CHARM(R)-2
Measurement of the charm structure function F_{2,c)^{γ} of the photon at LEP
... the GRV-NLO parametrisation is used. These GRV-NLO parton distributions of the photon have been found to describe the OPAL jet data [15]. The NLO corrections are predicted to be small for the whole x range. The NLO ...
19
Open Charm Physics at BESIII
... We analyse the neutral and charged D modes using 2.91 fb −1 of data recorded at the DD threshold. A partial-wave analysis in the 5-dim phase space using 1667 ± 50 tagged decays is performed. Projections on the fit ...
6
Combined analysis of charm-quark fragmentation-fraction measurements
... The procedure is based on numerical fit with respect to observables of interest. The details on the implementation are in Ref. [1] and only a brief description is given below. Basically, for the set of measurements the ...
6
Heavy flavour production at HERA
... open charm and beauty production in deep-inelastic electron-proton scattering at HERA provide important input for stringent tests of the theory of ...the charm and beauty quarks: fixed-flavour-number-scheme ...
6
Open charm studies at Belle
... [1] C. Patrignani et al. (Particle Data Group), Chin. Phys. C 40, 100001 (2016). [2] G. Pakhlova et al. (Belle Collaboration), Phys. Rev. D 77, 011103 (2008). [3] K. Abe et al. (Belle Collaboration), Phys. Rev. ...
6
Recent progress on intrinsic charm
... intrinsic charm (IC) empirically and determining an overall numerical magnitude for its contribution to the proton wave function has been something of a Gordian ...involving charm not generated through the ...
8
Charm physics at ATLAS
... With early Run-2 data ATLAS has performed a measurement of the fraction of J/ψ pro- duced through the non-prompt mechanism at √ s = 13 TeV. It is shown in Fig. 2, along with the comparison to earlier ...
8
Charm mixing at LHCb
... Quantum-mechanical mixing between neutral meson par- ticle and antiparticle flavour eigenstates provides impor- tant information about electroweak interactions and the Cabibbo-Kobayashi-Maskawa matrix, as well as the ...
5
Old lady charm: a comment
... (On the role of entry barriers in Chicago antitrust analysis more infra in Section 3.) In my view, the self-asserted Classical and Marshallian pedigree of Chicago economics derives from a rational reconstruction of the ...
12
The Italian Tau/charm project
... The possibility to drive a SASE X-ray FEL using the 2.4 GeV /charm Linac has been studied. To achieve an energy of 6 GeV (for 1.5 and 3 Angstrom photon wavelength) additional Linac sections can be installed at the ...
5
Charmed meson production at LHCb
... The total number of signal events is extracted from a two-dimensional likelihood fit to the invariant masses of the Υ and D candidates. The requirement that the Υ and D candidate must be consistent with originating from a ...
6
Charmed states and flavour symmetry breaking
... For u, d, s quarks, have developed a method to approach the physical point on a path starting from a point on the SU(3) flavour symmetric line. We have developed precise SU(3) flavour symmetry breaking expansions – nothing ...
8
Charm and Beauty in Photoproduction at HERA
... The sources for systematic uncertainties are the trigger efficiencies, the muon identification effi- ciency, the track efficiency, the integrated luminosity, the resolution of the δ parameter, the resolution of the jet ...
8
Charm physics
... ing exclusive final states at 2.76 and 7 TeV [5] and in- clusive (electron) states at 7 TeV [6], and at ATLAS at 7 TeV using exclusive final states [7] and in jets using D ∗ final states [8]. The measured cross sections ...
5
Conservational and Sequential Charm Hadronization in Heavy Ion Collisions
... the charm conservation and charm hadronization mech- anism in Heavy Ion ...of charm conservation in charmed hadron production ...the charm conservation is taken into account, the strangeness ...
5
New vistas in charm production
... It is usually assumed that the c/¯ c → D fragmentation is responible for production of charmed mesons. In leading order gg → c¯ c is dominant partonic subprocess. The contribution of q q ¯ → c¯ c is usually much smaller. ...
10
Diffusion of charm and beauty in the Glasma
... both charm and beauty with the background gluon ...both charm and beauty, although quantitatively beauty experiences a smaller effect than charm because of its larger ...
7
Charming loops in exclusive rare FCNC B-decays
... Figure 6. A schematic calculation of the B-decay form factor in QCD: the leading QCD contribution given in terms of the B-meson quark-antiquark vertex ⟨0|b(0)q(x)|0⟩. The s-quark line between the points x = 0 and y ...
15
Correlations of Heavy Quarks in Hot Deconfined Medium
... ξ ξ ′ = κδ δ − ′ (2) κ is the diffusion coefficient of heavy quarks in momentum space, which is connected with spatial diffusion coefficient D by κ = 2 T 2 D . The diffusion coefficient have given by ...
5
The Charm and Beauty of Strong Interactions
... Flavor physics has entered a new era with the plethora of high-precision luminosity measurements at LHCb and provides a fertile playground for indirect tests of the Standard Model as well as an opportune field for ...
11