High-energy interactions

Capdevielle, J. N.

doi:10.1007/bf02506659

Cited by 16 publications

(14 citation statements)

References 25 publications

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“…Therefore, the approach of microscopic models starts from the parton distribution functions, distinguished for valence quarks and diquarks, sea quarks and gluons. In the case of p-p collisions, there are common features between models used in accelerators or in cosmic rays simulations, respectively models such as Dual Parton Model, Phojet, Pythia on one side, models like QGSJet, Sybill on the other side [9]. The geometrical and statistical models such as the cluster model GENCL of UA5 [10] are more connected with the phenomenological features of the experimental data and built on analogy with quantum optics.…”

Section: Theoretical Models and Phenomenological Collision Generatorsmentioning

confidence: 99%

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Multiple production up to √s = 13 TeV with the generator GHOST adapted to cosmic ray simulation

et al. 2017

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Abstract.The model HDPM of CORSIKA has been updated and developed on the base of the recent measurements by LHCb, CMS, TOTEM... The new model GHOST involving a 4-source production reproduces correctly the pseudorapidity distributions of charged secondaries and has been testified with the data in the mid and forward rapidity region, especially in the complex case of TOTEM and also with the recent measurements of CMS up to √ s = 13 TeV (9.2 · 10 16 eV). Special calculations have been devoted to the semi-inclusive data playing an important role in the cosmic ray simulation (fluctuations in the earliest collisions, individual cascades and remarkable events). Taking into account the violation of KNO scaling, the negative binomial distribution has been used pointing out an asymptotic behaviour of total charged multiplicities at primary energies exceeding 40 TeV (7 · 10 17 eV). The interpretation of the most recent measurements suggests for EAS generated by primary protons a larger production of muons and a cascade maximum at higher altitude than previously assumed.

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Section: Theoretical Models and Phenomenological Collision Generatorsmentioning

confidence: 99%

“…A large part of cosmic ray remarkable events such as coplanar emission [17] or spikes [9] have been observed in different conditions (mountain altitude or stratosphere). They appear mainly between 1 PeV and 100 PeV in laboratory frame being covered now by the LHC data up to √ s = 13 TeV.…”

Section: Cosmic Ray Data Related With the Lhc Energy Domainmentioning

confidence: 99%

Multiple production up to √s = 13 TeV with the generator GHOST adapted to cosmic ray simulation

et al. 2017

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Section: Microscopic and Statistical Modelsmentioning

confidence: 99%

“…Similarly, the Hybrid Dual Parton Model (HDPM) has been inspired by the most simple double pomeron structure of DPM: it represents the pair of quark-diquark chains stretched between the valence quark and diquark of the projectile and the target by one pair of gaussian functions with a correct overlap to reproduce the expected rapidity distribution with the profile of one plateau with gaussianshaped wings [3]. Like in the International Court of Justice of the Hague, the recent results of very energetic colliders select the most reliable models and dictate further improvements.…”

Section: Microscopic and Statistical Modelsmentioning

confidence: 99%

Updating Monte Carlo collision generators with LHC data up to √s= 8 TeV

Capdevielle

2015

EPJ Web of Conferences

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Abstract. Monte Carlo collision generators describing the multiple production of secondaries in very high energy interactions can be updated taking into account the LHC data available now up to √ s = 8 TeV (3.2 · 10 16 eV). The energy range of the so-called knee energy region in cosmic ray physics (2 · 10 15 -10 17 eV) for proton primaries will soon be completely covered by the LHC data. An extension of the model HDPM of CORSIKA has been developed on a base of the recent measurements by LHCb, CMS, TOTEM... The new model GHOST involving a 4-source production is presented here. It correctly reproduces the pseudo-rapidity distributions of charged secondaries and can help the approach of the data in the mid and forward rapidity region, especially in the complex case of TOTEM. In parallel, simulations of cascades and EAS are also carried out in order to understand unexplained results in energy distributions of very high energy γ 's.

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“…The possible existence of strange stars which are made entirely of deconfined u, d and s quarks is one of the most intriguing aspects of modern astrophysics. There have been some reports of events with A ≃ 350-500 and Z ≃ 10-20 in cosmic ray experiments [2]- [4], the so-called exotic cosmic ray events. Also, recent studies have shown that X-ray burst sources are likely strange star candidates [5]- [8].…”

Section: Introductionmentioning

confidence: 99%

Strange quark matter in a chiral SU(3) quark mean field model

et al. 2003

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We apply the chiral SU(3) quark mean field model to investigate strange quark matter. The stability of strange quark matter with different strangeness fraction is studied. The interaction between quarks and vector mesons destabilizes the strange quark matter. If the strength of the vector coupling is the same as in hadronic matter, strangelets can not be formed. For the case of β equilibrium, there is no strange quark matter which can be stable against hadron emission even without vector meson interactions.

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High-energy interactions

Cited by 16 publications

References 25 publications

Multiple production up to √s = 13 TeV with the generator GHOST adapted to cosmic ray simulation

Multiple production up to √s = 13 TeV with the generator GHOST adapted to cosmic ray simulation

Updating Monte Carlo collision generators with LHC data up to √s= 8 TeV

Strange quark matter in a chiral SU(3) quark mean field model

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