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Open charm production during the equilibration of a gluon dominated parton plasma is calculated, with both the time-dependent temperature and parton densities given by a set of rate equations. Including pre-thermal production, the total…

High Energy Physics - Phenomenology · Physics 2008-11-26 Peter Levai , Berndt Muller , Xin-Nian Wang

Leading charm production in reaction $\pi^- N \rightarrow DX$ is discussed.Three experiments at Fermilab and CERN have measured a rather large enhancement in production rate of leading $D^-$-mesons over nonleading $D^+$.A good description…

High Energy Physics - Phenomenology · Physics 2009-10-28 O. I. Piskounova

We study charm particle production in hadron-hadron collisions. After calculating perturbatively the charm quark differential cross section, we study the hadronization mechanisms. It is shown that recombination is the key to understand the…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. Avila , J. Magnin , L. M. Mendoza-Navas

We discuss aspects of the statistical hadronization model for the production of mesons with open and hidden charm in ultra-relativistic nuclear collisions. Emphasis is placed on what can be inferred from the dependence of the yield of…

Nuclear Theory · Physics 2008-11-26 P. Braun-Munzinger , J. Stachel

The effect of gluon shadowing on charm quark production in large impact parameter ultrarelativistic heavy ion collisions is investigated. Charm production cross sections are calculated for a range of non-central impact parameters which can…

Nuclear Theory · Physics 2008-11-26 V. Emel'yanov , A. Khodinov , S. R. Klein , R. Vogt

Using an effective hadronic Lagrangian with physical hadron masses and coupling constants determined either empirically or from SU(4) flavor symmetry, we study the production cross sections of charm mesons from pion and rho meson…

Nuclear Theory · Physics 2009-11-07 W. Liu , C. M. Ko

Leading charm hadrons produced in hadron-nucleus interactions cannot be adequately described within the parton fusion model. Recent results on charm baryon production in $\Sigma^- A$ interactions at 330 GeV with the WA89 detector disagree…

High Energy Physics - Phenomenology · Physics 2014-11-17 T. Gutierrez , R. Vogt

This review is devoted to the study of charm production in ep and pp collisions. The total set of measurements obtained by the two collaborations H1 and ZEUS from HERA and their combination is outlined, as well as complementary data…

High Energy Physics - Experiment · Physics 2017-03-16 Oleksandr Zenaiev

We investigate charm production in an equilibrated quark-gluon plasma produced in heavy-ion collisions at RHIC and LHC. Effective quark and gluon masses are introduced from thermal QCD calculations. Assuming a Bjorken-type longitudinal…

High Energy Physics - Phenomenology · Physics 2008-11-26 Peter Levai , Ramona Vogt

Precise measurements of charm production in deep inelastic scattering are presented and compared with next-to-leading-order QCD. The data show sensitivity to the choice of parametrisation of the gluon density in the proton and could be used…

High Energy Physics - Experiment · Physics 2007-05-23 M. Wing

We consider the production of charm by real and virtual photons. Special attention is paid to diffractive charm production, which provides information on the gluonic content of the Pomeron. Our calculations are based on the gluon…

High Energy Physics - Phenomenology · Physics 2011-01-25 L. P. A. Haakman , A. B. Kaidalov , J. H. Koch

We discuss charm $D^0 D^0$ meson-meson pair production in the forward rapidity region related to the LHCb experimental studies at $\sqrt{s}$ = 7 TeV. We consider double-parton scattering mechanisms of double $c \bar c$ production and…

High Energy Physics - Phenomenology · Physics 2016-10-18 Rafal Maciula , Antoni Szczurek

We present a calculation of open charm quark production in diffractive deep inelastic electron-proton scattering in a perturbative QCD framework. The cross section is proportional to the square of the gluon density and explicitly displays…

High Energy Physics - Phenomenology · Physics 2009-10-30 H. Lotter

We calculate the energy--momentum distribution of the charmed quarks produced in neutrino reactions on protons, quantifying the importance of mass and current non--conservation effects. We study the strange and charm distributions probed in…

High Energy Physics - Phenomenology · Physics 2009-10-28 V. Barone , M. Genovese , N. N. Nikolaev , E. Predazzi , B. G. Zakharov

The production of charmed and beauty hadrons in proton-proton and proton-antiproton collisions at high energies is analyzed within the modified quark-gluon string model (QGSM) including the internal motion of quarks in colliding hadrons. It…

High Energy Physics - Phenomenology · Physics 2010-04-22 Gennady I. Lykasov , Vladimir V. Lyubushkin , Vadim A. Bednyakov

The next-to-leading open charm production in $\gamma p$ collisions is calculated within the Perturbative Fragmentation Functions formalism, to allow resummation of $\as\log(\pt^2/m^2)$ terms. In the large $\pt$ region $(\pt > m)$ the result…

High Energy Physics - Phenomenology · Physics 2008-11-26 Matteo Cacciari , Mario Greco

Charm production from the quark-gluon plasma created in the midrapidity of central heavy ion collisions at the Large Hadron Collider (LHC) is studied in the next-to-leading order in QCD. Using a schematic longitudinally boost-invariant and…

Nuclear Theory · Physics 2008-11-26 Ben-Wei Zhang , Che Ming Ko , Wei Liu

Charm and bottom production near threshold is sensitive to the multi-quark, gluonic, and hidden-color correlations of hadronic and nuclear wavefunctions in QCD since all of the target's constituents must act coherently within the small…

High Energy Physics - Phenomenology · Physics 2009-09-11 S. J. Brodsky , E. Chudakov , P. Hoyer , J. M. Laget

We study the total cross section for photo production of open charm hadrons near threshold using a hadronic Lagrangian. Both two-body final states involving $\Lambda_c$ and a charmed meson as well as three-body final states involving…

Nuclear Theory · Physics 2009-11-10 Wei Liu , Su Houng Lee , Che Ming Ko

We have refined a model for charm fragmentation at hadron colliders. This model can also be applied to the photoproduction of charm. We investigate the effect of fragmentation on the distribution of produced charm quarks. The drag effect is…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Norrbin , T. Sjöstrand
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