feldman, G. J., additional, Frohne, M. V., additional, Gallagher, H. R., additional, Goodman, M. C., additional, Gouffon, P., additional, Gran, R., additional, Grashorn, E. W., additional, Grossman, N., additional, Grzelak, K., additional, Habig, A., additional, Harris, D., additional, Harris, P. G., additional, Hartnell, J., additional, Hatcher, R., additional, Heller, K., additional, Himmel, A., additional, Holin, A., additional, Hylen, J., additional, Irwin, G. M., additional, Ishitsuka, M., additional, Jaffe, D. E., additional, James, C., additional, Jensen, D., additional, Kafka, T., additional, Kasahara, S. M. S., additional, Kim, J. J., additional, Koizumi, G., additional, Kopp, S., additional, Kordosky, M., additional, Koskinen, D. J., additional, Kreymer, A., additional, Kumaratunga, S., additional, Lang, K., additional, Ling, J., additional, Litchfield, P. J., additional, Litchfield, R. P., additional, Loiacono, L., additional, Lucas, P., additional, Ma, J., additional, Mann, W. A., additional, Marshak, M. L., additional, Marshall, J. S., additional, Mayer, N., additional, McGowan, A. M., additional, Meier, J. R., additional, Messier, M. D., additional, Metelko, C. J., additional, Michael, D. G., additional, Miller, J. L., additional, Miller, W. H., additional, Mishra, S. R., additional, Moore, C. D., additional, Morfín, J., additional, Mualem, L., additional, Mufson, S., additional, Murgia, S., additional, Musser, J., additional, Naples, D., additional, Nelson, J. K., additional, Newman, H. B., additional, Nichol, R. J., additional, Nicholls, T. C., additional, Ochoa-Ricoux, J. P., additional, Oliver, W. P., additional, Ospanov, R., additional, Paley, J., additional, Paolone, V., additional, Para, A., additional, Patzak, T., additional, Pavlović, Ž., additional, Pawloski, G., additional, Pearce, G. F., additional, Peck, C. W., additional, Petyt, D. A., additional, Pittam, R., additional, Plunkett, R. K., additional, Rahaman, A., additional, Rameika, R. A., additional, Raufer, T. M., additional, Rebel, B., additional, Reichenbacher, J., additional, Rodrigues, P. A., additional, Rosenfeld, C., additional, Rubin, H. A., additional, Sanchez, M. C., additional, Saoulidou, N., additional, Schneps, J., additional, Schreiner, P., additional, Shanahan, P., additional, Smart, W., additional, Sousa, A., additional, Speakman, B., additional, Stamoulis, P., additional, Strait, M., additional, Tagg, N., additional, Talaga, R. L., additional, Tavera, M. A., additional, Thomas, J., additional, Thompson, J., additional, Thomson, M. A., additional, Thron, J. L., additional, Tinti, G., additional, Tzanakos, G., additional, Urheim, J., additional, Vahle, P., additional, Viren, B., additional, Watabe, M., additional, Weber, A., additional, Webb, R. C., additional, Wehmann, A., additional, West, N., additional, White, C., additional, Wojcicki, S. G., additional, Yang, T., additional, Zois, M., additional, Zhang, K., additional, and Zwaska, R., additional

Published
2008
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17. Measurement of Neutrino Oscillations with the MINOS Detectors in the NuMI Beam

