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Trans-Neptunian objects (TNOs) with diameter greater than 100 km currently moving in not too eccentric orbits could be formed directly by the contraction of large rarefied condensations. Along with the gravitational influence of planets,…

天体物理学 · 物理学 2007-05-23 Sergei I. Ipatov , Leonid M. Ozernoy

We report new results from quantum calculations of energy-transfer processes taking place in interstellar environments and involving two newly observed molecular species: C$_5$N$^-$ and C$_7$N$^-$ in collision with He atoms and the p-H$_2$…

The observed physical clustering of the orbits of small bodies in the distant Kuiper Belt (TNOs) has recently prompted the prediction of an additional planet in the outer solar system. Since the initial posing of the hypothesis, the effects…

地球与行星天体物理 · 物理学 2020-11-04 Tali Khain , Juliette Becker , Fred C. Adams

We analyze $J/\psi-$ production in nucleon-nucleon collisions near threshold in the framework of a general model independent formalism, which can be applied to any reaction $N+N\to N+N+V^0$, where $V^0=\omega$, $\phi$, or $J/\psi$. Such…

核理论 · 物理学 2008-11-26 Michail P. Rekalo , Egle Tomasi-Gustafsson

We present results of 6 years of observations, reduced and analyzed with the same tools in a systematic way. We report completely new data for 15 objects, for 5 objects we present a new analysis of previously published results plus…

地球与行星天体物理 · 物理学 2015-05-18 A. Thirouin , J. L. Ortiz , R. Duffard , P. Santos-Sanz , F. J. Aceituno , N. Morales

The fusion/capture cross sections (CSs) of complex nuclei (heavy ions) are often described in the literature within two approaches: i) the coupled channels model accounting for structure of the colliding nuclei and ii) trajectory models…

核理论 · 物理学 2023-06-06 Maria V. Chushnyakova

Simulations of relativistic heavy-ion collisions within the three-fluid model employing a purely hadronic equation of state (EoS) and two versions of the EoS involving deconfinement transition are presented. The latter are an EoS with the…

核理论 · 物理学 2014-01-23 Yu. B. Ivanov

We have studied the transverse-momentum ($p_{\rm T}$) dependence of the inclusive J/$\psi$ production in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV, in three center-of-mass rapidity ($y_{\rm cms}$) regions, down to zero $p_{\rm T}$.…

核实验 · 物理学 2016-03-18 ALICE Collaboration

The Kepler mission enabled us to look at the intrinsic population of exoplanets within our galaxy. In period-radius space, the distribution of the intrinsic population of planets contains structure that can trace planet formation and…

地球与行星天体物理 · 物理学 2024-04-24 Anne Dattilo , Natalie M. Batalha

We revisit the computation of a probability of collision in the context of automotive collision avoidance (also referred to as conflict detection in other contexts). After reviewing existing approaches to the definition and computation of a…

系统与控制 · 电气工程与系统科学 2022-06-20 Richard Altendorfer , Christoph Wilkmann

Transverse momentum spectra of identified particles produced in heavy-ion collisions at the Large Hadron Collider are described with relativistic fluid dynamics. We perform a systematic comparison of experimental data for pions, kaons and…

高能物理 - 唯象学 · 物理学 2020-06-18 D. Devetak , A. Dubla , S. Floerchinger , E. Grossi , S. Masciocchi , A. Mazeliauskas , I. Selyuzhenkov

Possible scenarios based on available experimental data and phenomenological knowledge of the GeV energy region are extended to the TeV energy region in the framework of the weighted superposition mechanism of soft and semi-hard events. KNO…

高能物理 - 唯象学 · 物理学 2011-03-23 Roberto Ugoccioni , Alberto Giovannini

A model of the collisional kinetics of energetic hydrogen atoms, molecules, and ions in pure H$_2$ discharges is used to predict H$_\alpha$ emission profiles and spatial distributions of emission from the cathode regions of low-pressure,…

等离子体物理 · 物理学 2015-05-20 A. V. Phelps

We report a study of final states containing a W boson and hadronic jets, produced in proton-proton collisions at a center-of-mass energy of 7 TeV. The data were collected with the ATLAS detector at the CERN LHC and comprise the full 2010…

高能物理 - 实验 · 物理学 2012-08-27 ATLAS Collaboration

Based on the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model, we systematically investigate the in-medium effects of nucleon-nucleon ($NN$) cross sections on nucleonic and pionic observables in heavy-ion collisions, employing…

核理论 · 物理学 2026-05-26 Shuochong Han , Xinle Shang , Wei Zuo , Gaochan Yong , Ang Li

We provide a fast method for computing constraints on impactor pre-impact orbits, applying this to the late giant impacts in the Solar System. These constraints can be used to make quick, broad comparisons of different collision scenarios,…

地球与行星天体物理 · 物理学 2017-11-16 Alan P. Jackson , Travis S. J. Gabriel , Erik I. Asphaug

Unlike the Solar System planets, thousands of smaller bodies beyond Neptune orbit the Sun on eccentric ($e >$ 0.1) and ($i>$ 3$^\circ$) orbits. While migration of the giant planets during the early stages of Solar System evolution can…

地球与行星天体物理 · 物理学 2024-09-06 Susanne Pfalzner , Amith Govind , Simon Portegies Zwart

The goal of the Herschel Open Time Key programme "TNOs are Cool!" is to derive the physical and thermal properties for a large sample of Centaurs and trans-Neptunian objects (TNOs), including resonant, classical, detached and scattered disk…

In this letter, we present the study of the role of octupole deformation in non-spherical nuclei in most-central Pb--Pb collisions at the LHC energy regime. The sensitivity of octupole deformation $\beta_3$ to the QGP observables is…

高能物理 - 唯象学 · 物理学 2025-05-07 Saraswati Pandey , B. K. Singh

The comparisons of the charged-particle multiplicity and the average transverse momentum distributions on the scaled multiplicity, KNO scale, using the results of the ATLAS collaboration at the LHC are presented. These distributions were…

高能物理 - 实验 · 物理学 2022-06-08 Yuri Kulchitsky , Pavel Tsiareshka