Production of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>and η mesons at large transverse momenta in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mi>−</mml:mi></mml:mrow></mml:msup></mml:mrow><mml:mi>p</mml:mi></mml:math>and<mml:math xmlns:mml="htt

Inclusive transverse momentum spectra of η mesons in the range p T ≈ 2-12 GeV/c have been measured at midrapidity (|η| < 0.35) by the PHENIX experiment at RHIC in p+p, d+Au, and Au+Au collisions at √ s NN = 200 GeV. The η mesons are reconstructed through their η → γ γ channel for the three colliding systems as well as through the η → π 0 π + π − decay mode in p+p and d+Au collisions. The nuclear modification factor in d+Au collisions, R dAu (p T ) ≈ 1.0-1.1, suggests at most only modest p T broadening ("Cronin enhancement"). 024909-2HIGH TRANSVERSE MOMENTUM η MESON . . . PHYSICAL REVIEW C 75, 024909 (2007)

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Measurement of direct-photon production at the Fermilab Tevatron fixed target energies

Apanasevich¹,

Bacigalupi²,

Baker³

et al. 2004

Phys. Rev. D

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Measurements of the production of high transverse momentum direct photons by a 515 GeV=c ÿ beam and 530 and 800 GeV=c proton beams in interactions with beryllium and hydrogen targets are presented. The data span the kinematic ranges of 3:5 < p T < 12 GeV=c in transverse momentum and 1.5 units in rapidity. The inclusive direct-photon cross sections are compared with next-to-leading-order perturbative QCD calculations and expectations based on a phenomenological parton-k T model.

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Production ofπ0and η mesons at large transverse momenta inπ−pand
L. Apanasevich¹,
J. Bacigalupi²,
W. Baker³
et al.

Cited by 5 publications

References 81 publications

Direct Photon and Neutral Meson Production at Fermilab Fixed-Target Energies

Direct Photon and Neutral Meson Production at Fermilab Fixed-Target Energies

High transverse momentum η meson production inp+p,d+Au, and Au+Au collisions atsNN=
Adler¹,
Afanasiev²,
Aidala³
et al. 2007
Phys. Rev. C
90
8
37
0
View full text Add to dashboard Cite

Measurement of direct-photon production at the Fermilab Tevatron fixed target energies

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Production ofπ0and η mesons at large transverse momenta inπ−pandL. Apanasevich1, J. Bacigalupi2, W. Baker3 et al.

Cited by 5 publications

References 81 publications

Direct Photon and Neutral Meson Production at Fermilab Fixed-Target Energies

Direct Photon and Neutral Meson Production at Fermilab Fixed-Target Energies

High transverse momentum η meson production inp+p,d+Au, and Au+Au collisions atsNN=Adler1, Afanasiev2, Aidala3 et al. 2007Phys. Rev. C908370View full textAdd to dashboardCite

Measurement of direct-photon production at the Fermilab Tevatron fixed target energies

Contact Info

Product

Resources

About

Production ofπ0and η mesons at large transverse momenta inπ−pand
L. Apanasevich¹,
J. Bacigalupi²,
W. Baker³
et al.

High transverse momentum η meson production inp+p,d+Au, and Au+Au collisions atsNN=
Adler¹,
Afanasiev²,
Aidala³
et al. 2007
Phys. Rev. C
90
8
37
0
View full text Add to dashboard Cite