Measurement of analyzing powers of pi + and pi - produced on a hydrogen and a carbon target with a 22-GeV/c incident polarized proton beam

Allgower, C.E. ; Krueger, K.W. ; Kasprzyk, T.E. ; et al.
Phys.Rev.D 65 (2002) 092008, 2002.
Inspire Record 587580 DOI 10.17182/hepdata.22221

The analyzing powers of π+ and π− were measured using an incident 22−GeV/c transversely polarized proton beam at the Brookhaven Alternating Gradient Synchrotron. A magnetic spectrometer measured π± inclusive asymmetries on a hydrogen and a carbon target. An elastic polarimeter with a CH2 target measured pp elastic-scattering asymmetries to determine the beam polarization using published data for the pp elastic analyzing power. Using the beam polarization determined from the elastic polarimeter and asymmetries from the inclusive spectrometer, analyzing powers AN for π± were determined in the xF and pT ranges (0.45–0.8) and (0.3–1.2 GeV/c), respectively. The analyzing power results are similar in both sign and character to other measurements at 200 and 11.7 GeV/c, confirming the expectation that high-energy pion inclusive analyzing powers remain large and relatively energy independent. This suggests that pion inclusive polarimetry may be a suitable method for measuring future beam polarizations at BNL RHIC or DESY HERA. Analyzing powers of π+ and π− produced on hydrogen and carbon targets are the same. Various models to explain inclusive analyzing powers are also discussed.

7 data tables

Analyzing power measurements for PI+ and PI- production on the carbon target at incident momentum 21.6 GeV. See text of article for definitions of method 'A' and 'B'.

Analyzing power measurements for inclusive PI- production from the hydrogen target.

Analyzing power measurements for inclusive PI+ production from the hydrogen target.

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Analyzing the features of pi- mesons and protons from A C interactions at a momentum of p = 4.2-GeV/c per projectile nucleon on the basis of the FRITIOF model.

Baatar, T. ; Bondarenko, A.I. ; Bondarenko, R.A. ; et al.
Phys.Atom.Nucl. 63 (2000) 839-844, 2000.
Inspire Record 533011 DOI 10.17182/hepdata.17089

The mean multiplicities of π− mesons and protons originating from pC, dC, αC, and CC interactions at a momentum of p=4.2 GeV/c per projectile nucleon and the distributions of these particles in kinematical variables are presented. These experimental distributions are compared with the corresponding predictions obtained on the basis of the FRITIOF model. It is shown that the FRITIOF version used in the present analysis describes satisfactorily our experimental data.

16 data tables

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Analyzing power of collisions between polarized protons with energies in the range 0.71-GeV to 3.61-GeV and carbon nuclei

Anoshina, E.V. ; Bodyagin, V.A. ; Vardanian, I.N. ; et al.
Phys.Atom.Nucl. 60 (1997) 224-229, 1997.
Inspire Record 457394 DOI 10.17182/hepdata.17091

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3 data tables

(C=EXP1) and (C=EXP2) correspond to two different method of event's registration. See text for details.

(C=EXP1) and (C=EXP2) correspond to two different method of event's registration. See text for details. Quasielastic events.

(C=EXP1) and (C=EXP2) correspond to two different method of event's registration. See text for details. Quasielastic events.


Mass-number dependence of proton, pi+, and K+ production in interactions between 10.1-GeV/c protons and nuclei.

Sibirtsev, A.A. ; Baranov, M.V. ; Voronin, S.V. ; et al.
Sov.J.Nucl.Phys. 47 (1988) 662-664, 1988.
Inspire Record 272924 DOI 10.17182/hepdata.17411

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2 data tables

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A-dependence of Fragmentation of 9.2-{GeV} Protons on Nuclei. (In Russian)

Vorontsov, I.A. ; Safronov, G.A. ; Sibirtsev, A.A. ; et al.
MOSCOW INST. THEOR. EXP. PHYS. GKAE - ITEF-88-011 (88,REC.JUN.) 13p, 1988.
Inspire Record 266381 DOI 10.17182/hepdata.40096

