Results 31 to 40 of about 1,497 (140)

Exploring Nucleon Spin Structure in Longitudinally Polarized Collisions [PDF]

, 2002
We review how RHIC is expected to deepen our understanding of the spin structure of longitudinally polarized nucleons. After briefly outlining the current status of spin-dependent parton densities and pointing out open questions, we focus on theoretical ...
Stratmann, Marco
core   +3 more sources

Double Longitudinal Spin Asymmetry in Neutral Pion Production in Polarized p+p Collisions at sqrt(s)=200 GeV at PHENIX [PDF]

, 2007
A major goal of the RHIC spin program is to measure \Delta g, the gluon contribution to the proton's spin. Measurements by PHENIX of the double longitudinal spin asymmetry, A_LL, of the neutral pion production at mid-rapidity in polarized proton ...
Kieran Boyle, null null
core   +3 more sources

A_{LT} in the polarized Drell-Yan process at RHIC and HERA energies [PDF]

, 1998
We present a leading order (LO) estimate for the longitidinal-transverse spin asymmetry (A_{LT}) in the nucleon-nucleon polarized Drell-Yan process at RHIC and HERA-$\vec{N}$ energies in comparison with A_{LL} and A_{TT}.
Ali, Altarelli, Artru, Cortes, Gehrmann, Gehrmann, Glück, Glück, Goldstein, Jaffe, Jaffe, Jaffe, Kamal, Kanazawa, Martin, Martin, N Nishiyama, Pobylitsa, Ralston, Soffer, Vogelsang, Y Kanazawa, Yuji Koike   +22 more
core   +3 more sources

Hadron plus photon production in polarized hadronic collisions at next-to-leading order accuracy [PDF]

, 2011
We compute the next-to-leading order QCD corrections to the polarized (and unpolarized) cross sections for the production of a hadron accompanied by an opposite-side prompt photon.
A. Kocoloski, Daniel de Florian, Germán F. R. Sborlini, J. C. Collins, S. Frixione   +4 more
core   +2 more sources

First report of watermelon crinkle leaf-associated virus 1 and 2 infecting watermelon (Citrullus lanatus) plants in Brazil.

Plant Disease, 2021
Watermelon (Citrullus lanatus) is an important crop in Brazil both for export and domestic consumption. In this study, the cause of a severe leaf curling, distortions and vein clearing/yellowing disease of watermelon was investigated by high-throughput ...
Matheus Hideki Kihara Maeda, Lucas Hideo Hataka Koyama, Ravi Narayan Souza Campos, C. M. Kauffmann, Juliana Osse de Souza, R. Gilbertson, A. Inoue-Nagata, D. M. S. Freitas, Diêgo Rodrigues Soares Nogueira, F. L. Melo, T. Nagata   +10 more
semanticscholar   +1 more source

Next-to-leading order QCD corrections to high-p_T pion production in longitudinally polarized pp collisions [PDF]

, 2002
We present a calculation for single-inclusive large-p_T pion production in longitudinally polarized pp collisions in next-to-leading order QCD. We choose an approach where fully analytical expressions for the underlying partonic hard-scattering cross ...
Jager, B., Schafer, A., Stratmann, M., Vogelsang, W.   +3 more
core   +2 more sources

Isolated-photon production in polarized pp collisions [PDF]

, 1999
We perform a detailed study of the production of isolated prompt photons in polarized hadronic collisions, in the centre-of-mass energy range relevant to RHIC.
Abe, Abe, Ackerstaff, Apanasevich, Apanasevich, Aurenche, Aurenche, Aurenche, Aversa, Aversa, Baer, Baer, Ballocchi, Berger, Berger, Bojak, Bojak, Bourhis, Bourrely, Bunce, Buskulic, Catani, Catani, Catani, Catani, Chang, Cheng, Chiappetta, Contogouris, Contogouris, Contogouris, de Florian, de Florian, Ellis, Frixione, Frixione, Frixione, Frixione, Frixione, Gehrmann, Gehrmann-De Ridder, Glover, Glover, Glück, Glück, Glück, Glück, Gordon, Gordon, Gordon, Gordon, Gordon, Gupta, Gupta, Güllenstern, Huston, Kunszt, Laenen, Lai, Martin, Mathews, Mobed, Stefano Frixione, Stratmann, Vogelsang, Werner Vogelsang   +65 more
core   +2 more sources

Probing Polarized Gluon Distributions through Charmed Hadron Production in Polarized pp Collisions at BNL--RHIC Energy

, 2005
In order to extract information about behavior of polarized gluons in the nucleon, charmed hadron productions, i.e. D* meson and Lambda_c baryon productions, are studied in polarized pp reactions at BNL-RHIC energy.
Morii, Toshiyuki, Ohkuma, Kazumasa
core   +2 more sources

Next-to-Leading Order QCD Corrections to the Polarized Photoproduction of Heavy Flavors [PDF]

, 1998
We present a calculation of the next-to-leading order (O(alpha_s^2 alpha)) QCD corrections to heavy flavor photoproduction with longitudinally polarized beams.
Bojak, I., Stratmann, M.
core   +3 more sources

Next-to-Leading Order QCD Corrections to Heavy Quark Correlations in Longitudinally Polarized Hadron-Hadron Collisions

, 2009
We present a comprehensive phenomenological study of heavy flavor distributions and correlations in longitudinally polarized proton-proton collisions at BNL-RHIC.
Riedl, Johann, Schafer, Andreas, Stratmann, Marco   +2 more
core   +1 more source