Ξ0 and Ξ̄0 polarization measurements at 800GeV/c

E. Abouzaid, A. Alavi-Harati, T. Alexopoulos, M. Arenton, A. R. Barker, L. Bellantoni, A. Bellavance, E. Blucher, G. J. Bock, S. Bright, E. Cheu, R. Coleman, M. D. Corcoran, B. Cox, A. R. Erwin, C. O. Escobar, R. Ford, A. Glazov, A. Golossanov, R. A. GomesP. Gouffon, K. Hanagaki, Y. B. Hsiung, H. Huang, D. A. Jensen, R. Kessler, K. Kotera, A. Ledovskoy, P. L. McBride, E. Monnier, K. S. Nelson, H. Nguyen, R. Niclasen, H. Ping, V. Prasad, X. R. Qi, E. J. Ramberg, R. E. Ray, M. Ronquest, T. Rooker, E. Santos, J. Shields, W. Slater, D. E. Smith, N. Solomey, E. C. Swallow, P. A. Toale, R. Tschirhart, C. Velissaris, Y. W. Wah, J. Wang, H. B. White, J. Whitmore, M. Wilking, B. Winstein, R. Winston, E. T. Worcester, M. Worcester, T. Yamanaka, E. D. Zimmerman, R. F. Zukanovich

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The polarization of Ξ0 and Ξ̄0 hyperons produced by 800GeV/c protons on a BeO target at a fixed targeting angle of 4.8 mrad is measured by the KTeV experiment at Fermilab. Our result of 9.7% for Ξ0 polarization shows no significant energy dependence when compared to a result obtained at 400GeV/c production energy and at twice our targeting angle. The polarization of the Ξ̄0 is measured for the first time and found to be consistent with zero. We also examine the dependence of polarization on production pt.

Original languageEnglish (US)
Article number012005
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume75
Issue number1
DOIs
StatePublished - Jan 29 2007

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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    Abouzaid, E., Alavi-Harati, A., Alexopoulos, T., Arenton, M., Barker, A. R., Bellantoni, L., Bellavance, A., Blucher, E., Bock, G. J., Bright, S., Cheu, E., Coleman, R., Corcoran, M. D., Cox, B., Erwin, A. R., Escobar, C. O., Ford, R., Glazov, A., Golossanov, A., ... Zukanovich, R. F. (2007). Ξ0 and Ξ̄0 polarization measurements at 800GeV/c. Physical Review D - Particles, Fields, Gravitation and Cosmology, 75(1), [012005]. https://doi.org/10.1103/PhysRevD.75.012005