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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.

3 data tables

Table 1

Table 2

Table 3

Upper Limit of B0 anti-B0 Mixing in e+ e- Annihilation at 29-GeV

Schaad, T. ; Nelson, M.E. ; Abrams, G. ; et al.

Phys.Lett.B 160 (1985) 188-192, 1985.

Inspire Record 214576 DOI 10.17182/hepdata.38117

None

1 data table

Table 1

Pt of the leptons is determined relative to the thrust axis. B-DECAY, C-DECAY, C-SECONDARY and BKG are corresponded to fractions of leptons originationg from primary BQ deacy, primary CQ decay, secondary decay, and from background.

OBSERVATION OF POLARIZATION IN REACTION pi- p ---> eta n AT 40-GeV/c

Apokin, V.D. ; Avvakumov, I.A. ; Borisov, N.S. ; et al.

BNL Spin Sympos.1982:118, 1982.

Inspire Record 178780 DOI 10.17182/hepdata.41130

None

1 data table

Table 1

No description provided.

K- d interactions at 5.5 gev/c - sigma-+ pi+- pi-(pi0), sigma- k+, k- and k- pi- p final states in which a hyperon is produced

Kropac, W. ; Ammar, R. ; Davis, R. ; et al.

Phys.Rev.D 7 (1973) 585-599, 1973.

Inspire Record 82572 DOI 10.17182/hepdata.22114

The results presented in this paper are obtained from an analysis of bubble-chamber pictures of K−d interactions at an incident K− momentum of 5.5 GeV/c. Generally, the quasitwo-body final states are produced peripherally, with a small backward peak occurring in some of the final states. The final states Σ−ω, Σ−ρ0, and Σ−φ appear to be produced primarily by vector-meson exchange. In the final state Λ(1520)π− the decay distributions of the Λ(1520) hyperon are found to be consistent with a vector-exchagne production process with M2 coupling at the nucleon vertex. The predictions of the independent-quark model and of other symmetry schemes, namely that the forward cross sections for Σ−ρ0, Σ−ω, Σ−φ production be in the ratios 1: 1: 2, are not inconsistent with our experimental values.

5 data tables

Table 1

No description provided.

Table 2

FRACTIONAL FORWARD HYPERON CROSS SECTION AFTER BACKGROUND SUBTRACTION.

Table 3

No description provided.

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Quasielastic Charge Exchange of Negative Pions on Carbon Into $\pi^0$, $\eta$, $\eta^\prime$ (958), $\omega(783)$ and F2 (1270) Mesons at 39.1-{GeV}/$c$

Polarization Parameters in the Reactions $\pi^- p$ (Polarized) $\to \eta n$ and $\pi^- p$ (Polarized) $\to \eta^\prime n$ at 40-{GeV}/$c$

Upper Limit of B0 anti-B0 Mixing in e+ e- Annihilation at 29-GeV

OBSERVATION OF POLARIZATION IN REACTION pi- p ---> eta n AT 40-GeV/c

K- d interactions at 5.5 gev/c - sigma-+ pi+- pi-(pi0), sigma- k+, k- and k- pi- p final states in which a hyperon is produced