Author

Adamson, P., primary, Andreopoulos, C., additional, Arms, K. E., additional, Armstrong, R., additional, Auty, D. J., additional, Ayres, D. S., additional, Baller, B., additional, Barnes, P. D., additional, Barr, G., additional, Barrett, W. L., additional, Becker, B. R., additional, Belias, A., additional, Bernstein, R. H., additional, Bhattacharya, D., additional, Bishai, M., additional, Blake, A., additional, Bock, G. J., additional, Boehm, J., additional, Boehnlein, D. J., additional, Bogert, D., additional, Bower, C., additional, Buckley-Geer, E., additional, Cavanaugh, S., additional, Chapman, J. D., additional, Cherdack, D., additional, Childress, S., additional, Choudhary, B. C., additional, Cobb, J. H., additional, Coleman, S. J., additional, Culling, A. J., additional, de Jong, J. K., additional, Dierckxsens, M., additional, Diwan, M. V., additional, Dorman, M., additional, Dytman, S. A., additional, Escobar, C. O., additional, Evans, J. J., additional, Falk Harris, E., additional, Feldman, G. J., additional, Frohne, M. V., additional, Gallagher, H. R., additional, Godley, A., additional, Goodman, M. C., additional, Gouffon, P., additional, Gran, R., additional, Grashorn, E. W., additional, Grossman, N., additional, Grzelak, K., additional, Habig, A., additional, Harris, D., additional, Harris, P. G., additional, Hartnell, J., additional, Hatcher, R., additional, Heller, K., additional, Himmel, A., additional, Holin, A., additional, Hylen, J., additional, Irwin, G. M., additional, Ishitsuka, M., additional, Jaffe, D. E., additional, James, C., additional, Jensen, D., additional, Kafka, T., additional, Kasahara, S. M. S., additional, Kim, J. J., additional, Kim, M. S., additional, Koizumi, G., additional, Kopp, S., additional, Kordosky, M., additional, Koskinen, D. J., additional, Kotelnikov, S. K., additional, Kreymer, A., additional, Kumaratunga, S., additional, Lang, K., additional, Ling, J., additional, Litchfield, P. J., additional, Litchfield, R. P., additional, Loiacono, L., additional, Lucas, P., additional, Ma, J., additional, Mann, W. A., additional, Marchionni, A., additional, Marshak, M. L., additional, Marshall, J. S., additional, Mayer, N., additional, McGowan, A. M., additional, Meier, J. R., additional, Merzon, G. I., additional, Messier, M. D., additional, Metelko, C. J., additional, Michael, D. G., additional, Miller, J. L., additional, Miller, W. H., additional, Mishra, S. R., additional, Moore, C. D., additional, Morfín, J., additional, Mualem, L., additional, Mufson, S., additional, Murgia, S., additional, Musser, J., additional, Naples, D., additional, Nelson, J. K., additional, Newman, H. B., additional, Nichol, R. J., additional, Nicholls, T. C., additional, Ochoa-Ricoux, J. P., additional, Oliver, W. P., additional, Ospanov, R., additional, Paley, J., additional, Paolone, V., additional, Para, A., additional, Patzak, T., additional, Pavlović, Ž., additional, Pawloski, G., additional, Pearce, G. F., additional, Peck, C. W., additional, Peterson, E. A., additional, Petyt, D. A., additional, Pittam, R., additional, Plunkett, R. K., additional, Rahaman, A., additional, Rameika, R. A., additional, Raufer, T. M., additional, Rebel, B., additional, Reichenbacher, J., additional, Rodrigues, P. A., additional, Rosenfeld, C., additional, Rubin, H. A., additional, Ruddick, K., additional, Ryabov, V. A., additional, Sanchez, M. C., additional, Saoulidou, N., additional, Schneps, J., additional, Schreiner, P., additional, Seun, S.-M., additional, Shanahan, P., additional, Smart, W., additional, Smith, C., additional, Sousa, A., additional, Speakman, B., additional, Stamoulis, P., additional, Strait, M., additional, Symes, P., additional, Tagg, N., additional, Talaga, R. L., additional, Tavera, M. A., additional, Thomas, J., additional, Thompson, J., additional, Thomson, M. A., additional, Thron, J. L., additional, Tinti, G., additional, Trostin, I., additional, Tsarev, V. A., additional, Tzanakos, G., additional, Urheim, J., additional, Vahle, P., additional, Viren, B., additional, Ward, C. P., additional, Ward, D. R., additional, Watabe, M., additional, Weber, A., additional, Webb, R. C., additional, Wehmann, A., additional, West, N., additional, White, C., additional, Wojcicki, S. G., additional, Wright, D. M., additional, Yang, T., additional, Zois, M., additional, Zhang, K., additional, and Zwaska, R., additional

Published
2008
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18. Observation of Muon Neutrino Disappearance with the MINOS Detectors in the NuMI Neutrino Beam

