Correlation between heavy flavour production and multiplicity in pp and p-Pb collisions at high energy in the multi-pomeron exchange model

التفاصيل البيبلوغرافية
العنوان: Correlation between heavy flavour production and multiplicity in pp and p-Pb collisions at high energy in the multi-pomeron exchange model
المؤلفون: Feofilov, Grigory, Kovalenko, Vladimir, Puchkov, Andrei
المصدر: EPJ Web of Conferences 171, 18003 (2018)
سنة النشر: 2017
المجموعة: High Energy Physics - Phenomenology
Nuclear Theory
مصطلحات موضوعية: Nuclear Theory, High Energy Physics - Phenomenology
الوصف: The multiplicity dependence of heavy flavour production in pp-collisions at LHC energies is studied in the framework of the multi-pomeron exchange model. The model is introducing the string-string interaction collectivity effects in pp collisions, which modifies multiplicity and transverse momenta, leading to the non-trivial mean pt vs. multiplicity (_Nch - Nch) correlation. The string collectivity strength parameter is fixed by experimental data on multiplicity and transverse momentum correlation in a wide energy range (from ISR to LHC). The particles discrimination is implemented according to Schwinger mechanism taking into account the strong decays of hadron resonances. We demonstrate, that the faster-than-linear growth of the open charm production with the event charged particle multiplicity, observed in experimental pp high energy collisions, can be explained by the modification of the string tension due to the increasing overlap and interaction of quark-gluon strings. The model is extended for p-A interactions and the calculations for p-Pb collisions are performed.
Comment: 5 pages, 3 figures, SQM2017 Proceedings; minor revision, accepted for publication in EPJ Web of Conferences
نوع الوثيقة: Working Paper
DOI: 10.1051/epjconf/201817118003
URL الوصول: http://arxiv.org/abs/1711.00842
رقم الأكسشن: edsarx.1711.00842
قاعدة البيانات: arXiv
الوصف
DOI:10.1051/epjconf/201817118003