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At the Quark Matter conference today and at the recent Rencontres de Moriond conference, the LHCb collaboration presented an analysis of particle collisions at the Large Hadron Collider (LHC) that may...
IMAGE RELEASE:Shocking Results of Galaxy-Cluster Collisions（图）
Shocking Results Galaxy-Cluster Collisions
2017/11/23
A giant collision of several galaxy clusters, each containing hundreds of galaxies, has produced this spectacular panorama of shocks and energy. The collisions generated shock waves that set off a cel...
2017年第26届国际超临界重离子碰撞会议（XXVI international conference on ultrarelativistic heavy-ion collisions）
2017年 第26届 国际超临界重离子碰撞 会议
2017/1/12
Quark Matter 2017 is the XXVI international conference on ultrarelativistic heavy-ion collisions. The aim of this conference is to bring together theoretical and experimental physicists from around th...
UW Study:Ancient Rocks of Tetons Formed by Continental Collisions
UW Study Ancient Rocks Tetons Formed Continental Collisions
2016/2/22
University of Wyoming scientists have found evidence of continental collisions in Wyoming’s Teton Range, similar to those in the Himalayas, dating to as early as 2.68 billion years ago.
Some sufficient conditions for infinite collisions of simple random walks on a wedge comb
wedge comb simple random walk infinite collision property local time
2016/1/19
In this paper, we give some sufficient conditions for the infinite collisions of independent simple random walks on a wedge comb with profile {f(n),n ∈ Z}.One interesting result is that two independen...
Collisions and Gravitational Reaccumulation:Forming Asteroid Families and Satellites
Collisions and Gravitational Asteroid Families Satellites
2015/12/25
Numerical simulations of the collisional disruption of large asteroids show that although the parent body is totally shattered, subsequent gravitational reaccumulation leads to the formation of an ent...
Direct N-body Simulations of Rubble Pile Collisions
asteroids collisional physics impact processes planetary formation planetesimals
2015/12/25
There is increasing evidence that many kilometer-sized bodies in the Solar System are piles of rubble bound together by gravity. We present results from a project to map the parameter space of collisi...
Escape, collisions and regularization in the variational approach to the N-body problem
Escape collisions regularization variational approach N-body problem
2015/3/18
Escape, collisions and regularization in the variational approach to the N-body problem.
Testing cosmic censorship with black hole collisions
Quality of the hole the cosmological constant total quality extreme limit
2014/12/23
There exists an upper limit on the mass of black holes when the cosmological constant Λ is positive. We study the collision of two black holes whose total mass exceeds this limit. Our investigation is...
On Collisions in Nonholonomic systems
Nonholonomic mechanics rigid bodies collisions Lagrange-d’Alembert equation
2012/6/27
We consider nonholonomic systems with collisions and propose a concept of weak solutions to Lagrange-d'Alembert equations. In the light of this concept we describe dynamics of the collisions. Several ...
Photoisomerisation of trans-stilbene in solution may be directly assisted by solvent collisions
Photoisomerisation of trans-stilbene solution assisted solvent collisions Chemical Physics
2012/4/20
Gas phase thermal isomerization rates of trans-stilbene obey the Arrhenius law at T~300 K, indicating that intramolecular vibrational redistribution (IVR) is complete or not restrictive for the reacti...
Controlled absorption and all-optical diode action due to collisions of self-induced transparency solitons
Controlled absorption all-optical diode action collisions of self-induced transparency solitons Optics
2012/4/20
We study inelastic collisions of counter-propagating self-induced transparency solitons in a homogeneously broadened two-level medium. The energy of the pulse can be almost totally absorbed in the med...
Normal Collisions of Spheres: A Literature Survey on Available Experiments
Normal Collisions of Spheres Literature Survey Available Experiments
2012/4/19
The central collision between two solid spheres or the normal collision between a sphere and a plate are important to understand in detail before studying more complex particle interactions. Models ex...
Total angular momentum representation for atom-molecule collisions in electric fields
Total angular momentum representation atom-molecule collisions electric fields
2012/2/28
It is shown that the atom-molecule collision problem in the presence of an external electric field can be solved using the total angular momentum representation in the body-fixed coordinated frame, le...
Pair Production from Asymmetric Head-on Laser Collisions
Pair Production Asymmetric Head-on Laser Collisions High Energy Physics Phenomenology
2011/8/19
Abstract: We evaluate particle production in highly asymmetric head-on collisions of lasers pulses due to non-perturbative coherent action of many photons. We obtain the yield of electron-positron pai...