Author

Michael, D. G., primary, Adamson, P., additional, Alexopoulos, T., additional, Allison, W. W. M., additional, Alner, G. J., additional, Anderson, K., additional, Andreopoulos, C., additional, Andrews, M., additional, Andrews, R., additional, Arms, K. E., additional, Armstrong, R., additional, Arroyo, C., additional, Auty, D. J., additional, Avvakumov, S., additional, Ayres, D. S., additional, Baller, B., additional, Barish, B., additional, Barker, M. A., additional, Barnes, P. D., additional, Barr, G., additional, Barrett, W. L., additional, Beall, E., additional, Becker, B. R., additional, Belias, A., additional, Bergfeld, T., additional, Bernstein, R. H., additional, Bhattacharya, D., additional, Bishai, M., additional, Blake, A., additional, Bocean, V., additional, Bock, B., additional, Bock, G. J., additional, Boehm, J., additional, Boehnlein, D. J., additional, Bogert, D., additional, Border, P. M., additional, Bower, C., additional, Boyd, S., additional, Buckley-Geer, E., additional, Bungau, C., additional, Byon-Wagner, A., additional, Cabrera, A., additional, Chapman, J. D., additional, Chase, T. R., additional, Cherdack, D., additional, Chernichenko, S. K., additional, Childress, S., additional, Choudhary, B. C., additional, Cobb, J. H., additional, Cossairt, J. D., additional, Courant, H., additional, Crane, D. A., additional, Culling, A. J., additional, Dawson, J. W., additional, de Jong, J. K., additional, DeMuth, D. M., additional, De Santo, A., additional, Dierckxsens, M., additional, Diwan, M. V., additional, Dorman, M., additional, Drake, G., additional, Drakoulakos, D., additional, Ducar, R., additional, Durkin, T., additional, Erwin, A. R., additional, Escobar, C. O., additional, Evans, J. J., additional, Fackler, O. D., additional, Falk Harris, E., additional, Feldman, G. J., additional, Felt, N., additional, Fields, T. H., additional, Ford, R., additional, Frohne, M. V., additional, Gallagher, H. R., additional, Gebhard, M., additional, Giurgiu, G. A., additional, Godley, A., additional, Gogos, J., additional, Goodman, M. C., additional, Gornushkin, Yu., additional, Gouffon, P., additional, Gran, R., additional, Grashorn, E., additional, Grossman, N., additional, Grudzinski, J. J., additional, Grzelak, K., additional, Guarino, V., additional, Habig, A., additional, Halsall, R., additional, Hanson, J., additional, Harris, D., additional, Harris, P. G., additional, Hartnell, J., additional, Hartouni, E. P., additional, Hatcher, R., additional, Heller, K., additional, Hill, N., additional, Ho, Y., additional, Holin, A., additional, Howcroft, C., additional, Hylen, J., additional, Ignatenko, M., additional, Indurthy, D., additional, Irwin, G. M., additional, Ishitsuka, M., additional, Jaffe, D. E., additional, James, C., additional, Jenner, L., additional, Jensen, D., additional, Joffe-Minor, T., additional, Kafka, T., additional, Kang, H. J., additional, Kasahara, S. M. S., additional, Kilmer, J., additional, Kim, H., additional, Kim, M. S., additional, Koizumi, G., additional, Kopp, S., additional, Kordosky, M., additional, Koskinen, D. J., additional, Kostin, M., additional, Kotelnikov, S. K., additional, Krakauer, D. A., additional, Kreymer, A., additional, Kumaratunga, S., additional, Ladran, A. S., additional, Lang, K., additional, Laughton, C., additional, Lebedev, A., additional, Lee, R., additional, Lee, W. Y., additional, Libkind, M. A., additional, Ling, J., additional, Liu, J., additional, Litchfield, P. J., additional, Litchfield, R. P., additional, Longley, N. P., additional, Lucas, P., additional, Luebke, W., additional, Madani, S., additional, Maher, E., additional, Makeev, V., additional, Mann, W. A., additional, Marchionni, A., additional, Marino, A. D., additional, Marshak, M. L., additional, Marshall, J. S., additional, Mayer, N., additional, McDonald, J., additional, McGowan, A. M., additional, Meier, J. R., additional, Merzon, G. I., additional, Messier, M. D., additional, Milburn, R. H., additional, Miller, J. L., additional, Miller, W. H., additional, Mishra, S. R., additional, Mislivec, A., additional, Miyagawa, P. S., additional, Moore, C. D., additional, Morfín, J., additional, Morse, R., additional, Mualem, L., additional, Mufson, S., additional, Murgia, S., additional, Murtagh, M. J., additional, Musser, J., additional, Naples, D., additional, Nelson, C., additional, Nelson, J. K., additional, Newman, H. B., additional, Nezrick, F., additional, Nichol, R. J., additional, Nicholls, T. C., additional, Ochoa-Ricoux, J. P., additional, Oliver, J., additional, Oliver, W. P., additional, Onuchin, V. A., additional, Osiecki, T., additional, Ospanov, R., additional, Paley, J., additional, Paolone, V., additional, Para, A., additional, Patzak, T., additional, Pavlović, Ž., additional, Pearce, G. F., additional, Pearson, N., additional, Peck, C. W., additional, Perry, C., additional, Peterson, E. A., additional, Petyt, D. A., additional, Ping, H., additional, Piteira, R., additional, Pittam, R., additional, Pla-Dalmau, A., additional, Plunkett, R. K., additional, Price, L. E., additional, Proga, M., additional, Pushka, D. R., additional, Rahman, D., additional, Rameika, R. A., additional, Raufer, T. M., additional, Read, A. L., additional, Rebel, B., additional, Reichenbacher, J., additional, Reyna, D. E., additional, Rosenfeld, C., additional, Rubin, H. A., additional, Ruddick, K., additional, Ryabov, V. A., additional, Saakyan, R., additional, Sanchez, M. C., additional, Saoulidou, N., additional, Schneps, J., additional, Schoessow, P. V., additional, Schreiner, P., additional, Schwienhorst, R., additional, Semenov, V. K., additional, Seun, S.-M., additional, Shanahan, P., additional, Shield, P. D., additional, Smart, W., additional, Smirnitsky, V., additional, Smith, C., additional, Smith, P. N., additional, Sousa, A., additional, Speakman, B., additional, Stamoulis, P., additional, Stefanik, A., additional, Sullivan, P., additional, Swan, J. M., additional, Symes, P. A., additional, Tagg, N., additional, Talaga, R. L., additional, Terekhov, A., additional, Tetteh-Lartey, E., additional, Thomas, J., additional, Thompson, J., additional, Thomson, M. A., additional, Thron, J. L., additional, Tinti, G., additional, Trendler, R., additional, Trevor, J., additional, Trostin, I., additional, Tsarev, V. A., additional, Tzanakos, G., additional, Urheim, J., additional, Vahle, P., additional, Vakili, M., additional, Vaziri, K., additional, Velissaris, C., additional, Verebryusov, V., additional, Viren, B., additional, Wai, L., additional, Ward, C. P., additional, Ward, D. R., additional, Watabe, M., additional, Weber, A., additional, Webb, R. C., additional, Wehmann, A., additional, West, N., additional, White, C., additional, White, R. F., additional, Wojcicki, S. G., additional, Wright, D. M., additional, Wu, Q. K., additional, Yan, W. G., additional, Yang, T., additional, Yumiceva, F. X., additional, Yun, J. C., additional, Zheng, H., additional, Zois, M., additional, and Zwaska, R., additional

