Albuquerque, I.F.
Polarization
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Polarization of Sigma+ and anti-Sigma- hyperons produced by 800-GeV/c protons

The E761 collaboration Morelos Pineda, Antonio ; Albuquerque, I.F. ; Bondar, N.F. ; et al.
Phys.Rev.Lett. 71 (1993) 2172-2175, 1993.
Inspire Record 356301 DOI 10.17182/hepdata.19722

We have mesured the polarization of 375-GeV/c Σ+ and Σ¯ − hyperons produced by 800-GeV/c protons incident on a Cu target. We find that the Σ+ polarization rises with increasing pt to a maximum of 16% at pt=1.0 GeV/c and then decreases to 10% at pt=1.8 GeV/c. We compare this Σ+ polarization with data at lower energies. The Σ¯ − polarization has been measured for the first time. It has the same sign as the Σ+ but smaller magnitude in a similar kinematical region.

4 data tables match query
Table 1

Data from Horizontal targeting.

Table 2

Data from Vertical targeting.

Table 3

Data from Horizontal targeting.

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$P_{\tau}$ and $X_F$ Dependence of the Polarization of $\Sigma^+$ Hyperons Produced by 800-GeV/c Protons

The E761 collaboration Morelos Pineda, Antonio ; Albuquerque, I.F. ; Bondar, N.F. ; et al.
Phys.Rev.D 52 (1995) 3777-3780, 1995.
Inspire Record 360549 DOI 10.17182/hepdata.42500

We utilize the angle and momentum resolution of our apparatus to study the polarization of 375 GeV/c Σ+ hyperons produced by 800 GeV/c protons incident on a Cu target. By examining in detail two of our high statistics data samples, we find evidence for structure in the pt dependence of Σ+ polarization and are able to extract the xF dependence of the Σ+ polarization and compare it with xF behavior in the Λ0 and Ξ− systems.

9 data tables match query
Table 1

0.9 mrad horizontal sample.

Table 2

2.9 mrad horizontal sample.

Table 3

3.3 mrad horizontal sample.

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Differential Cross-section and Polarization for $\pi^+ p \to K^+ \Sigma^+$ at 26 Momenta Between 1.282-{GeV}/$c$ and 2.473-{GeV}/$c$

Candlin, D.J. ; Lowe, D.C. ; Peach, K.J. ; et al.
Nucl.Phys.B 226 (1983) 1, 1983.
Inspire Record 183213 DOI 10.17182/hepdata.8242

Differential cross sections and polarisations in the reaction π + p→K + Σ + have been measured using the Rutherford Multiparticle Spectrometer at NIMROD. Data are presented at 26 momentum points at approximately 50 MeV/ c intervals in the range 1.282 to 2.473 GeV/ c with an order of magnitude more events than previous experiments. Legendre polynomial expansion coefficients have also been determined.

5 data tables match query
Table 1

ERRORS HAVE SYSTEMATIC AND STATISTICAL ERRORS FOLDED IN QUADRATURE. TYPICAL STATISTICAL ERRORS ARE 2 PCT OR LESS.

Table 2

No description provided.

Table 3

No description provided.

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Measurement of the Spin Rotation Parameter, Beta, in the Reaction $\pi^+ p \to K^+ \Sigma^+$ at 1.60-{GeV}/$c$ and 1.88-{GeV}/$c$

Candlin, D.J. ; Lowe, D.C. ; Peach, K.J. ; et al.
Nucl.Phys.B 311 (1989) 613-629, 1989.
Inspire Record 263837 DOI 10.17182/hepdata.33220

Values of the spin-rotation parameter, β, are measured in the reaction π + p → K + Σ + at incident pion momenta of 1.69 and 1.88 GeV/ c .

2 data tables match query
Table 1

No description provided.

Table 2

No description provided.


A measurement of the transverse polarization of Lambda-hyperons produced in n C reactions in the EXCHARM experiment.

The EXCHARM collaboration Aleev, A.N. ; Balandin, V.P. ; Dvalishvili, E.A. ; et al.
Eur.Phys.J.C 13 (2000) 427-432, 2000.
Inspire Record 509253 DOI 10.17182/hepdata.43333

New precise data of the$\Lambda^0$polarization are obtained in the EXCHARM experiment at the Serpukhov accelerator. The$\Lambda^0$

2 data tables match query
Table 1

LAMBDA polarization as a function of PT for the whole XL region.

Table 2

LAMBDA polarization as a function of PT for three XL regions.