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相关论文: Charmed mesons and leptons from semileptonic decay…

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We calculate $c\bar{c}c\bar{c}$ and $b\bar{b}b\bar{b}$ production cross section in Double Parton Scattering (DPS) processes at the energies of LHC. In our calculation we include saturation effects in the gluon distribution. For charm…

高能物理 - 唯象学 · 物理学 2013-11-12 E. R. Cazaroto , V. P. Gonçalves , F. S. Navarra

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…

高能物理 - 唯象学 · 物理学 2016-10-18 Rafal Maciula , Antoni Szczurek

Measurements of the production cross sections of prompt ${\rm D^0}$, ${\rm D^+}$, ${\rm D^{\ast +}}$, ${\rm D_s^+}$, ${\rm \Lambda_{c}^{+}}$, and ${\rm \Xi_{c}^{+}}$ charm hadrons at midrapidity in proton$-$proton collisions at…

高能物理 - 实验 · 物理学 2024-01-09 ALICE Collaboration

To extract information about polarized gluons in the proton, production of charmed hadrons, in particular, \Lambda_c^+ baryon in pp collisions was studied. We calculated the transverse momentum distribution and the pseudo-rapidity…

高能物理 - 唯象学 · 物理学 2009-11-07 Toshiyuki Morii , Kazumasa Ohkuma

We perform a non-perturbative lattice calculation of the decay rates for inclusive semi-leptonic decays of charmed mesons. In view of the long-standing tension in the determination of the CKM matrix elements $|V_{ub}|$ and $|V_{cb}|$ from…

高能物理 - 格点 · 物理学 2022-12-01 Ryan Kellermann , Alessandro Barone , Shoji Hashimoto , Andreas Jüttner , Takashi Kaneko

We investigate whether the triple-parton scattering effects can be observed in open charm production in proton-proton collisions at the LHC. We use so-called factorized Ansatz for calculations of hard multiple-parton interactions. The…

高能物理 - 唯象学 · 物理学 2017-09-13 Rafal Maciula , Antoni Szczurek

Fragmentation functions are typically parametrised exploiting measurements performed in $\mathrm{e^+e^-}$ and $\mathrm{ep}$ collisions, under the assumption of universality across collision systems. Measurements of charm-hadron yields in…

高能物理 - 实验 · 物理学 2024-10-28 Samuele Cattaruzzi

We consider the production of electroweak $Z$ or $W^\pm$ bosons associated with $J/\psi$ mesons at the LHC conditions. Our attention is focused on new partonic subprocesses which yet have never been considered in the literature, namely, the…

高能物理 - 唯象学 · 物理学 2021-08-25 S. P. Baranov , A. V. Lipatov , A. A. Prokhorov

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…

高能物理 - 实验 · 物理学 2017-03-16 Oleksandr Zenaiev

Open charm production in proton-proton collisions represents an important tool to investigate some of the most fundamental aspects of Quantum Chromodynamics, from the partonic mechanisms of heavy-quark production to the process of…

We present predictions for the inclusive production of charmed hadrons at the CERN LHC in the general-mass variable-flavor-number scheme at next-to-leading order. Detailed numerical results are compared to data where available, or presented…

高能物理 - 唯象学 · 物理学 2015-06-04 B. A. Kniehl , G. Kramer , I. Schienbein , H. Spiesberger

We study $D$ - meson production at forward rapidities taking into account the non - linear effects in the QCD dynamics and the intrinsic charm component of the proton wave function. The total cross section, the rapidity distributions and…

高能物理 - 唯象学 · 物理学 2018-03-09 F. Carvalho , A. V. Giannini , V. P. Goncalves , F. S. Navarra

The open heavy-flavour hadron measurements in proton--proton and proton--lead collisions give insight into the charm production and hadronization mechanisms. In this contribution, the latest measurements of the production cross section of…

核实验 · 物理学 2021-09-14 Annalena Sophie Kalteyer

We discuss production of two pairs of $c \bar c$ in proton-proton collisions at the LHC. Both double-parton scattering (DPS) and single-parton scattering (SPS) contributions are included in the analysis. Each step of DPS is calculated…

高能物理 - 唯象学 · 物理学 2013-05-08 Rafal Maciula , Antoni Szczurek

We study inclusive charm and bottom production, for both D and B mesons, in p-Pb collisions at the LHC. Numerical results for p_T-differential production cross sections are obtained at next-to-leading-order in the general-mass…

高能物理 - 唯象学 · 物理学 2017-11-01 G. Kramer , H. Spiesberger

With the development of lattice QCD in recent years, a determination of decay rates for inclusive semileptonic decays from lattice correlators now seems viable. We report on the calculation of the inclusive semileptonic decay of the $D_s$…

高能物理 - 格点 · 物理学 2024-05-13 Ryan Kellermann , Alessandro Barone , Shoji Hashimoto , Andreas Jüttner , Takashi Kaneko

We discuss diffractive production of heavy mesons at the LHC. The differential cross sections for single- and central-diffractive mechanisms for $c\bar c$ pair production are calculated in the framework of the Ingelman-Schlein model…

高能物理 - 唯象学 · 物理学 2016-07-01 Marta Luszczak , Antoni Szczurek

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…

高能物理 - 唯象学 · 物理学 2012-06-01 H. Spiesberger

We present results of our theoretical investigation of double-parton scattering (DPS) effects in production of heavy flavour mesons (charm and bottom). We discuss production of charm-bottom and bottom-bottom meson-meson pairs in…

高能物理 - 唯象学 · 物理学 2018-12-05 Rafal Maciula

New results from the experiments ALEPH, DELPHI, L3, and OPAL on heavy quark production in gammagamma collisions are presented. Inclusive charm and bottom production are investigated at LEP~2 energies. The total and differential cross…

高能物理 - 实验 · 物理学 2011-01-25 Armin Böhrer