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5 data tables

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ANTI-PROTON CREATION WITH A MOMENTUM FROM 1.25-GEV/C TO 5-GEV/C IN PROTON INTERACTIONS OF 10.1-GEV/C MOMENTUM WITH BE, AL, CU AND TA NUCLEI. (IN RUSSIAN)

Voronin, S.V. ; Vorontsov, I.A. ; Safronov, G.A. ; et al.
MOSCOW INST. THEOR. EXP. PHYS. - ITEF-88-117 (88,REC.JAN.89) 23p, 1988.
Inspire Record 270428 DOI 10.17182/hepdata.40060

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2 data tables

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High $p_T$ Deuteron and Anti-deuteron Production in $p p$ and $p$ a Collisions at 70-{GeV}

Abramov, V.V. ; Baldin, B.Yu. ; Buzulutskov, A.F. ; et al.
Sov.J.Nucl.Phys. 45 (1987) 845, 1987.
Inspire Record 230030 DOI 10.17182/hepdata.40804

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8 data tables

Axis error includes +- 0.0/0.0 contribution (?////DUE TO ABSORPTION CORRECTIONS//THE CORRECTION TO THE RATIO DEUT/P DUE TO DIFFERENCE OF PARTICLE ABSORPTION IN CHERENKOV COUNTERS WERE DETERMINED EXPERIMENTALLY (IN THE RANGE 6-45 PCT). THERE WAS THE CORRECTION OF ABOUT 19 PCT FOR ABSORPTION IN THE OTHER PARTS OF THE SPECTROMETER).

Axis error includes +- 0.0/0.0 contribution (?////DUE TO ABSORPTION CORRECTIONS//THE CORRECTION TO THE RATIO DEUT/P DUE TO DIFFERENCE OF PARTICLE ABSORPTION IN CHERENKOV COUNTERS WERE DETERMINED EXPERIMENTALLY (IN THE RANGE 6-45 PCT). THERE WAS THE CORRECTION OF ABOUT 19 PCT FOR ABSORPTION IN THE OTHER PARTS OF THE SPECTROMETER).

Axis error includes +- 0.0/0.0 contribution (?////DUE TO ABSORPTION CORRECTIONS//THE CORRECTION TO THE RATIO DEUT/P DUE TO DIFFERENCE OF PARTICLE ABSORPTION IN CHERENKOV COUNTERS WERE DETERMINED EXPERIMENTALLY (IN THE RANGE 6-45 PCT). THERE WAS THE CORRECTION OF ABOUT 19 PCT FOR ABSORPTION IN THE OTHER PARTS OF THE SPECTROMETER).

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TWO PARTICLE ENERGY-ENERGY CORRELATIONS IN PROTON - NUCLEI INTERACTIONS PROVIDED WITH THE CUMULATIVE PROTONS

Baturin, V.N. ; Vikhrov, V.V. ; Komarov, E.N. ; et al.
LENINGRAD-86-1167, 1986.
Inspire Record 230382 DOI 10.17182/hepdata.37992

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25 data tables

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Polarization of Cumulative Protons Produced in the Reaction $P$ a $\to P^\prime$ X at 1-{GeV}. (In Russian)

Belostotsky, S.L. ; Dotsenko, Yu.V. ; Ero, J. ; et al.
Sov.J.Nucl.Phys. 42 (1985) 904, 1985.
Inspire Record 210114 DOI 10.17182/hepdata.38015

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10 data tables

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CHARACTERISTICS OF SECONDARY PROTONS FROM INELASTIC INTERACTIONS OF PROTONS WITH NE NUCLEI AND NUCLEONS AT THE MOMENTUM P = 300-GEV/C. (IN RUSSIAN)

Allaberdin, M.L. ; Inogamova, T.Ya. ; Kosonovsky, E.A. ; et al.
Yad.Fiz. 39 (1984) 662-674, 1984.
Inspire Record 206660 DOI 10.17182/hepdata.2646

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19 data tables

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