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Non-linear effects in hadronic interactions are treated by means of enhanced pomeron diagrams, assuming that pomeron-pomeron coupling is dominated by soft partonic processes. It is shown that the approach allows to resolve a seeming…

High Energy Physics - Phenomenology · Physics 2011-07-19 S. Ostapchenko

Here we present an analysis of the evolution of Majorana corner modes realizing in a higher-order topological superconductor (HOTSC) on a square lattice under the influence of local Coulomb repulsion. The HOTSC spectral properties were…

Mesoscale and Nanoscale Physics · Physics 2023-03-15 S. V. Aksenov , A. D. Fedoseev , M. S. Shustin , A. O. Zlotnikov

The bulk of inelastic hadronic interactions is characterized by longitudinal phase space and exponentially damped transverse momentum spectra. A simple model with only a single adjustable parameter is presented, making it a very convenient…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Schmelling

The suppression of high momentum particles in heavy-ion collisions in comparison to elementary reactions is one of the main indications for the formation of a quark-gluon plasma. In recent studies, full jets are being reconstructed and…

Nuclear Theory · Physics 2020-03-25 Philipp Dorau , Jean-Bernard Rose , Daniel Pablos , Hannah Elfner

The theory of heavy ion single charge exchange reactions is reformulated. In momentum space the reaction amplitude factorizes into a product of projectile and target transition form factors, folded with the nucleon-nucleon isovector…

Nuclear Theory · Physics 2018-10-31 Horst Lenske , Jessica I. Bellone , Maria Colonna , Jose-Antonio Lay

We investigate the transverse dynamics in Au+Au collisions at \sqrt{s_NN}=200 GeV by emphasis upon the interplay between soft and hard components through p_T dependences of particle spectra, ratios of yields, suppression factors, and…

Nuclear Theory · Physics 2009-11-10 Tetsufumi Hirano , Yasushi Nara

Hadron-nucleus collisions at LHC energies are studied by including explicitly semi-hard parton rescatterings in the collision dynamics. Under rather general conditions, we obtain explicit formulae for the semi-hard cross-section and the…

High Energy Physics - Phenomenology · Physics 2009-11-07 A. Accardi , D. Treleani

Partonic intrinsic transverse momentum can be essential for the explanation of large single spin asymmetries in hadronic reactions in the framework of perturbative QCD. The status of an ongoing program investigating in a consistent way the…

High Energy Physics - Phenomenology · Physics 2009-11-07 U. D'Alesio , F. Murgia

In high energy nucleus-nucleus collisions, a transient state of thermalized, hot and dense matter governed by Quantum Chromodynamics is produced. Properties of this state are reflected in the bulk low transverse momentum (P_T) hadron…

High Energy Physics - Phenomenology · Physics 2010-01-15 Thorsten Renk

Transverse spectra of both jets and hadrons obtained in high-energy $pp$ and $p\bar p $ collisions at central rapidity exhibit power-law behavior of $1/p_T^n$ at high $p_T$. The power index $n$ is 4-5 for jet production and is 6-10 for…

High Energy Physics - Phenomenology · Physics 2015-06-24 Cheuk-Yin Wong , Grzegorz Wilk , Leonardo J. L. Cirto , Constantino Tsallis

The role of inelastic final-state interactions in CP asymmetries and branching ratios is investigated in certain chosen single isospin two-body hadronic B decays. Treating final-state interactions through Pomeron and Regge exchanges, we…

High Energy Physics - Phenomenology · Physics 2016-08-25 A. N. Kamal , C. W. Luo

The boundary of a boson system plays an important role in determining the momentum distribution of the bosons. For a boson system with a cylindrical boundary, the momentum distribution is enhanced at high transverse momenta but suppressed…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. G. -H. Mostafa , C. Y. wong

Recently we have conjectured that (in-)elastic collisions of (pre-)hadronic high momentum states with the bulk of hadrons in the late fireball might substantially account for the attenuation of the high transverse momentum hadrons at RHIC.…

High Energy Physics - Phenomenology · Physics 2009-11-10 W. Cassing , K. Gallmeister , C. Greiner

Modifications of jets in the existence of a hot and dense QCD medium have recently attracted a lot of attentions. In this talk, we demonstrate how jet-medium interactions change the behavior of jets by offering examples of inclusive jet and…

Nuclear Theory · Physics 2015-06-11 Ben-Wei Zhang , Yuncun He , Enke Wang

The transverse momentum spectra of identified particles produced in high energy proton-proton ($p+p$) collisions are empirically described by a new method with the framework of participant quark model or the multisource model at the quark…

High Energy Physics - Phenomenology · Physics 2020-11-03 Pei-Pin Yang , Fu-Hu Liu , Raghunath Sahoo

Soft-collinear effective theory is generalized to include soft massless quarks in addition to collinear fields. This extension is necessary for the treatment of interactions with the soft spectator quark in a heavy meson. The power counting…

High Energy Physics - Phenomenology · Physics 2010-04-05 Richard J. Hill , Matthias Neubert

The increase of the centre-of-mass energy of the Large Hadron Collider (LHC) to 13 TeV has opened up a new energy regime. Final states including high-momentum multi-jet signatures often dominate beyond standard model phenomena, in…

High Energy Physics - Experiment · Physics 2016-06-28 Clemens Lange

We discuss how the main features of high-energy `soft' and `semihard' pp collisions may be described in terms of parton cascades and multi-Pomeron exchange. The interaction between Pomerons produces an effective infrared cutoff, k_sat, by…

High Energy Physics - Phenomenology · Physics 2011-10-11 A. D. Martin , M. G. Ryskin , V. A. Khoze

Preliminary data by the STAR collaboration at the BNL Relativistic Heavy Ion Collider shows that the elliptic flow, $v_2$, and the average transverse momentum, $\langle p_t \rangle$, of final-state hadrons produced in high-multiplicity…

Nuclear Theory · Physics 2021-02-23 Giuliano Giacalone

Transverse momentum $p_T$ spectra of final state particles produced in high energy heavy-ion collision can be divided into two distinct regions based on the difference in the underlying particle production process. We have provided a…

High Energy Physics - Phenomenology · Physics 2021-03-26 Rohit Gupta , Satyajit Jena