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42 results on '"Gottschalk, E. E."'

1. Search for Exotic Baryons in 800 GeV pp (rtarrow) pXiPiX

Author

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

Subjects
High Energy Physics - Experiment
Abstract

We report the results of a high-statistics, sensitive search for narrow baryon resonances decaying to $\Xi^-\pi^-$, $\Xi^-\pi^+$, $\bar{\Xi}^+\pi^-$, and $\bar{\Xi}^+\pi^+$. The only resonances observed are the well known $\Xi^0(1530)$ and $\bar{\Xi^0}(1530)$. No evidence is found for a state near 1862 MeV, previously reported by NA49\cite{NA49}. 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 $\Xi^0(1530)\to\Xi^-\pi^+$. We find similarly restrictive upper limits for an enhancement at 1862 MeV in the $\Xi^-\pi^+$, $\bar{\Xi}^+\pi^-$, and $\bar{\Xi}^+\pi^+$ mass spectra., Comment: Submitted to PRL

Published
2005
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2. Performance of prototype BTeV silicon pixel detectors in a high energy pion beam

Author

Appel, J. A., Artuso, M., Butler, J. N., Cancelo, G., Cardoso, G., Cheung, H., Chiodini, G., Christian, D. C., Colautti, A., Coluccia, R., Di Corato, M., Gottschalk, E. E., Hall, B. K., Hoff, J., Kasper, P. A., Kutschke, R., Kwan, S. W., Mekkaoui, A., Menasce, D., Newsom, C., Sala, S., Yarema, R., Wang, J. C., and Zimmerman, S.

Subjects
High Energy Physics - Experiment
Abstract

The silicon pixel vertex detector is a key element of the BTeV spectrometer. Sensors bump-bonded to prototype front-end devices were tested in a high energy pion beam at Fermilab. The spatial resolution and occupancies as a function of the pion incident angle were measured for various sensor-readout combinations. The data are compared with predictions from our Monte Carlo simulation and very good agreement is found., Comment: 24 pages, 20 figures

Published
2001
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3. Beam Test of BTeV Pixel Detectors

Author

Wang, J. C., Appel, J. A., Artuso, M., Butler, J. N., Cancelo, G., Cardoso, G., Cheung, H., Chiodini, G., Christian, D. C., Colautti, A., Coluccia, R., Di Corato, M., Gottschalk, E. E., Hall, B. K., Hoff, J., Kasper, P. A., Kutschke, R., Kwan, S. W., Mekkaoui, A., Menasce, D., Newsom, C., Sala, S., and Zimmermann, R. Yarema S.

Subjects
High Energy Physics - Experiment
Abstract

The silicon pixel vertex detector is one of the key elements of the BTeV spectrometer. Detector prototypes were tested in a beam at Fermilab. We report here on the measured spatial resolution as a function of the incident angles for different sensor-readout electronics combinations. We compare the results with predictions from our Monte Carlo simulation., Comment: 7 pages, 5 figures, Invited talk given by J.C. Wang at "Vertex 2000, 9th International Workshop on Vertex Detectors", Michigan, Sept 10-15, 2000. To be published in NIM A

Published
2000
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4. Beam Test Results of the BTeV Silicon Pixel Detector

Author

Chiodini, G., Appel, J. A., Artuso, M., Butler, J. N., Cardoso, G., Cheung, H., Christian, D. C., Colautti, A., Coluccia, R., Di Corato, M., Gottschalk, E. E., Hall, B. K., Hoff, J., Kasper, P. A., Kutschke, R., Kwan, S. W., Mekkaoui, A., Menasce, D., Newsom, C., Sala, S., Yarema, R., Wang, J. C., and Zimmermann, S.