Published
2006
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19. Search for Exotic Baryons in 800 GeVpp→pΞ±π±XReactions

Author

Christian, D. C., primary, Felix, J., additional, Gottschalk, E. E., additional, Gutierrez, G., additional, Hartouni, E. P., additional, Knapp, B. C., additional, Kreisler, M. N., additional, Moreno, G., additional, Reyes, M. A., additional, Sosa, M., additional, Wang, M. H. L. S., additional, and Wehmann, A., additional

Published
2005
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20. Λ0Polarization in800−GeV/cpp→pf(Λ0K+)

Author

Félix, J., primary, Berisso, M. C., additional, Christian, D. C., additional, Gara, A., additional, Gottschalk, E. E., additional, Gutiérrez, G., additional, Hartouni, E. P., additional, Knapp, B. C., additional, Kreisler, M. N., additional, Lee, S., additional, Markianos, K., additional, Moreno, G., additional, Reyes, M. A., additional, Sosa, M., additional, Wang, M. H. L. S., additional, Wehmann, A., additional, and Wesson, D., additional

Published
2002
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21. Diffractively Produced Charm Final States in800−GeV/cppCollisions

Author

Wang, M. H. L. S., primary, Berisso, M. C., additional, Christian, D. C., additional, Félix, J., additional, Gara, A., additional, Gottschalk, E., additional, Gutiérrez, G., additional, Hartouni, E. P., additional, Knapp, B. C., additional, Kreisler, M. N., additional, Lee, S., additional, Markianos, K., additional, Moreno, G., additional, Reyes, M. A., additional, Sosa, M., additional, Wehmann, A., additional, and Wesson, D., additional

Published
2001
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22. Spin-Parity Analysis of the Centrally ProducedKS0K±π∓System at800GeV/c

Author

Sosa, M., primary, Berisso, M. C., additional, Christian, D. C., additional, Félix, J., additional, Gara, A., additional, Gottschalk, E., additional, Gutiérrez, G., additional, Hartouni, E. P., additional, Knapp, B. C., additional, Kreisler, M. N., additional, Lee, S., additional, Markianos, K., additional, Moreno, G., additional, Reyes, M. A., additional, Wang, M., additional, Wehmann, A., additional, and Wesson, D., additional

Published
1999
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23. Study ofΛ0Polarization in Four Different ExclusiveppReactions at 27.5 GeV/c

Author

Félix, J., primary, Avilez, C., additional, Christian, D. C., additional, Church, M. D., additional, Forbush, M., additional, Gottschalk, E. E., additional, Gutierrez, G., additional, Hartouni, E. P., additional, Holmes, S. D., additional, Huson, F. R., additional, Jensen, D. A., additional, Knapp, B. C., additional, Kreisler, M. N., additional, Moreno, G., additional, Uribe, J., additional, Stern, B. J., additional, Wang, M. H. L. S., additional, Wehmann, A., additional, Wiencke, L. R., additional, and White, J. T., additional

Published
1999
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24. Partial Wave Analysis of the Centrally ProducedKSKSSystem at800GeV/c

Author

Reyes, M. A., primary, Berisso, M. C., additional, Christian, D. C., additional, Felix, J., additional, Gara, A., additional, Gottschalk, E., additional, Gutierrez, G., additional, Hartouni, E. P., additional, Knapp, B. C., additional, Kreisler, M. N., additional, Lee, S., additional, Markianos, K., additional, Moreno, G., additional, Sosa, M., additional, Wang, M. H. L. S., additional, Wehmann, A., additional, and Wesson, D., additional

Published
1998
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25. Study ofΛ0Polarization inpp→pΛ0K+π+π−π+π−at 27.5 GeV

Author

Félix, J., primary, Avilez, C., additional, Moreno, G., additional, Hartouni, E. P., additional, Jensen, D. A., additional, Kreisler, M. N., additional, Uribe, J., additional, Christian, D. C., additional, Gutierrez, G., additional, Holmes, S. D., additional, Wehmann, A., additional, Church, M. D., additional, Gottschalk, E. E., additional, Knapp, B. C., additional, Stern, B. J., additional, Wiencke, L. R., additional, Forbush, M., additional, Huson, F. R., additional, and White, J. T., additional

Published
1996
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26. Precise Measurement of theΛ0andΛ¯0Masses and a Test ofCPTInvariance

Author

Hartouni, E. P., primary, Jensen, D. A., additional, Kreisler, M. N., additional, Uribe, J., additional, Church, M. D., additional, Gottschalk, E. E., additional, Knapp, B. C., additional, Stern, B. J., additional, Wiencke, L. R., additional, Christian, D. C., additional, Gutierrez, G., additional, Holmes, S. D., additional, Wehmann, A., additional, Avilez, C., additional, Forbush, M., additional, Huson, F. R., additional, and White, J. T., additional

Published
1994
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27. Precise measurement of theΛ0and Λ¯0masses and a test ofCPTinvariance

Author

Hartouni, E. P., primary, Jensen, D. A., additional, Kreisler, M. N., additional, Uribe, J., additional, Church, M. D., additional, Gottschalk, E. E., additional, Knapp, B. C., additional, Stern, B. J., additional, Wiencke, L. R., additional, Christian, D. C., additional, Gutierrez, G., additional, Wehmann, A., additional, Avilez, C., additional, Forbush, M., additional, Huson, F. R., additional, and White, J. T., additional

