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The electromagnetic field is typically measured by the charged particle motion observation. Generally in the experiments, position, velocity and other physical parameters concerning relativistic particle beams, are estimated evaluating the…

经典物理 · 物理学 2014-06-19 Giuseppina Modestino

People of a race appear different but share a 'phenotypic trait' due to a common genetic origin. Mineral particles are like humans: they appear different despite having a same geological origin. Then, do the particles have some sort of…

软凝聚态物质 · 物理学 2022-06-13 Seung Jae Lee , Moochul Shin , Chang Hoon Lee , Priya Tripathi

The physical characterization of potentially hazardous asteroids (PHAs) is important for impact hazard assessment and evaluating mitigation options. Close flybys of PHAs provide an opportunity to study their surface photometric and spectral…

We introduce a novel multi-parameter rating methodology for comparing theoretical models with experimental data in heavy-ion collisions, addressing limitations of the global $\chi^2$/ndf criterion. The methodology divides phase space into…

高能物理 - 唯象学 · 物理学 2026-03-26 S. O. Omelchenko , V. M. Pugatch

We propose two different and complementary observables for singling out possible signals of physics beyond the standard model in the semi-leptonic decays $\Lambda_b \to \Lambda_c \ell{\bar \nu}_{\ell}$, both with the $\tau$ lepton and with…

高能物理 - 唯象学 · 物理学 2017-03-21 Elvio Di Salvo , Ziad J. Ajaltouni

We introduce a new jet substructure technique called "soft drop declustering", which recursively removes soft wide-angle radiation from a jet. The soft drop algorithm depends on two parameters--a soft threshold $z_\text{cut}$ and an angular…

高能物理 - 唯象学 · 物理学 2014-06-03 Andrew J. Larkoski , Simone Marzani , Gregory Soyez , Jesse Thaler

We present a parameterized model of atmospheric particle showers initiated by cosmic rays. Few physics shower parameters are tuned in a comparison to the Conex generator. Resulting shower properties are studied, with a comment on the cases…

高能天体物理现象 · 物理学 2025-12-22 Jiri Kvita

Taurid meteor shower produces prolonged but usually low activity every October and November. In some years, however, the activity is significantly enhanced. Previous studies based on long-term activity statistics concluded that the…

地球与行星天体物理 · 物理学 2017-09-13 P. Spurný , J. Borovička , H. Mucke , J. Svoreň

This paper presents the development of a new entropy-based feature selection method for identifying and quantifying impacts. Here, impacts are defined as statistically significant differences in spatio-temporal fields when comparing…

应用统计 · 统计学 2024-09-27 Jerry Watkins , Luca Bertagna , Graham Harper , Andrew Steyer , Irina Tezaur , Diana Bull

Topological phases of matter$\unicode{x2013}$comprising both insulators and semimetals$\unicode{x2013}$offer great potential for quantum applications, but identifying new candidates remains challenging due to expensive first-principles…

材料科学 · 物理学 2026-04-08 Xinyu Xu , Arif Ullah , Ming Yang

Metallic bodies that were the cores of differentiated bodies are sources of iron meteorites and are considered to have formed early in the terrestrial planet region before migrating to the main asteroid belt. Surface temperatures and mutual…

地球与行星天体物理 · 物理学 2021-03-31 Ryo Ogawa , Akiko M. Nakamura , Ayako I. Suzuki , Sunao Hasegawa

The possibility of determining cosmological parameters on the basis of a wide set of observational data including the Abell-ACO cluster power spectrum and mass function, peculiar velocities of galaxies, the distribution of Ly-$\alpha$…

天体物理学 · 物理学 2007-05-23 B. Novosyadlyj , R. Durrer , S. Gottloeber , V. N. Lukash , S. Apunevych

We describe here how planetary ephemerides are built in the framework of General Relativity and how they can be used to test alternative theories. We focus on the definition of the reference frame (space and time) in which the planetary…

广义相对论与量子宇宙学 · 物理学 2024-07-25 Agnès Fienga , Olivier Minazzoli

We investigated the reliability and applicability of so-called magnetic force linear response method to calculate spin-spin interaction strengths from first-principles. We examined the dependence on the numerical parameters including the…

强关联电子 · 物理学 2018-03-28 Hongkee Yoon , Taek Jung Kim , Jae-Hoon Sim , Seung Woo Jang , Taisuke Ozaki , Myung Joon Han

Comparing how an asteroid appears in space to its ablation behavior during atmospheric passage and finally to the properties of associated meteorites represents the ultimate probe of small near-Earth objects. We present observations from…

Recently, Shen et al. (2005) studied the contributions of curvature effect of fireballs to the spectral lag and showed that the observed lags could be accounted for by the effect. Here we check their results by performing a more precise…

天体物理学 · 物理学 2009-11-11 R. -J. Lu , Y. -P. Qin , Z. -B. Zhang , T. -F. Yi

Theoretical expressions for ionization cross sections by electron impact based on the binary encounter Bethe (BEB) model, valid from ionization threshold up to relativistic energies, are proposed. The new modified BEB (MBEB) and its…

原子物理 · 物理学 2013-06-13 M. Guerra , F. Parente , P. Indelicato , J. P. Santos

Recently, significant progress has been made in conceptually describing the dynamic aspects of coarse particle entrainment, which has been explored experimentally for open channel flows. The aim of this study is to extend the application of…

大气与海洋物理 · 物理学 2024-09-06 Manousos Valyrakis , Xiao Zhao , Thomas Pähtz , Zhen Li

Micrometeoroids enter Earth's atmosphere at hypervelocity speeds and experience rapid coupling between drag, heating, radiation, melting, ablation, and deceleration. This paper develops a reduced threshold model for the thermal survival…

大气与海洋物理 · 物理学 2026-05-14 Md Shahrier Islam Arham , Prasun Panthi , Min Heo

We use results by Kirilin to show that in general relativity the nonleading terms in the energy-momentum tensor of a particle depends on the parameterization of the gravitational field. While the classical metric that is calculated from…

广义相对论与量子宇宙学 · 物理学 2008-11-26 N. E. J. Bjerrum-Bohr , John F. Donoghue , Barry R. Holstein