Subjects
High Energy Physics - Experiment
Abstract

The results of the BTeV silicon pixel detector beam test carried out at Fermilab in 1999-2000 are reported. The pixel detector spatial resolution has been studied as a function of track inclination, sensor bias, and readout threshold., Comment: 8 pages of text, 8 figures, Proceedings paper of Pixel 2000: International Workshop on Semiconductor Pixel Detectors for Particles and X-Rays, Genova, June 5-8, 2000

Published
2000
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6. PARTICLES AND FIELDS: Proceedings of the XIII Mexican School of Particles and Fields

Author

Félix, J., primary, Berisso, M. C., additional, Christian, D. C., additional, Gara, A., additional, Gottschalk, E. 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, Reyes, M. A., additional, Wang, M. H. L. S., additional, Wehmann, A., additional, and Wesson, D., additional

Published
2009
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7. $\Lambda^0$ Polarization as function of the $Lambda^0 K^+$ invariant mass in $pp\rightarrow p \Lambda^0 K^+ (\pi^+\pi^-)^N$, $N=1,2,3,4,5$ at 27.5 GeV

Author

Felix, Julian, primary, Christian, David Charles, 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, Uribe, J., additional, Stern, B. J., additional, Wang, M., additional, Wehmann, A., additional, Wiencke, L. R., additional, and White, J. T., additional

Published
2007
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8. Λ0 Polarization In pp→p[sub f]p[sub s]Λ[sup 0]anti]-Λ[sup 0] At 800-GeV/c

Author

Castorena, J., primary, Félix, J., additional, 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, Wang, M. H. L. S., additional, Wehmann, A., additional, and Wesson, D., additional

Published
2007
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10. Λ0 POLARIZATION IN pp → pΛ0K+(π+π-)5 AT 27.5 GeV

Author

FÉLIX, J., primary, 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, 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
2006
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11. 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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12. Λ0 POLARIZATION IN pp → pΛ0K+ (π+π−)5 AT 27.5 GeV

Author

FÉLIX, J., primary, 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, 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
2005
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13. Λ0 Polarization in Exclusive pp Reactions From the FNAL e690 Experiment.

Author

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

Subjects
POLARIZATION (Nuclear physics), POLARIZED beams (Nuclear physics), POLARIZED targets (Nuclear physics), BETA ray polarization, RADIATION measurements, PARTICLES (Nuclear physics)
Abstract

It is an experimental evidence that all baryons are created polarized from unpolarized p—nucleus collisions. So far, the origin of this polarization remains unexplained in spite of the experimental evidences accumulated in the past thirty years. Up to these days, Λ0 is the most studied baryon for polarization, for it is copiously produced in p—nucleus collisions at the energies of the principal high energy physics accelerators of the world. This paper is an overview of the experimental evidences accumulated on the polarization of Λ0 from unpolarized exclusive pp collisions as function of xF, PT, and M(Λ0K+) in the past fifteen years inside Fermilab e690 experiment, in the particular reactions pp→pΛ0K0π+, pp→ppΛ0Λ-0, pp→pΛ0K+, produced at 800 GeV. [ABSTRACT FROM AUTHOR]

Published
2009
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14. Exotic baryon searches in 800 GeV/c pp → pX.

Author

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

Subjects
BARYON resonance, BARYONS, HADRONS, QUARKS, PARTICLES (Nuclear physics), SPECTROMETERS, SPECTRUM analysis instruments
Abstract

We report the results of the search for the pentaquark candidates Θ(1540) and [cap_xi](1862) using data from Fermilab experiment E690 in the reaction pp → pX at 800 GeV/c. We find no evidence for narrow baryon resonances near 1862 MeV decaying to [cap_xi]π. Also, we find no evidence of a narrow resonance near 1540 MeV decaying to pKs0. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2006
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15. Λ0 POLARIZATION IN pp → pΛ0K+(π+π-)5 AT 27.5 GeV.

Author

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

Subjects
PROTON-proton interactions, POLARIZATION (Nuclear physics), LIQUID hydrogen, BARYONS
Published
2006

16. 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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17. Preliminary results of the analysis of the centrally produced [lowercase_phi_synonym][lowercase_phi_synonym] system.

Author

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

Subjects
SCATTERING amplitude (Physics), RESONANCE, ELECTRONS, MESONS, HADRONS
Abstract

We present preliminary results of the analysis of the centrally produced φφ system at 800 GeV/c in the reaction pp → Pslow (φφ)Pfast. A partial wave analysis of the data up to 2.6 GeV/c² shows that three waves with JPC LS = 2++02 and with different Jz and reflectivity are needed to describe the data. A fit to the wave amplitudes using Jost functions gives two resonances, one above and one below the φφ threshold. The resonance above threshold has a Breit­Wigner structure with MR = 2.243 ± 0.015(stat) ± 0.010(syst) GeV and ΓR = 0.368 ± 0.033(stat) ± 0.030(syst) GeV. [ABSTRACT FROM AUTHOR]

Published
2004
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18. FNAL-E690: Charm, Light Meson, and Baryon Polarization Studies.

