Abstract
We calculate the atmospheric flux of prompt neutrinos, produced in decays of the charmed particles at energies beyond 1 TeV. Cross sections of the D mesons and {Lambda }^{+}_{c} baryons production in pA and pi A collisions are calculated in the phenomenological quark–gluon string model (QGSM) which is updated using recent measurements of cross sections of the charmed meson production in the LHC experiments. A new estimate of the prompt atmospheric neutrino flux is obtained and compared with the limit from the IceCube experiment, and with predictions of other charm production models.
Highlights
At present time the operating neutrino telescopes focus on the detection of astrophysical high-energy neutrino fluxes: IceCube, a cubic kilometer detector at the South Pole [1,2,3], ANTARES [4,5] located in the Mediterranean Sea, and underwater Baikal Gigaton Volume Detector (Baikal-GVD), a cubic kilometer-scale array, which is currently under construction in Lake Baikal [6,7]
N=0 where σn(s) is the cross section of the 2n-strings production, corresponding to the s-channel discontinuity of the multipomeron diagrams (n cut pomerons and arbitrary number of external pomerons taking part in the elastic rescattering); φnh(s, x) is the x-distribution of the hadron h produced in the fission of 2n quark–gluon strings: φ0h(s, x) accounts for the contribution of the diffraction dissociation of colliding hadrons, n = 1 corresponds to the strings formed by valence quarks quarks and diquarks, terms and antiquarks; x = 2 wp i/th√ns
The new calculation of the atmospheric neutrino flux from decays of the charmed particles is performed with updated version of the quark–gluon string model
Summary
At present time the operating neutrino telescopes focus on the detection of astrophysical high-energy neutrino fluxes: IceCube, a cubic kilometer detector at the South Pole [1,2,3], ANTARES [4,5] located in the Mediterranean Sea, and underwater Baikal Gigaton Volume Detector (Baikal-GVD), a cubic kilometer-scale array, which is currently under construction in Lake Baikal [6,7]. The diffuse flux of high-energy astrophysical neutrinos was revealed in 2013 at IceCube detector [8,9], and for 6 years about 100 neutrino events were detected in the IceCube experiment [2]. Another important discovery was made recently: on 22 Sept. High-energy neutrinos arising from decays of mesons and baryons, produced in hadronic collisions of cosmic rays with Earth’s atmosphere, compose the background against the neutrinos from distant astrophysical sources. Earth’s atmosphere are dominated by the soft processes with small momentum transfer, which are beyond the scope of perturbative technique of the quantum chromodynamics (QCD)
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