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It is demonstrated that the fragmentation functions at large momentum fraction play a key role in hard hadron production from relativistic proton-proton collisions. We find that this region of the fragmentation functions is not strongly…

High Energy Physics - Phenomenology · Physics 2009-11-07 Xiaofei Zhang , George Fai , Peter Levai

Higher moments of multiplicity fluctuations of hadrons produced in central nucleus-nucleus collisions are studied within the hadron-resonance gas model in the canonical ensemble. Exact conservation of three charges, baryon number, electric…

Nuclear Theory · Physics 2017-09-27 Jing-Hua Fu

The transverse momentum spectra of hadrons is calculated from the unintegrated gluon distribution (UGD) within the $k_T$-factorization framework at small $x$. Starting from $pp$ collisions, the modification caused by the nuclear medium is…

High Energy Physics - Phenomenology · Physics 2021-03-03 L. S. Moriggi , G. M. Peccini , M. V. T. Machado

We construct a formula for proton-nucleus total reaction cross section as a function of the mass and neutron excess of the target nucleus and the proton incident energy. We deduce the dependence of the cross section on the mass number and…

Nuclear Theory · Physics 2008-11-26 Kei Iida , Akihisa Kohama , Kazuhiro Oyamatsu

Inclusive electron scattering from nuclei at low momentum transfer (corresponding to x>1) and moderate Q^2 is dominated by quasifree scattering from nucleons. In the impulse approximation, the cross section can be directly connected to the…

Nuclear Experiment · Physics 2017-08-23 J. Arrington

We explore consequences of the existence of gluonic hot spots inside the proton for coherent and incoherent exclusive vector meson production cross sections in deep inelastic scattering. By working in the dilute limit of the Color Glass…

High Energy Physics - Phenomenology · Physics 2022-11-09 S. Demirci , T. Lappi , S. Schlichting

The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. For spherical nuclei close to the dripline the statistical model (Hauser-Feshbach) approach is not applicable and direct…

Nuclear Theory · Physics 2009-10-30 T. Rauscher , K. -L. Kratz , H. Oberhummer , J. Dobaczewski , P. Moeller , M. Sharma

Single and pair top-quark production in proton-lead (p-Pb) and lead-lead (Pb-Pb) collisions at the CERN Large Hadron Collider (LHC) and future circular collider (FCC) energies, are studied with next-to-leading-order perturbative QCD…

High Energy Physics - Phenomenology · Physics 2015-05-20 David d'Enterria , Krisztian Krajczar , Hannu Paukkunen

We show that introducing subnucleon scale fluctuations constrained by HERA diffractive $J/\Psi$ production data significantly affects the incoherent diffractive $J/\Psi$ production cross section in ultraperipheral heavy ion collisions. We…

High Energy Physics - Phenomenology · Physics 2017-08-10 Heikki Mäntysaari , Björn Schenke

The reaction mechanism of projectile fragmentation at intermediate energies has been investigated observing the target dependence of the production cross sections of very neutron-rich nuclei. Measurement of longitudinal momentum…

Nucleus-nucleus scattering is studied in the local Reggeon Field Theory in the quasi-classical approximation with non-eikonal boundary conditions corresponding to the Glauber picture at low energies. Comparison with the commonly used…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. A. Braun

We show that the boundary between quark-dominated and hadron-dominated regions of nuclear structure may be blurred by multi-nucleon quark clusters arising from color percolation. Recent experiments supporting partial percolation in cold…

Nuclear Theory · Physics 2011-08-04 Hans J. Pirner , James P. Vary

Using the dinuclear system concept we present calculations of production cross sections for the heaviest nuclei. The obtained results are in a good agreement with the experimental data. The experimentally observed rapid fall-off of the…

Nuclear Theory · Physics 2009-10-30 G. G. Adamian , N. V. Antonenko , W. Scheid , V. V. Volkov

The light top-squark $\sto$ may be the lightest squark and its lifetime may be `long enough' in a kind of SUSY models which have not been ruled out yet experimentally, so colorless `supersymmetric hadrons (superhadrons)' $(\sto \bar{q})$…

High Energy Physics - Phenomenology · Physics 2008-11-26 Chao-Hsi Chang , Jiao-Kai Chen , Zhen-Yun Fang , Bing-Quan Hu , Xing-Gang Wu

We calculate the neutrino nucleus cross sections for charged lepton production relevant for the experiments proposed with the stopped muon neutrinos using neutron spallation source facility. The calculations are done in local density…

Nuclear Theory · Physics 2008-11-26 M. Sajjad Athar , Shakeb Ahmad , S. K. Singh

We have studied the feasibility of the experimental determination of the width of a $D$ meson in a nuclear medium by using the method of the nuclear transparency. The cross section for inclusive production of a $D^+$ in different nuclei is…

Nuclear Theory · Physics 2025-01-08 Victor Montesinos , Natsumi Ikeno , Eulogio Oset , Miguel Albaladejo , Juan Nieves , Laura Tolos

Within the Color Glass Condensate framework, we demonstrate that exclusive vector meson production at high energy is sensitive to the geometric deformation of the target nucleus and subnucleon scale fluctuations. Deformation of the nucleus…

Nuclear Theory · Physics 2023-12-13 Heikki Mäntysaari , Farid Salazar , Björn Schenke , Chun Shen , Wenbin Zhao

We argue that semi-inclusive photo-production of a pair of hard jets via coherent diffraction in nucleus-nucleus ultra-peripheral collisions at high energy is a golden channel to study gluon saturation. The dominant contribution is the…

High Energy Physics - Phenomenology · Physics 2023-04-26 E. Iancu , A. H. Mueller , D. N. Triantafyllopoulos , S. Y. Wei

We calculate the cross section of a single inclusive gluon production in deep inelastic scattering at very high energies in the saturation regime, where the parton densities inside hadrons and nuclei are large and the evolution of structure…

High Energy Physics - Phenomenology · Physics 2009-11-07 Yuri V. Kovchegov , Kirill Tuchin

The production of various heavy-quark-containing baryons in electron-positron annihilation is considered. On the basis of exact formulas that we obtained previously within full perturbation theory, new numerical calculations of the…

High Energy Physics - Phenomenology · Physics 2015-06-25 S. P. Baranov , V. L. Slad