Author

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

Subjects
POLARIZATION of electromagnetic waves, CHARM particles, BARYON resonance, MESON spectroscopy, HADRON spectroscopy
Abstract

We report physics results of charm diffractive production, light meson spectroscopy, and baryon polarization, from studies carried out with data from experiment E690 of Fermilab. [ABSTRACT FROM AUTHOR]

Published
2003

19. Preliminary Results of a PWA of the Centrally Produced [lowercase_phi_synonym][lowercase_phi_synonym] System.

Author

Reyes, M. A., Berisso, M. C., Christian, D. C., Felix, J., Gara, A., Gottschalk, E. E., Gutie´rrez, G., Hartouni, E. P., Knapp, B. C., Kreisler, M. N., Lee, S., Markianos, K., Moreno, G., Wang, M. H. L. S., Wehman, A., and Wesson, D.

Subjects
NUCLEAR cross sections, NUCLEAR reactions
Abstract

We present preliminary results of a Partial Wave Analysis of the centrally produced φφ system at 800 GeV/c in the reaction pp → p[sub slow] (φφ) p[sub fast]. Our preliminary results with one and two M = 0 waves, indicate that most of the cross section can be described by two waves, with J[sup PC]LS[sup n] = 2[sup ++]02[sup -1], 0[sup ++]00[sup -1]. [ABSTRACT FROM AUTHOR]

Published
2002

20. Λ[sup 0] Polarization in pp→p{Λ[sup 0]K[sup +]} at 800 GeV/c.

Author

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

Subjects
BARYONS, POLARIZATION (Nuclear physics), PARTICLES (Nuclear physics)
Abstract

We present some preliminary measurements of Λ[sup 0] polarization, in the final state pp → p{Λ[sup 0]K[sup +]) created at 800 GeV/c, as a function of P[sub T], x[sub F], and the diffractive mass of the object {Λ[sup 0]K[sup +]}. [ABSTRACT FROM AUTHOR]

Published
2000

21. Observation of the centrally produced &fgr;&fgr; system at 800 GeV/c.

Author

Reyes, M. A., Berisso, M. C., Christian, D. C., Felix, J., Gara, A., Gottschalk, E. E., Gutie´rrez, G., Hartouni, E. P., Knapp, B. C., Kreisler, M. N., Lee, S., Markianos, K., Moreno, G., Wang, M. H. L. S., Wehman, A., and Wesson, D.

Subjects
GLUONS, PARTICLES (Nuclear physics), SPECTROMETERS
Abstract

We present evidence of the observation of the centrally produced φφ system at 800 GeV/c in the reaction pp → P[sub slow] (φφ)P[sub fast]. A clear bump is observed over low φK[sup +]K[sup -] and K[sup +]K[sup -]K[sup +]K[sup -] background. Statistics are comparable to those previously obtained in φ[sup -]p interactions, where three 2[sup ++] waves were found to comprise all cross section. [ABSTRACT FROM AUTHOR]

Published
2000

22. 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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23. Precision measurement of the Σ0 hyperon mass

Author

Wang, M. H. L. S., primary, Hartouni, E. P., 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, Felix, J., additional, Moreno, G., additional, Forbush, M., additional, Huson, F. R., additional, and White, J. T., additional

Published
1998
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24. Λ[sup 0] polarization in exclusive pp reactions 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
1998
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25. Study of Λ0 polarization in exclusive pp reactions 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
1998
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26. Precise measurement of theΣ0mass

Author

Wang, M. H. L. S., primary, Hartouni, E. P., 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, Félix, J., additional, Moreno, G., additional, Forbush, M., additional, Huson, F. R., additional, and White, J. T., additional

Published
1997
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27. Hyperon production in 28 GeV/cproton-proton interactions

