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The pseudorapidity densities of transverse energy, the charged particle multiplicity and their ratios, $E_T/N_{ch}$, are estimated at mid-rapidity, in a statistical-thermal model based on chemical freeze-out criteria, for a wide range of…

高能物理 - 唯象学 · 物理学 2008-11-26 J. Cleymans , R. Sahoo , D. P. Mahapatra , D K Srivastava , S. Wheaton

The solar system's distant reaches exhibit a wealth of anomalous dynamical structure, hinting at the presence of a yet-undetected, massive trans-Neptunian body - Planet 9. Previous analyses have shown how orbital evolution induced by this…

地球与行星天体物理 · 物理学 2024-04-18 Konstantin Batygin , Alessandro Morbidelli , Michael E. Brown , David Nesvorny

The Large Hadron Collider (LHC) aims to inject oxygen (${}^{16}O$) ions in the next run into its experiments. This include the anticipated one-day physics run focusing on $OO$ collisions at center-of-mass energy \sqrt{s_{\mathrm{NN}} = 7…

高能物理 - 唯象学 · 物理学 2024-10-16 A. M. Khan , M. U. Ashraf , H. M. Alfanda , M. Uzair. Aslam

Transneptunian objects (TNOs) are bodies populating the Kuiper Belt and they are believed to retain the most pristine and least altered material of the solar system. The Herschel Open Time Key Program entitled "TNOs are Cool: A survey of…

The momentum-differential invariant cross sections of ${\pi^{0}}$ and $\eta$ mesons are reported for pp collisions at $\sqrt{s}$ = 13 TeV at midrapidity ($|y|<0.8$). The measurement is performed in a broad transverse-momentum range of…

高能物理 - 实验 · 物理学 2025-11-18 ALICE Collaboration

We explore the influence of in-medium nucleon-nucleon cross section, symmetry potential and impact parameter on isospin sensitive observables in intermediate-energy heavy-ion collisions with the ImQMD05 code, a modified version of Quantum…

Using the absolute detection calibration and abundant detections of the OSSOS (Outer Solar System Origin Survey) project, we provide population measurements for the main Kuiper Belt. For absolute magnitude $H_r<8.3$, there are 30,000…

地球与行星天体物理 · 物理学 2023-09-06 Jean-Marc Petit , Brett Gladman , J. J. Kavelaars , Michele T. Bannister , Mike Alexandersen , Kathryn Volk , Ying-Tung Chen

The most pristine remnants of the Solar system's planet formation epoch orbit the Sun beyond Neptune, the small bodies of the trans-Neptunian object populations. The bulk of the mass is in ~100 km objects, but objects at smaller sizes have…

地球与行星天体物理 · 物理学 2024-02-19 Andrew Shannon , Alain Doressoundiram , Françoise Roques , Bruno Sicardy , Quentin Kral

We discuss the probability distribution of relative speed $\Delta V$ of inertial particles suspended in a highly turbulent gas when the Stokes numbers, a dimensionless measure of their inertia, is large. We identify a mechanism giving rise…

流体动力学 · 物理学 2009-11-13 K. Gustavsson , B. Mehlig , M. Wilkinson , V. Uski

We introduce a novel search technique that can identify trans-neptunian objects in three to five exposures of a pointing within a single Hubble Space Telescope orbit. The process is fast enough to allow the discovery of candidates soon…

地球与行星天体物理 · 物理学 2015-05-19 Cesar I. Fuentes , Matthew J. Holman , David E. Trilling , Pavlos Protopapas

We present a survey on the rotational and physical properties of the dynamically low inclination Cold Classical trans-Neptunian objects. The Cold Classicals (CCs) are primordial planetesimals and contain relevant information about the early…

地球与行星天体物理 · 物理学 2019-05-29 Audrey Thirouin , Scott S. Sheppard

We present the first results of a comprehensive microscopic approach to describe nucleus-nucleus elastic collisions by means of an optical potential derived at first order in multiple-scattering theory and computed by folding the projectile…

核理论 · 物理学 2026-01-07 Matteo Vorabbi , Michael Gennari , Paolo Finelli , Carlotta Giusti , Petr Navrátil

We present the first photometric observations of trans-Neptunian objects (TNOs) taken with the Kepler space telescope, obtained in the course of the K2 ecliptic survey. Two faint objects have been monitored in specifically designed pixel…

地球与行星天体物理 · 物理学 2015-05-27 A. Pál , R. Szabó , Gy. M. Szabó , L. L. Kiss , L. Molnár , K. Sárneczky , Cs. Kiss

The inclusive J/$\psi$ production has been studied in Pn-Pb and pp collisions at the centre-of-mass energy per nucleon pair $\sqrt{s_{\rm NN}}=5.02$ TeV, using the ALICE detector at the CERN LHC. The J/$\psi$ meson is reconstructed, in the…

核实验 · 物理学 2017-05-23 ALICE Collaboration

We investigate the dependence of elliptic flows $v_2$ on transverse momentum $P_T$ for charged hadrons produced in nucleus-nucleus collisions at high energy by using a multi-source ideal gas model which includes the interaction contribution…

核理论 · 物理学 2018-05-04 Bao-Chun Li , Yuan-Yuan Fu , Er-Qin Wang , Fu-Hu Liu

The flux of astrophysical neutrinos is now measured with unprecedented accuracy and over several decades of energy spectrum. Their origin traces back to hadronic collisions between protons and nuclei in the cosmic rays with hydrogen and…

高能天体物理现象 · 物理学 2026-02-05 Luca Orusa , Mattia Di Mauro , Fiorenza Donato

We present a comprehensive NLO pQCD study on inclusive dijet photoproduction in ultraperipheral nucleus-nucleus collisions (UPCs). Our analysis takes into account the finite size of both the photon-emitting and the target nucleus, estimated…

高能物理 - 唯象学 · 物理学 2024-05-07 Kari J. Eskola , Vadim Guzey , Ilkka Helenius , Petja Paakkinen , Hannu Paukkunen

The description of final-state interactions (FSI) in the large phase space probed in neutrino experiments poses a great challenge. In neutrino experiments, which operate under semi-inclusive conditions, cascade models are commonly used for…

We study the nuclear stopping in high energy nuclear collisions using the constituent quark model. It is assumed that wounded nucleons with different number of interacted quarks hadronize in different ways. The probabilities of having such…

核理论 · 物理学 2008-11-26 T. K. Choi , M. Maruyama , F. Takagi