Published
1994
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28. Precise Measurement of theΛ0andΛ¯0Masses and a Test ofCPTInvariance

Author

J. T. White, E. P. Hartouni, Erik Gottschalk, G. Gutierrez, L. R. Wiencke, M. D. Church, S. D. Holmes, F. R. Huson, A. A. Wehmann, D. C. Christian, J. Uribe, D.A. Jensen, C. Avilez, M. N. Kreisler, M. Forbush, B. C. Knapp, and B. J. Stern

Subjects
Physics, CPT symmetry, General Physics and Astronomy, Mathematical physics
Published
1994
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29. Differences between proton- andπ−-induced production of the charmoniumχstates

Author

P. Lukens, I. Karliner, Alan Garfinkel, S. Cihangir, W. P. Oliver, T. L. Graff, A. T. Laasanen, George Alverson, W.-G. Li, C. Davis, Virgil E Barnes, J. R. Wilson, L. J. Koester, S. H. Pordes, J. N. Bellinger, T. Kirk, D. A. Bauer, A. Wehmann, R. D. Sard, R. K. Thornton, L. Holloway, J. W. Cooper, G. Ascoli, and J. K. Simmons

Subjects
Physics, Particle physics, Muon, Meson, Proton, Branching fraction, Hadron, General Physics and Astronomy, Quarkonium, Nuclear physics, Particle decay, Pair production, High Energy Physics::Experiment, Nuclear Experiment
Abstract

The charmonium chi states are observed in both ..pi../sup -/ and p Be interactions near 200 GeV/c via their radiative decay into J/psi. The chi(3510) and chi(3555) are produced with roughly equal cross sections in ..pi../sup -/ collisions while the chi(3555) dominates in p collisions. Simple gluon fusion can account for chi production with incident protons but additional mechanisms are needed for incident ..pi../sup -/.

Published
1985
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30. Total Cross Sections ofπ±andK±on Protons and Deuterons between 50 and 200 GeV/c

Author

W. F. Baker, I. H. Chiang, R. Rubinstein, A. A. Wehmann, D.C. Rahm, P.O. Mazur, O.D. Fackler, P.M. Mockett, P. F. M. Koehler, K. K. Li, T. F. Kycia, G. Giacomelli, K. P. Pretzl, R. L. Cool, D. P. Eartly, and A. S. Carroll

Subjects
Nuclear physics, Physics, Momentum (technical analysis), Cross section (physics), Deuterium, Proton, Antiproton, Nuclear Theory, Physics::Accelerator Physics, General Physics and Astronomy, High Energy Physics::Experiment, Nuclear Experiment
Abstract

Proton and antiproton total cross sections on protons and deuterons have been measured at 50, 100, 150, and 200 GeV/c. The proton cross sections rise with increasing momentum. Antiproton cross sections fall with increasing momentum, but the rate of fall decreases between 50 and 150 GeV/c, and from 150 to 200 GeV/c there is little change in cross section.

Published
1974
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31. Direct Measurement of the Negative-Kaon Form Factor

Author

J. A. Poirier, T.E. Toohig, J. M. Hauptman, C. A. Rey, J. Kubic, E.N. Tsyganov, V.D. Riabtsov, E. B. Dally, T.S. Nigmanov, A.B. Watson, A.S. Vodopianov, Andrew Beretvas, P. D. Rapp, D. H. Stork, J. C. Tompkins, A. Grigorian, Z. Guzik, James T. Volk, P. F. Shepard, and A. A. Wehmann

Subjects
Nuclear physics, Physics, Scattering cross-section, Elastic scattering, Cross section (physics), Scattering, Nuclear Theory, Form factor (quantum field theory), General Physics and Astronomy, High Energy Physics::Experiment, Radius, Electron, Nuclear Experiment
Abstract

The electromagnetic form factor of the negative kaon has been measured by direct scattering of 250-GeV/c kaons from the stationary electrons of a liquid-hydrogen target The deviation of the measured elastic scattering cross section from the point cross section may be characterized by a root-mean-square kaon radius of 〈rK−2〉12=0.53±0.05 fm.

