Nuclear Theory·nucl-th
8 papers—5 primary·3 cross-listed
[Submitted on 30 Mar 2017] (cross-list from physics.pop-ph)
I will report below on a few examples of raving and insane (or maybe utterly genial) sentences that can be found in famous and otherwise admirable books of physics, because I genuinely believe it is amusing.
[Submitted on 30 Mar 2017] (cross-list from hep-ph)
Mujeeb Hasan🇮🇳 · Bhaswar Chatterjee🇮🇳 · Binoy Krishna Patra🇮🇳
We have investigated the properties of quarkonia in a thermal QCD medium in the background of strong magnetic field. For that purpose, we employ the Schwinger proper-time quark propagator in the lowest Landau level to calculate the one-loop gluon self-energy, which in the sequel gives the the effective gluon propagator. As an artifact of strong magnetic field approximation ( and ), the Debye mass for massless flavors is found to depend only on the magnetic field which is the dominant scale in comparison to the scales prevalent in the thermal medium. However, for physical quark masses, it depends on both magnetic field and temperature in a low temperature and high magnetic field but the temperature dependence is very meagre and becomes independent of temperature beyond a certain temperature and magnetic field. With the above mentioned ingredients, the potential between heavy quark () and anti-quark () is obtained in a hot QCD medium in the presence of strong magnetic field by correcting both short and long range components of the potential in real-time formalism. It is found that the long range part of the quarkonium potential is affected much more by magnetic field as compared to the short range part. This observation facilitates us to estimate the magnetic field beyond which the potential will be too weak to bind together. For example, the is dissociated at 10 and is dissociated at 100 whereas its excited states, and are dissociated at smaller magnetic field , , respectively.
[Submitted on 31 Mar 2017] (cross-list from hep-ph)
Matteo Rinaldi🇪🇸 · Sergio Scopetta🇮🇹 · Vicente Vento🇮🇹 · Marco Traini🇮🇹 · Federico Alberto Ceccopieri🇪🇸
Double parton distribution functions (dPDFs), measurable in hadron-hadron collisions and encoding information on how partons inside a proton are correlated among each other, could represent a new tool to explore the three dimensional partonic structure of hadrons. In the present contribution, results of the calculations of dPFDs are presented. Phenomenological calculations of experimental observables, sensitive to dPDFs are also discussed showing how double parton correlations could be estimated in the next LHC run.
first authorsco-authorsvia INSPIRE