Single-spin asymmetries and invariant cross sections of the high transverse-momentum inclusive π0 production in 200 GeV/c pp and p-p interactions

D. L Adams; N Akchurin; N. I Belikov; A Bravar; J Bystricky; M. D Corcoran; J. D Cossairt; J Cranshaw; A. A Derevschikov; H En’yo; H Funahashi; Y Goto; O. A Grachov; D. P Grosnick; D. A Hill; T Iijima; K Imai; Y Itow; K Iwatani; K. W Krueger; K Kuroda; F Lehar; A de Lesquen; D Lopiano; F. C Luehring; T Maki; S Makino; A Masaike; Yu. A Matulenko; A. P Meschanin; A Michalowicz; D. H Miller; K Miyake; T Nagamine; F Nessi-Tedaldi; M Nessi; C Nguyen; S. B Nurushev; Y Ohashi; Y Onel; D. I Patalakha; G Pauletta; A Penzo; A. L Read; J. B Roberts; L van Rossum; V. L Rykov; N Saito; G Salvato; P Schiavon; T Shima; J Skeens; V. L Solovyanov; H Spinka; R. W Stanek; R Takashima; F Takeutchi; N Tamura; N Tanaka; D. G Underwood; A. N Vasiliev; J. L White; S Yamashita; A Yokosawa; T Yoshida; A Zanetti

doi:10.1103/PhysRevD.53.4747

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Single-spin asymmetries and invariant cross sections of the high transverse-momentum inclusive π0 production in 200 GeV/c pp and p-p interactions

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Single-spin asymmetries and invariant cross sections of the high transverse-momentum inclusive π0 production in 200 GeV/c pp and p-p interactions

D. L Adams, N Akchurin, N. I Belikov, A Bravar, J Bystricky, M. D Corcoran, J. D Cossairt, J Cranshaw, A. A Derevschikov, H En’yo, …

Physical review. D, Particles and fields, Vol.53(9), pp.4747-4755

05/1996

DOI: 10.1103/PhysRevD.53.4747

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Abstract

The π0 inclusive and semi-inclusive, single-spin asymmetries have been measured using transversely polarized, 200-GeV/c proton and antiproton beams colliding with an unpolarized hydrogen target. The measured asymmetries are consistent with zero within the experimental uncertainties for the kinematic region -0.15<(formula presented)≳3 GeV/c were not correct. These data indicate that PQCD expectations seem confirmed and the higher-twist contribution to the single-spin asymmetry in π0 production at xF=0 is not large. Additional evidence for such a conclusion comes from the measurement of a semi-inclusive π0 asymmetry, where associated charged particles are detected opposite to the π0 azimuthal direction. This experiment also provides high-statistics data on the inclusive π0 cross sections for pp and p-p collisions at √s≊19.4 GeV

Details

Title: Subtitle: Single-spin asymmetries and invariant cross sections of the high transverse-momentum inclusive π0 production in 200 GeV/c pp and p-p interactions
Creators: D. L Adams
N Akchurin
N. I Belikov
A Bravar
J Bystricky
M. D Corcoran
J. D Cossairt
J Cranshaw
A. A Derevschikov
H En’yo
H Funahashi
Y Goto
O. A Grachov
D. P Grosnick
D. A Hill
T Iijima
K Imai
Y Itow
K Iwatani
K. W Krueger
K Kuroda
F Lehar
A de Lesquen
D Lopiano
F. C Luehring
T Maki
S Makino
A Masaike
Yu. A Matulenko
A. P Meschanin
A Michalowicz
D. H Miller
K Miyake
T Nagamine
F Nessi-Tedaldi
M Nessi
C Nguyen
S. B Nurushev
Y Ohashi
Y Onel
D. I Patalakha
G Pauletta
A Penzo
A. L Read
J. B Roberts
L van Rossum
V. L Rykov
N Saito
G Salvato
P Schiavon
T Shima
J Skeens
V. L Solovyanov
H Spinka
R. W Stanek
R Takashima
F Takeutchi
N Tamura
N Tanaka
D. G Underwood
A. N Vasiliev
J. L White
S Yamashita
A Yokosawa
T Yoshida
A Zanetti
Resource Type: Journal article
Publication Details: Physical review. D, Particles and fields, Vol.53(9), pp.4747-4755
DOI: 10.1103/PhysRevD.53.4747
NLM abbreviation: Phys Rev D Part Fields
ISSN: 0556-2821
eISSN: 1089-4918
Publisher: American Physical Society
Language: English
Date published: 05/1996
Academic Unit: Physics and Astronomy
Record Identifier: 9984199853102771

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