Abstract
The polarization parameter in the reactions π− p→ηn and π− p→η′n at 40 GeV/c with −t ranging from 0 to 2.6 (GeV/c)2 and 1.0 (GeV/c)2, respectively, was measured in experiments using a propanediol polarized target. Only gamma particles from the neutral meson decay were detected. The polarization parameter of the first reaction turns out to be negative in a widet interval (0.05<−t<1.6 (GeV/c)2) and probably changes its sign at larger values oft. The average value of the polarization parameter of the second reaction is equal to −17±8)% in the region 0.05<−t<0.5 (GeV/c)2.
Similar content being viewed by others
References
I.A. Avvakumov et al.: Prepr. IHEP 82-98, Serpukhov, 1982; aIP Conf. Proc. No. 95, p. 118, 1982
A.N. Vasiliev, V.L. Solovianov: Proc. of 1-st Int. Workshop on Spin Phenomena in High Energy Physics, p. 60. Serpukhov, 1983
D.D. Drobnic et al.: Phys. Rev. Lett.20, 274 (1968)
P. Bonamy et al.: Nucl. Phys.B16, 335 (1970)
P. Bonamy et al.: Nucl. Phys.B 52, 392 (1973)
Yu.D. Prokoshkin: Proc. of 2nd ICFA Workshop on Possib. and Limit. of Accelerators an Detectors, p. 405. Les Diablerets, Switzerland, 1979; F. Binon et al.: Z. Phys. C—Particles and Field9, 109 (1981); F. Binon et al.: Nucl. Instrum. Methods188, 507 (1981)
I.A. Avvakumov et al.: Prepr. IHEP 82-49, Serpukhov, 1982
V.D. Apokin et al.: Nucl. Phys.B 255, 253 (1985)
A.N. Vasiliev et al.: Prepr. IHEP 82-29, Serpukhov, 1982; IHEP 82-30, Serpukhov, 1982; IHEP 85-91, Serpukhov, 1985
V.D. Apokin et al.: J. Nucl. Phys. (Sov.)36, 1191 (1982)
W.D. Apel et al.: Nucl. Phys.B 152, 1 (1979)
W.D. Apel et al.: Phys. Lett.83B, 131 (1979)
Yu.I. Arestov, S.B. Nurushev: J. Nucl. Phys. (Sov.)40, 204 (1984)
B.Z. Kopeliovich: QCD effects in hadron-hadron interactions. XX Winter school, LINP, Leningrad, 1985
M. Saleem, F. Aleem: Prepr. CHEP-PU-112-83, Lahore, 1983
S.M. Troshin, N.E. Tyurin: Contributed Paper to the 6th Int. Symp. on Polariz. Phenomena in Nuclear Physics, Osaka, 1985
L.L. Jenkovszky, B.V. Struminsky: Prepr. ITP-83-121E, Kiev, 1983
A. Krzywicki, J. Tran Thanh Van: Lett. Nuovo Cimento2, 249 (1969)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Apokin, V.D., Arestov, Y.I., Avyakumov, I.A. et al. Polarization parameters in the reactions π− p ↑→ηn and π− p ↑→η′n at 40 GeV/c. Z. Phys. C - Particles and Fields 35, 173–179 (1987). https://doi.org/10.1007/BF01408446
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01408446