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Gluons and the quark sea at high energies: distributions, polarization, tomography
/ Boer, Daniel (Groningen U.) ; Diehl, Markus (DESY) ; Milner, Richard (MIT) ; Venugopalan, Raju (Brookhaven) ; Vogelsang, Werner (Tubingen U.) ; Kaplan, David (Washington U., Seattle) ; Montgomery, Hugh (Jefferson Lab) ; Vigdor, Steven (Brookhaven) ; Accardi, A. (Jefferson Lab) ; Aschenauer, E.C. (Brookhaven) et al.
This report is based on a ten-week program on "Gluons and the quark sea at high-energies", which took place at the Institute for Nuclear Theory in Seattle in Fall 2010. [...]
arXiv:1108.1713 ; SLAC-R-995 ; INT-PUB-11-034 ; BNL-96164-2011 ; JLAB-THY-11-1373 ; INT-PUB-11-034 ; BNL-96164-2011 ; JLAB-THY-11-1373.
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2011 - 547.
JLab Document Server - SLAC Document Server - Full text
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Proton-Nucleus Collisions at the LHC: Scientific Opportunities and Requirements
/ Salgado, C.A. (Santiago de Compostela U.) ; Alvarez-Muniz, J. (Santiago de Compostela U.) ; Arleo, F. (Annecy, LAPTH) ; Armesto, N. (Santiago de Compostela U.) ; Botje, M. (NIKHEF, Amsterdam) ; Cacciari, M. (Paris U., VI-VII) ; Campbell, J. (Fermilab) ; Carli, C. (CERN) ; Cole, B. (Columbia U.) ; D'Enterria, D. (CERN ; ICREA, Barcelona) et al.
Proton-nucleus (p+A) collisions have long been recognized as a crucial component of the physics programme with nuclear beams at high energies, in particular for their reference role to interpret and understand nucleus-nucleus data as well as for their potential to elucidate the partonic structure of matter at low parton fractional momenta (small-x). Here, we summarize the main motivations that make a proton-nucleus run a decisive ingredient for a successful heavy-ion programme at the Large Hadron Collider (LHC) and we present unique scientific opportunities arising from these collisions. [...]
arXiv:1105.3919; CERN-PH-TH-2011-119; LHC-PROJECT-REPORT-1181; CERN-PH-TH-2011-119; LHC-PROJECT-REPORT-1181.-
Geneva : CERN, 2012 - 33 p.
- Published in : J. Phys. G 39 (2012) 015010
Fulltext: arXiv:1105.3919 - PDF; fermilab-pub-11-841-t - PDF;
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High energy factorization in nucleus-nucleus collisions III. Long range rapidity correlations
/ Gelis, Francois (CERN ; DSM, DAPNIA, Saclay) ; Lappi, Tuomas (DSM, DAPNIA, Saclay) ; Venugopalan, Raju (Brookhaven)
We obtain a novel result in QCD for long range rapidity correlations between gluons produced in the collision of saturated high energy hadrons or nuclei. This result, obtained in a high energy factorization framework, provides strong justification for the Glasma flux tube picture of coherent strong color fields. [...]
arXiv:0810.4829.-
2009 - 4 p.
- Published in : Phys. Rev. D 79 (2009) 094017
APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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Parton Distributions
/ Dittmar, M. (Zurich, ETH) ; Forte, S. (INFN, Milan) ; Glazov, A. (DESY) ; Moch, S. (DESY, Zeuthen) ; Altarelli, G. (CERN ; Rome III U.) ; Anderson, J. (University Coll., Dublin) ; Ball, R.D. (Edinburgh U.) ; Beuf, G. (CEA, DSM, Saclay) ; Boonekamp, M. (IRFU, SPP, Saclay) ; Burkhardt, H. (CERN) et al.
We provide an assessment of the state of the art in various issues related to experimental measurements, phenomenological methods and theoretical results relevant for the determination of parton distribution functions (PDFs) and their uncertainties, with the specific aim of providing benchmarks of different existing approaches and results in view of their application to physics at the LHC. [...]
arXiv:0901.2504 ; IFUM-936-FT ; IFUM-936-FT.
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2009. - 99 p.
Preprint - Full text
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High energy factorization in nucleus-nucleus collisions, I
/ Gelis, Francois (CERN) ; Lappi, Tuomas (Saclay, SPhT) ; Venugopalan, Raju (Brookhaven)
We derive a high energy factorization theorem for inclusive gluon production in A+A collisions. Our factorized formula resums i) all order leading logarithms (g^2 \ln(1/x_{1,2}))^n of the incoming partons momentum fractions, and ii) all contributions (g \rho_{1,2})^n that are enhanced when the color charge densities in the two nuclei are of order of the inverse coupling-- \rho_{1,2}\sim g^{-1}. [...]
arXiv:0804.2630; IPHT-T08-068; CERN-PH-TH-2008-074; CERN-PH-TH-2008-074; IPHT-T-2008-068.-
2008 - 55 p.
- Published in : Phys. Rev. D 78 (2008) 054019
APS Published version, local copy: PDF; Fulltext: PDF; External link: Fulltext
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