Published
1980
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32. Direct Measurement of theπ−Form Factor

Author

Arlene Lennox, I. Ioan, D.J. Drickey, C. A. Rey, P. F. Shepard, A. S. Vodopianov, J. M. Hauptman, E. B. Dally, J. A. Poirier, T.S. Nigmanov, C. F. May, D. H. Stork, T.E. Toohig, E.N. Tsyganov, R. J. Wojslaw, A. A. Wehmann, and J. C. Tompkins

Subjects
Physics, Elastic scattering, Antiparticle, Particle physics, Meson, Hadron, Form factor (quantum field theory), General Physics and Astronomy, Elementary particle, Pion, Charge radius, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment
Abstract

We have measured the electromagnetic form factor of the charged pion by direct scattering of 100-GeV/c ${\ensuremath{\pi}}^{\ensuremath{-}}$ from stationary electrons in a liquid-hydrogen target at Fermilab. The deviations from the pointlike pion-scattering cross section may be characterized by a root-mean-square charge radius for the pion of ${〈{{\mathcal{r}}_{\ensuremath{\pi}}}^{2}〉}^{\frac{1}{2}}=0.56\ifmmode\pm\else\textpm\fi{}0.04$ F.

Published
1977
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33. Elastic-Scattering Measurement of the Negative-Pion Radius

Author

T.S. Nigmanov, A.S. Vodopianov, P. F. Shepard, T.E. Toohig, E.N. Tsyganov, E. B. Dally, P. D. Rapp, J. Kubic, J. C. Tompkins, Z. Guzik, J. M. Hauptman, A. Grigorian, A. A. Wehmann, James T. Volk, J. A. Poirier, A.B. Watson, C. A. Rey, V. D. Riabtsoy, Andrew Beretvas, and D. H. Stork

Subjects
Nuclear physics, Physics, Elastic scattering, Pion, Annihilation, Meson, Hadron, General Physics and Astronomy, High Energy Physics::Experiment, Elementary particle, Radius, Electron, Nuclear Experiment
Abstract

A new measurement of the elastic scattering of 250-GeV/c negative pions by electrons provides form-factor results from 0.0368

Published
1982
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35. Photoproduction ofωMesons from Hydrogen and Deuterium

Author

E. H. Thorndike, C. K. Lee, F. Lobkowicz, H. J. Behrend, M. E. Nordberg, and A. A. Wehmann

Subjects
Physics, Nuclear physics, Particle physics, Meson, Deuterium, Hydrogen, chemistry, General Physics and Astronomy, chemistry.chemical_element, Omega
Published
1971
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36. Determination of theω→π+π−Decay Amplitude from Photoproduction

Author

E. H. Thorndike, C. K. Lee, A. A. Wehmann, H. J. Behrend, M. E. Nordberg, and F. Lobkowicz

Subjects
Phase difference, Physics, Particle physics, Amplitude, Branching fraction, General Physics and Astronomy, Production (computer science), Omega
Abstract

Interference between ${\ensuremath{\rho}}^{0}$ and $\ensuremath{\omega}$ photoproduced from carbon, aluminum, and lead has been studied in the $2\ensuremath{\pi}$ decay mode. The branching ratio $\frac{(\ensuremath{\omega}\ensuremath{\rightarrow}2\ensuremath{\pi})}{(\ensuremath{\omega}\ensuremath{\rightarrow}3\ensuremath{\pi})}$ is 2.8 \ifmmode\pm\else\textpm\fi{} 0.6%. The phase difference between the decay amplitudes $\ensuremath{\omega}\ensuremath{\rightarrow}2\ensuremath{\pi}$ and ${\ensuremath{\rho}}^{0}\ensuremath{\rightarrow}2\ensuremath{\pi}$ is 63\ifmmode^\circ\else\textdegree\fi{} \ifmmode\pm\else\textpm\fi{} 16\ifmmode^\circ\else\textdegree\fi{}.