Author

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

Published
1996
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28. Partial wave analysis of the K0sK±π∓ system

Author

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

Published
1996
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29. 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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30. Pion-pion correlations at low relative momentum produced inp−pcollisions at 27.5 GeV/c

Author

Uribe, J., primary, Hartouni, E. P., additional, Jensen, D. A., additional, Kreisler, M. N., additional, Church, M. D., additional, Gottschalk, E. E., additional, Knapp, B. C., additional, Sippach, W., 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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31. 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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32. 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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33. Observation of Coulomb effects in production ofπ+π−,pπ−, andK+K−pairs inppcollisions at 27.5 GeV/c

Author

Wiencke, L. R., primary, Church, M. D., additional, Gottschalk, E. E., additional, Hylton, R. A., additional, Knapp, B. C., additional, Sippach, W., additional, Stern, B. J., additional, Hartouni, E. P., additional, Jensen, D. A., additional, Klima, B., additional, Kreisler, M. N., additional, Rabin, M. S. Z., additional, Strait, J. B., additional, Uribe, J., 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
1992
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35. Λ0 polarization in exclusive pp reactions at 27.5 GeV/c.

Author

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

Published
1998
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36. Precision measurement of the Σ0 hyperon mass.

Author

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

Published
1998
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37. Λ0 POLARIZATION IN pp → pΛ0K+(π+π-)5 AT 27.5 GeV.

Author

FÉLIX, J., CHRISTIAN, D. C., CHURCH, M. D., FORBUSH, M., GOTTSCHALK, E. E., GUTIERREZ, G., HARTOUN, E. P., HOLMES, S. D., HUSON, F. R., JENSEN, D. A., KNAPP, B. C., KREISLER, M. N., URIBE, J., STERN, B. J., WANG, M. H. L. S., WEHMANN, A., WIENCKE, L. R., and WHITE, J. T.

Subjects
MONTE Carlo method, PARTICLES (Nuclear physics), NUCLEAR spin polarization, ELECTRON beams, DISTRIBUTION (Probability theory)
Published
2005

39. Λ0 Polarization In pp→pfpsΛ0anti-Λ0 At 800-GeV/c.

Author

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

Subjects
POLARIZATION (Nuclear physics), ANGULAR distribution (Nuclear physics), PROTONS, DEPENDENCE (Statistics), LAMBDA algebra, QUANTUM field theory
Abstract

The preliminary results of a Λ0 and anti-Λ0 polarization study as functions of the M(Λ-bΛ), XF and their corresponding PT are reported in this work. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2007
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41. Lambda(0) polarization in 800-GeV/cpp --> p(f)(Lambda0K+).

Author

Félix J, Berisso MC, Christian DC, Gara A, Gottschalk EE, Gutiérrez G, Hartouni EP, Knapp BC, Kreisler MN, Lee S, Markianos K, Moreno G, Reyes MA, Sosa M, Wang MH, Wehmann A, and Wesson D

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
2002
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42. An antigen capture test for the detection of cattle viremic with bovine viral diarrhoea virus--a comparison with BVD virus isolation from buffy coat cells in bovine kidney cells.

Author

Gottschalk EE, Greiser-Wilke I, Frey HR, Liess B, and Moennig V

Subjects
Animals, Cattle, Cells, Cultured, Diarrhea Viruses, Bovine Viral immunology, Immunoenzyme Techniques, Viremia diagnosis, Antigens, Viral blood, Bovine Virus Diarrhea-Mucosal Disease diagnosis, Diarrhea Viruses, Bovine Viral isolation & purification, Viremia veterinary
Abstract

An antigen capture enzyme immunoassay (EIA) for the detection of bovine viral diarrhoea (BVD) viral antigen in peripheral blood lymphocytes of cattle was used for the screening of 241 animals. The test used a monoclonal antibody directed against a conserved antigenic domain of a nonstructural protein (p125/p80) of pestiviruses for antigen capture. Bound antigen was detected with a pestivirus-specific polyclonal peroxidase conjugate. In parallel the samples were analysed by routine virus isolation procedures based on cell culture. Virus isolation and antigen capture EIA were positive in 54 cases. The latter test scored one additional sample.

Published
1992
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