Study of {Lambda}{sup 0} polarization in {ital pp}{r_arrow}{ital p}{Lambda}{sup 0}{ital K}{sup +}{pi}{sup +}{pi}{sup {minus}}{pi}{sup +}{pi}{sup {minus}} at 27.5 GeV

Journal Article · Mon Jan 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.22· OSTI ID:277373

Felix, J; Avilez, C; Moreno, G ^[1]; Hartouni, E P; Jensen, D A; Kreisler, M N; Uribe, J ^[2]; Christian, D C; Gutierrez, G; Holmes, S D; Wehmann, A ^[3]; Church, M D; Gottschalk, E E; Knapp, B C; Stern, B J; Wiencke, L R ^[4]; Forbush, M; Huson, F R; White, J T ^[5]

---

1. Instituto de Fisica, Universidad de Guanajuato, Leon, Guanajuato 37000 (Mexico)
2. Department of Physics and Astronomy, University of Massachusetts, Amherst, Massachusetts 01003 (United States)
3. Fermilab, Batavia, Illinois 60510 (United States)
4. Nevis Laboratories, Columbia University, Irvington, New York 10533 (United States)
5. Department of Physics, Texas A&M University, College Station, Texas 77843 (United States)

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.}

• DOE Contract Number: AC02-76CH03000; AS05-87ER40356
• OSTI ID: 277373
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 1 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CORRELATIONS
GEV RANGE 10-100
HYDROGEN 1 TARGET
KAONS PLUS
LAMBDA BARYONS
PIONS MINUS
PIONS PLUS
POLARIZATION
PROTON-PROTON INTERACTIONS
PROTONS
TRANSVERSE MOMENTUM