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We study the inclusive hadrodroduction of D^0, D^+, D^{*+}, and D_s^+ mesons at next-to-leading order in the parton model of quantum chromodynamics endowed with universal non-perturbative fragmentation functions (FFs) fitted to e^+e^-…

High Energy Physics - Phenomenology · Physics 2017-08-23 B. A. Kniehl

We study the inclusive hadroproduction of D^0, D^+, D^star+, and D_s^+ mesons at leading order in the parton Reggeization approach endowed with universal fragmentation functions fitted to $e^+e^-$ annihilation data from CERN LEP1. We have…

High Energy Physics - Phenomenology · Physics 2015-03-18 Maxim Nefedov , Anton Karpishkov , Vladimir Saleev , Alexandera Shipilova

We present a calculation of the D^{*+}, D^+ and D^0 meson single inclusive production cross section for the Tevatron Run II. We use the FONLL approach in perturbative QCD, which, besides including the known next-to-leading order…

High Energy Physics - Phenomenology · Physics 2009-11-10 Matteo Cacciari , Paolo Nason

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 elaborate the inclusive production of single heavy-flavored hadrons in e^+e^- annihilation at next-to-leading order in the general-mass variable-flavor-number scheme. In this framework, we determine non-perturbative fragmentation…

High Energy Physics - Phenomenology · Physics 2008-11-26 T. Kneesch , B. A. Kniehl , G. Kramer , I. Schienbein

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

The main aim of this paper is to present new sets of non-perturbative fragmentation functions (FFs) for $D^0$ and $D^+$ mesons at next-to-leading (NLO) and, for the first time, at next-to-next-to-leading order (NNLO) in the…

High Energy Physics - Phenomenology · Physics 2019-12-17 Maral Salajegheh , S. Mohammad Moosavi Nejad , Maryam Soleymaninia , Hamzeh Khanpour , S. Atashbar Tehrani

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 summarize recent progress in the theoretical description of heavy-flavored-hadron inclusive production at next-to-leading order in the general-mass variable-flavor-number scheme. Specifically, we discuss the influence of finite-mass…

High Energy Physics - Phenomenology · Physics 2008-07-15 Bernd A. Kniehl

We review one-particle inclusive production of heavy-flavoured hadrons in a framework which resums the large collinear logarithms through the evolution of the FFs and PDFs and retains the full dependence on the heavy-quark mass without…

High Energy Physics - Phenomenology · Physics 2009-11-13 G. Kramer

We present a calculation of the next-to-leading order cross section for the inclusive hadroproduction of D and B mesons as a function of the transverse momentum and the rapidity in a massive variable flavor number scheme. We compare our…

High Energy Physics - Phenomenology · Physics 2015-06-25 B. A. Kniehl , G. Kramer , I. Schienbein , H. Spiesberger

In Phys. Rev. D 58, 014014 (1998) and 71, 094013 (2005), we determined non-perturbative D^0, D^+, D^{*+}, D_s^+, and Lambda_c^+ fragmentation functions, both at leading and next-to-leading order in the MS-bar factorization scheme, by…

High Energy Physics - Phenomenology · Physics 2014-11-18 Bernd A. Kniehl , Gustav Kramer

Several recent measurements of charmed hadron production in deep inelastic scattering at HERA are reviewed. Cross sections for the production of D mesons were measured and compared to NLO QCD predictions. The charm contribution to the…

High Energy Physics - Experiment · Physics 2015-03-17 Philipp Roloff

The process of charm quark fragmentation is studied using $D^{*\pm}$ meson production in deep-inelastic scattering as measured by the H1 detector at HERA. Two different regions of phase space are investigated defined by the presence or…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

We present predictions for single inclusive distributions of charmed mesons, relevant to the HERA experiments. Our results are based upon a computation that correctly incorporates mass effects up to the next-to-leading order level, and the…

High Energy Physics - Phenomenology · Physics 2009-11-07 S. Frixione , P. Nason

We have calculated the next-to-leading order cross sections for the inclusive production of D*-mesons in ep collisions at HERA for finite, although very small Q2. In this Q2-range, the same approximations as for photoproduction can be used.…

High Energy Physics - Phenomenology · Physics 2009-09-28 G. Kramer , H. Spiesberger

I present predictions for the inclusive production of D mesons at the CERN LHC in the general-mass variable-flavor-number scheme at next-to-leading order. Numerical results are compared to data where available, and uncertainties due to…

High Energy Physics - Phenomenology · Physics 2012-06-01 H. Spiesberger

We discuss production of charmed mesons as well as electrons/muons from semileptonic decays of charm and bottom mesons in proton-proton collisions at the LHC. The cross section for inclusive production of $c \bar c$ and $b \bar b$ pairs is…

High Energy Physics - Phenomenology · Physics 2013-07-01 Rafal Maciula , Antoni Szczurek

We compare the transverse momentum (p_T) distribution of inclusive light-charged-particle production measured by the CDF Collaboration at the Fermilab Tevatron with the theoretical prediction evaluated at next-to-leading order in quantum…

High Energy Physics - Phenomenology · Physics 2014-11-20 S. Albino , B. A. Kniehl , G. Kramer

Fermilab experiment E791, measuring charmed hadron production in $\pi^- A$ interactions at 500 GeV with high statistics, has observed a strong asymmetry between the hadroproduction cross sections for leading $D$ mesons which contain…

High Energy Physics - Phenomenology · Physics 2009-09-11 R. Vogt , S. J. Brodsky
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