2 00 0 97 Production of 3 π 0 and η 2 π 0 from π − p Collision in GAMS ∗ Experiment
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ar X iv : h ep - p h / 01 01 02 4 v 1 3 J an 2 00 1 Interference pattern analysis in the decays φ → γπη and φ → γπ 0 π 0
Interference pattern analysis in the decays φ → γπη and φ → γπ 0 π 0. Abstract We analyse the interference patterns in the reactions φ → (γa 0 + π 0 ρ) → γπη and φ → (γf 0 +π 0 ρ) → γπ 0 π 0. Taking into account the interference, we fit the experimental data and show that the background reaction does not distort the π 0 η spectrum in the decay φ → γπη everywhere over the energy region and does ...
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Calculations of the nuclear modification factor, R dAu , for π 0 production in dAu collisions at √ s N N = 200 GeV are presented. The applied pQCD-improved parton model incorporates intrinsic k T. Nuclear multiscattering and nuclear shadowing are considered in the Au nucleus. Theoretical results are displayed for midrapidity and high pseudorapidity, η, and compared to preliminary PHENIX and BRA...
متن کاملar X iv : n uc l - ex / 0 60 10 08 v 1 4 J an 2 00 6 Single Spin Asymmetries in the BRAHMS Experiment
The BRAHMS experiment at RHIC has measured the transverse single spin asymmetries in polarized pp induced pion production at RHIC. The results from the RHIC run-5 shows a significant asymmetry for π + and π − at moderate x F. The trend of the data is in agreement with lower energy results while the absolute values are surprisingly large. The p T dependence is approximately inversely propotional...
متن کامل- th / 0 40 40 12 v 2 1 6 A pr 2 00 4 Cronin Effect at Different Rapidities at RHIC
Calculations of the nuclear modification factor, R dAu , for π 0 production in dAu collisions at √ s = 200 AGeV are presented. The applied pQCD-improved parton model incorporates intrinsic k T. Nuclear multiscattering and nuclear shadowing are considered in the Au nucleus. Theoretical results are displayed for midrapidity and high pseudorapidity (η), and compared to preliminary PHENIX and BRAHM...
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abstract An extensive spectrum of light non-strange q ¯ q states up to a mass of 2400 MeV has emerged from Crystal Barrel and PS172 data on ¯ pp → Resonance → A + B in 17 final states. These data are reviewed with detailed comments on the status of each resonance. For I = 0, C = +1, the spectrum is complete and very secure. Six 'extra' states are identified. Four of them have I = 0, C = +1 and ...
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