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Results from a phenomenological analysis for diffractive hadroproduction of heavy flavors at high energies are reported. Diffractive production of charm, bottom and top are calculated using Regge factorization, taking into account recent…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. V. T. Machado

We study the production of charmed and multi-charmed hadrons in ultra-relativistic Heavy Ion Collisions coupling the transport approach for charm dynamics in the medium to an hybrid hadronization model of coalescence plus fragmentation. In…

High Energy Physics - Phenomenology · Physics 2024-03-14 Vincenzo Minissale , Salvatore Plumari , Yifeng Sun , Vincenzo Greco

We study charm production in ultra-relativistic heavy-ion collisions by using the Parton-Hadron-String Dynamics (PHSD) transport approach. The initial charm quarks are produced by the Pythia event generator tuned to fit the transverse…

In order to extract the polarized strange quark density in proton, we studied the semi-inclusive $\Lambda_c$/$\bar{\Lambda}_c$ leptoproduction in charged current DIS at THERA energies. We indicate that measurements of the spin correlation…

High Energy Physics - Phenomenology · Physics 2009-11-07 Kazutaka SUDOH

In the framework of the perturbative Quantum Chromodynamics factorization, the cross section of the heavy meson production via the combination of a heavy quark with a light one can be factorized to be the convolution of the combination…

High Energy Physics - Phenomenology · Physics 2021-08-23 Chuanhui Jiang , Honglei Li , Shi-Yuan Li , Shufen Liu , Xinyue Yin

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

Measurements of dilepton production from charm decay and Drell-Yan processes respectively probe the gluon and sea quark distributions in hadronic collisions. In nucleus-nucleus collisions, these hard scattering processes constitute a…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Gavin , P. L. McGaughey , P. V. Ruuskanen , R. Vogt

The production of charmed and beauty baryons in proton-proton collisions at high energies is analyzed within the modified quark-gluon string model. We present some predictions for the experiments on the forward beauty baryon production in…

High Energy Physics - Phenomenology · Physics 2010-12-09 V. A. Bednyakov , G. I. Lykasov , V. V. Lyubushkin

The cross section of associated production of a Z boson with heavy flavor jets in $pp$ collisions is calculated using the SHERPA Monte Carlo generator and the analytical combined QCD approach based on kt-factorization at small x and…

High Energy Physics - Phenomenology · Physics 2018-06-27 A. V. Lipatov , G. I. Lykasov , M. A. Malyshev , A. A. Prokhorov , S. M. Turchikhin

We advocate charmed-hadron inclusive hadroproduction as a laboratory to probe intrinsic charm (IC) inside the colliding hadrons. Working at next-to-leading order in the general-mass variable-flavor-number scheme endowed with…

High Energy Physics - Phenomenology · Physics 2009-07-30 B. A. Kniehl , G. Kramer , I. Schienbein , H. Spiesberger

We investigate the production cross sections, momentum distributions and rapidity distributions for doubly charmed baryons which according to the intrinsic heavy quark mechanism are produced nearly at rest. These events should be measurable…

High Energy Physics - Phenomenology · Physics 2017-08-08 Stefan Groote , Sergey Koshkarev

We present hadron-level predictions from the Monte Carlo generator Cascade and numerical calculations of charm and beauty production at the Fermilab Tevatron within the framework of the $k_T$-factorization QCD approach. Our consideration is…

High Energy Physics - Phenomenology · Physics 2011-01-25 H. Jung , M. Kraemer , A. V. Lipatov , N. P. Zotov

We advocate charmed-hadron inclusive hadroproduction as a laboratory to probe intrinsic charm (IC) inside the colliding hadrons. Working at next-to-leading order in the general-mass variable-flavor-number scheme endowed with…

High Energy Physics - Phenomenology · Physics 2009-07-02 B. A. Kniehl

We discuss production of nonphotonic electrons in proton-proton scattering at RHIC. The distributions in rapidity and transverse momentum of charm and bottom quarks/antiquarks are calculated in the $k_t$-factorization approach. We use…

High Energy Physics - Phenomenology · Physics 2009-11-06 Marta Luszczak , Rafal Maciula , Antoni Szczurek

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

High Energy Physics - Phenomenology · Physics 2009-10-13 G. I. Lykasov , V. V. Lyubushkin , T. V. Lyubushkina , V. A. Bednyakov

We study charm production in Pb+Pb collisions at $\sqrt{s_{\rm NN}}=$2.76 TeV in the Parton-Hadron-String-Dynamics transport approach and the charm dynamics in the partonic and hadronic medium. The charm quarks are produced through initial…

Nuclear Theory · Physics 2016-03-23 Taesoo Song , Hamza Berrehrah , Daniel Cabrera , Wolfgang Cassing , Elena Bratkovskaya

We present predictions for the inclusive production of leptons ($e^{\pm},\mu^{\pm}$) originating from charm and bottom-hadrons at the CERN LHC in the general-mass variable-flavor-number scheme at next-to-leading order. Detailed numerical…

High Energy Physics - Phenomenology · Physics 2013-09-13 Paolo Bolzoni , Gustav Kramer

We present results on rapidity and transverse momentum distributions of inclusive charm quark production in heavy-ion collisions at RHIC, including the next-to-leading order, $O(\alpha_s^3)$, radiative corrections and the nuclear shadowing…

Nuclear Theory · Physics 2009-10-28 I. Sarcevic , P. Valerio

The cross section for the inclusive photoproduction of large-p_T D^*+- mesons is calculated at next-to-leading order, adopting different approaches to describe the fragmentation of charm quarks into D^*+- mesons. We treat the charm quark…

High Energy Physics - Phenomenology · Physics 2014-11-17 B. A. Kniehl , G. Kramer , M. Spira

We discuss production of four jets $pp \rightarrow j j j j X$ with at least two jets with large rapidity separation in proton-proton collisions at the LHC through the mechanism of double-parton scattering (DPS). The cross section is…

High Energy Physics - Phenomenology · Physics 2015-06-23 Antoni Szczurek , Anna Cisek , Rafał Maciuła