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We study the incoherent multiple scattering effects on heavy meson production in the backward rapidity region of p+A collisions within the generalized high-twist factorization formalism. We calculate explicitly the double scattering…

High Energy Physics - Phenomenology · Physics 2015-03-09 Zhong-Bo Kang , Ivan Vitev , Enke Wang , Hongxi Xing , Cheng Zhang

We argue that high energy proton-nucleus (p+A) collisions provide an excellent laboratory for studying nuclear size enhanced parton multiple scattering where power corrections to the leading twist perturbative QCD factorization approach can…

High Energy Physics - Phenomenology · Physics 2009-11-10 Jianwei Qiu , Ivan Vitev

We present a systematic calculation of the coherent multiple parton scattering with several nucleons in lepton-nucleus and hadron-nucleus collisions. We show that in l+A reactions coherence leads to nuclear shadowing in the structure…

High Energy Physics - Phenomenology · Physics 2017-08-23 Jianwei Qiu , Ivan Vitev

We consider forward inclusive production of several quarks in the high energy p-A collisions in the CGC formalism. For three particle production we provide a complete expression in terms of multipole scattering amplitudes on the nucleus and…

High Energy Physics - Phenomenology · Physics 2018-04-18 Alex Kovner , Amir H. Rezaeian

We consider semi-inclusive diphoton+jet and inclusive diphoton production in high-energy proton-nucleus collisions, treating the target nucleus as a Color-Glass-Condensate and the projectile proton in the parton model. We obtain the prompt…

High Energy Physics - Phenomenology · Physics 2014-07-23 Alex Kovner , Amir H. Rezaeian

We study the nuclear enhancement of the transverse momentum imbalance for back-to-back particle production in both p+A and e+A collisions. Specifically, we present results for photon+jet and photon+hadron production in p+A collisions,…

High Energy Physics - Phenomenology · Physics 2012-11-12 Hongxi Xing , Zhong-Bo Kang , Ivan Vitev , Enke Wang

We calculate the multiple scattering effect on single hadron production in semi-inclusive lepton-nucleus deeply inelastic scattering. We show that the quantum interference of multiple scattering amplitudes leads to suppression in hadron…

High Energy Physics - Phenomenology · Physics 2007-06-13 Xiaofeng Guo , Jun Li

We derive forward inclusive dijet production in the scattering of a dilute hadron off an arbitrary dense target, whose partons with small fraction of momentum x are described by a Color Glass Condensate. Both multiple scattering and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Cyrille Marquet

We calculate inclusive hadron productions in pA collisions in the small-x saturation formalism at one-loop order. The differential cross section is written into a factorization form in the coordinate space at the next-to-leading order,…

High Energy Physics - Phenomenology · Physics 2013-05-30 Giovanni A. Chirilli , Bo-Wen Xiao , Feng Yuan

In terms of multiple scattering picture, we calculate the double scattering effect in the transverse momentum distribution of $J/\psi$ photoproduction. Applying the generalized factorization theorem, we find that the contributions from…

High Energy Physics - Phenomenology · Physics 2009-10-31 Han-Wen Huang

Inclusive electron scattering off few-nucleon systems is investigated at $x>1$ and high momentum transfer, including the contributions from quasi-elastic and deep inelastic scattering processes. It is shown that at $x>1$ the inclusive cross…

Nuclear Theory · Physics 2011-04-15 S. Simula

Multiple hard interactions of partons in the same p+p(\bar p) collision are a useful concept in the description of these collisions at collider energies. In particular, they play a crucial role for the understanding of the background (the…

Nuclear Experiment · Physics 2009-08-18 Klaus Reygers

The effects of multiple interactions in colliding particles (e.g. in nucleus-nucleus collisions) are modeled using the light-cone dipole approach. Guided by the abelian analogue of multi-photon interactions in the production of a pair of…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Z. Kopeliovich , Ivan Schmidt , A. V. Tarasov , O. O. Voskresenskaya

We present results and predictions for the nuclear modification of the differential cross sections for inclusive light hadron and prompt photon production in minimum bias d+Au collisions at $\sqrt{s} = 200$ GeV and minimum bias p+Pb…

High Energy Physics - Phenomenology · Physics 2012-11-27 Zhong-Bo Kang , Ivan Vitev , Hongxi Xing

We calculate and resum the nuclear enhanced power corrections from the final state partonic scattering in nuclear matter to open charm production and correlations. In p+A reactions, we find that single and double inclusive D mesons can be…

High Energy Physics - Phenomenology · Physics 2008-11-26 Ivan Vitev , T. Goldman , Mikkel Johnson , Jian-Wei Qiu

Modified quark fragmentation functions in deeply inelastic $eA$ collisions and their QCD evolution equations are derived for the first time in the framework of multiple parton scattering. Induced radiation gives rise to additional terms in…

High Energy Physics - Phenomenology · Physics 2008-11-26 Xiaofeng Guo , Xin-Nian Wang

Inclusive electron scattering from nuclei at large x and $Q^2$ is the result of a reaction mechanism that includes both quasi--elastic scattering from nucleons and deep inelastic scattering from the quark constituents of the nucleons. Data…

Nuclear Experiment · Physics 2009-11-13 Nadia Fomin

At $e^+e^-$ and $ep$ colliders, the large fluxes of almost on-shell photons accompanying the lepton beams lead to the photoproduction of jets. As the centre-of-mass energy is increased, regions of smaller $x$ in the parton densities are…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. M. Butterworth , J. R. Forshaw , M. H. Seymour , J. K. Storrow , R. Walker

We summarize the results of a recent study of heavy quark production and attenuation in cold nuclear matter. In p+p collisions, we investigate the relative contribution of partonic sub-processes to $D$ meson production and $D$…

High Energy Physics - Phenomenology · Physics 2009-11-11 Ivan Vitev

We calculate the photon production cross section arising from the hard scattering of partons in nucleon-nucleon collisions by taking into account the intrinsic parton transverse momentum distribution and the next-to-leading-order…

High Energy Physics - Phenomenology · Physics 2008-11-26 Cheuk-Yin Wong , Hui Wang
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