Glauber model for small system using anisotropic and inhomogeneous density profile of proton

Abstract

Recent studies reveal that at high energies, collisions of small system like $p+p$ gives signatures similar to that widely observed in heavy ion collisions hinting towards a possibility of forming a medium with collective behaviour. With this motivation, we have used the Glauber model, which is traditionally applied to heavy ion collisions, in small system using anisotropic and inhomogeneous density profile of proton and found that the proposed model reproduces the charged particle multiplicity distribution of $p+p$ collisions at LHC energies very well. Collision geometric properties like mean impact parameter, mean number of binary collisions ($⟨N_{coll}⟩$) and mean number of participants ($⟨N_{part}⟩$) at different multiplicities are determined. Having estimated $⟨N_{coll}⟩$, we have calculated nuclear modification-like factor ($R_{HL}$) in $p+p$ collisions. We also estimated eccentricity and elliptic flow as a function of charged particle multiplicity using the linear response to initial geometry.

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References in corpus (44)

• Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions
• Quark Gluon Plasma an Color Glass Condensate at RHIC? The perspective from the BRAHMS experiment
• The PHOBOS Perspective on Discoveries at RHIC
• Glauber Modeling in High Energy Nuclear Collisions
• The equation of state in (2+1)-flavor QCD
• New Forms of QCD Matter Discovered at RHIC
• Full result for the QCD equation of state with 2+1 flavors
• Observation of Long-Range Near-Side Angular Correlations in Proton-Proton Collisions at the LHC
• What RHIC Experiments and Theory tell us about Properties of Quark-Gluon Plasma ?
• Hadron production in nuclear collisions at RHIC and high density QCD
• Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions
• Centrality dependence of the charged-particle multiplicity density at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Fluctuating Glasma initial conditions and flow in heavy ion collisions
• 200 A GeV Au+Au collisions serve a nearly perfect quark-gluon liquid
• Centrality determination of Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV with ALICE
• Observation of long-range elliptic anisotropies in $\sqrt{s}=$13 and 2.76 TeV $pp$ collisions with the ATLAS detector
• Charged-particle multiplicity measurement in proton-proton collisions at $\sqrt{s}$ = 7 TeV with ALICE at LHC
• Evidence for collective multi-particle correlations in pPb collisions
• Phobos results on charged particle multiplicity and pseudorapidity distributions in Au+Au, Cu+Cu, d+Au, and p+p collisions at ultra-relativistic energies
• Initial state geometry and the role of hydrodynamics in proton-proton, proton-nucleus and deuteron-nucleus collisions
• Charged-particle nuclear modification factors in PbPb and pPb collisions at sqrt(s[NN]) = 5.02 TeV
• Centrality dependence of particle production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$= 5.02 TeV
• Results from the Relativistic Heavy Ion Collider
• The centrality dependence of elliptic flow, the hydrodynamic limit, and the viscosity of hot QCD
• GLISSANDO: GLauber Initial-State Simulation AND mOre
• Improved version of the PHOBOS Glauber Monte Carlo
• Multiplicity dependence of light-flavor hadron production in pp collisions at $\sqrt{s}$ = 7 TeV
• Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_NN)=200 GeV
• GLISSANDO 2: GLauber Initial-State Simulation AND mOre..., ver. 2
• Measurement of the inelastic proton-proton cross section at sqrt(s) = 7 TeV
• J/psi Production as a Function of Charged Particle Multiplicity in pp Collisions at sqrt{s} = 7 TeV
• Glauber modeling of high-energy nuclear collisions at sub-nucleon level
• Energy and Centrality Dependence of Rapidity Densities at RHIC
• Elliptic flow in proton-proton collisions at 7 TeV
• Estimates of hadron azimuthal anisotropy from multiparton interactions in proton-proton collisions at sqrt(s) = 14 TeV
• Title Quantum Optics and Heavy Ion Physics
• Elliptic flow in Pb+Pb collisions at sqrt{s_{NN}} = 2.76 TeV: hybrid model assessment of the first data
• Possible multiparticle ridge-like correlations in very high multiplicity proton-proton collisions
• Elliptic and triangular flow of identified particles at ALICE
• ALICE measurements of flow coefficients and their correlations in small (pp and p-Pb) and large (Xe-Xe and Pb-Pb) collision systems
• Manifestation of proton structure in the initial-state anisotropies in high-energy proton-proton collisions
• Hypothesis of quark binding by condensation of gluons in hadrons
• Hydrodynamic modeling of heavy-ion collisions
• Proton structure in high-energy high-multiplicity p-p collisions

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