Published
1971
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38. Muon-Pair Decay Modes of the Vector Mesons

Author

A. Wehmann, Richard Wilson, C. M. Hoffman, E. Engels, W. A. Blanpied, P. G. Innocenti, D. G. Stairs, D.J. Drickey, and L. N. Hand

Subjects
Nuclear physics, Momentum, Physics, Muon, Pion, Meson, General Physics and Astronomy, Resonance, Nucleon
Published
1967
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39. Observation of Muon Pairs Produced by High-Energy NegativeπMesons

Author

C. M. Hoffman, P. G. Innocenti, Richard Wilson, W. A. Blanpied, L. N. Hand, D.J. Drickey, A. Wehmann, E. Engels, and D. G. Stairs

Subjects
Nuclear physics, Momentum, Physics, Particle physics, Pair production, Muon, Pion, Meson, Pi, General Physics and Astronomy, Neutron, Resonance (particle physics)
Published
1966
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43. Total Cross Sections ofπ±andK±on Protons and Deuterons between 50 and 200 GeV/c

Author

Carroll, A. S., primary, Chiang, I. -H., additional, Kycia, T. F., additional, Li, K. K., additional, Mazur, P. O., additional, Mockett, P., additional, Rahm, D. C., additional, Rubinstein, R., additional, Baker, W. F., additional, Eartly, D. P., additional, Giacomelli, G., additional, Koehler, P. F. M., additional, Pretzl, K. P., additional, Wehmann, A. A., additional, Cool, R. L., additional, and Fackler, O., additional

Published
1974
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44. Differences between proton- andπ−-induced production of the charmoniumχstates

Author

Bauer, D. A., primary, Graff, T. L., additional, Lukens, P. T., additional, Wilson, J. R., additional, Alverson, G. O., additional, Ascoli, G., additional, Barnes, V. E., additional, Bellinger, J. N., additional, Cihangir, S., additional, Cooper, J. W., additional, Davis, C., additional, Garfinkel, A. F., additional, Holloway, L. E., additional, Karliner, Inga, additional, Kirk, T. B. W., additional, Koester, L. J., additional, Laasanen, A. T., additional, Li, W.-G., additional, Oliver, W. P., additional, Pordes, S. H., additional, Sard, R. D., additional, Simmons, J. K., additional, Thornton, R. K., additional, and Wehmann, A. A., additional

Published
1985
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45. Direct Measurement of the Negative-Kaon Form Factor

Author

Dally, E. B., primary, Hauptman, J. M., additional, Kubic, J., additional, Stork, D. H., additional, Watson, A. B., additional, Guzik, Z., additional, Nigmanov, T. S., additional, Riabtsov, V. D., additional, Tsyganov, E. N., additional, Vodopianov, A. S., additional, Beretvas, A., additional, Grigorian, A., additional, Tompkins, J. C., additional, Toohig, T. E., additional, Wehmann, A. A., additional, Poirier, J. A., additional, Rey, C. A., additional, Volk, J. T., additional, Rapp, P. D., additional, and Shepard, P. F., additional

Published
1980
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46. Elastic-Scattering Measurement of the Negative-Pion Radius

Author

Dally, E. B., primary, Hauptman, J. M., additional, Kubic, J., additional, Stork, D. H., additional, Watson, A. B., additional, Guzik, Z., additional, Nigmanov, T. S., additional, Riabtsoy, V. D., additional, Tsyganov, E. N., additional, Vodopianov, A. S., additional, Beretvas, A., additional, Grigorian, A., additional, Tompkins, J. C., additional, Toohig, T. E., additional, Wehmann, A. A., additional, Poirier, J. A., additional, Rey, C. A., additional, Volk, J. T., additional, Rapp, P. D., additional, and Shepard, P. F., additional

Published
1982
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47. Direct Measurement of theπ−Form Factor

Author

Dally, E. B., primary, Drickey, D. J., additional, Hauptman, J. M., additional, May, C. F., additional, Stork, D. H., additional, Poirier, J. A., additional, Rey, C. A., additional, Wojslaw, R. J., additional, Shepard, P. F., additional, Lennox, A. J., additional, Tompkins, J. C., additional, Toohig, T. E., additional, Wehmann, A. A., additional, Ioan, I. X., additional, Nigmanov, T. S., additional, Tsyganov, E. N., additional, and Vodopianov, A. S., additional

Published
1977
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50. Muon-Pair Decay Modes of the Vector Mesons

Author

Wehmann, A., primary, Engels, E., additional, Hoffman, C. M., additional, Innocenti, P. G., additional, Wilson, Richard, additional, Blanpied, W. A., additional, Drickey, D. J., additional, Hand, L. N., additional, and Stairs, D. G., additional

Published
1967
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