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Low energy antiprotons offer excellent opportunities to study properties of fundamental forces and symmetries in nature. Experiments with them can contribute substantially to deepen our fundamental knowledge in atomic, nuclear and particle…

高能物理 - 实验 · 物理学 2009-11-11 Klaus P. Jungmann

The whole set of astrophysical data indicates that our Universe is globally baryon asymmetrical. Nevertheless a possibility of existence of relatively small amount of sufficiently large antimatter regions is not excluded. Such regions can…

天体物理学 · 物理学 2007-05-23 Alexander Sakharov , Maxim Khlopov , Sergei Rubin

Back in the mid eighties, a new branch of investigation which was related to the interaction of eta mesons with nuclei came into existence. It started with the theoretical prediction of possible exotic states of eta mesons and nuclei bound…

核理论 · 物理学 2013-08-19 N. G. Kelkar , K. P. Khemchandani , N. J. Upadhyay , B. K. Jain

The feasibility of a European next-generation very massive neutrino observatory in seven potential candidate sites located at distances from CERN ranging from 130 km to 2300 km, is being considered within the LAGUNA design study. The study…

高能物理 - 唯象学 · 物理学 2010-03-10 A. Rubbia

For the first time the antineutrino spectrum formed as a result of neutron and tritium decays during the epoch of primordial nucleosynthesis is calculated. This spectrum is a non-thermal increase in addition to the standard cosmic neutrino…

宇宙学与河外天体物理 · 物理学 2018-10-05 Alexandre V. Ivanchik , Vlad Yu. Yurchenko

The past fifty years have seen the emergence of a new field of research in physics, the study of matter at extreme temperatures and densities. The theory of strong interactions, quantum chromodynamics (QCD), predicts that in this limit,…

高能物理 - 唯象学 · 物理学 2015-06-05 Helmut Satz

For the production of a polarized antiproton beam various methods have been suggested including the possibility that antiprotons may be produced polarized which will be checked experimentally. The polarization of antiprotons produced under…

The idea that the universe is filled with the thermal radiation now termed the Cosmic Microwave Background was first discussed in eleven publications in the year 1948. These papers offer a detailed example of the process of development of a…

物理学史与哲学 · 物理学 2015-06-17 P. J. E. Peebles

Mechanisms for the generation of the matter-antimatter asymmetry and dark matter strongly depend on the reheating temperature T_R, the maximal temperature reached in the early universe. Forthcoming results from the LHC, low energy…

高能物理 - 唯象学 · 物理学 2012-12-17 Wilfried Buchmuller

Stored antiprotons beams in the GeV range represent a unparalleled factory for hyperon-antihyperon pairs. Their outstanding large production probability in antiproton collisions will open the floodgates for a series of new studies of…

Polarization of photons emitted in weak decays occuring at distant star allows to determine whether this star is made from antimatter. Even more promissing is the observation of neutrinos (antineutrinos) produced at neutronization…

高能物理 - 唯象学 · 物理学 2015-06-17 A. D. Dolgov , V. A. Novikov , M. I. Vysotsky

I shall sketch the history of reactor neutrino physics over five decades since the Reines-Cowan proof of neutrino existence in the late 50s, till the advent of the present era of precision reactor neutrino oscillation experiments. There are…

高能物理 - 唯象学 · 物理学 2019-02-13 Petr Vogel

Antiprotons and antideuterons are considered as probes to look for primordial black holes in our Galaxy. I give a brief overview of the latest developments on the subject.

天体物理学 · 物理学 2007-05-23 Aurelien Barrau

Whereas repulsive gravity was considered as a fringe concept until the mid-1990's, the growingexperimental evidence since this epoch for repulsive gravity, in what is now called Dark Energy,for lack of a better understanding of its nature,…

宇宙学与河外天体物理 · 物理学 2022-10-10 Gabriel Chardin

Thirteen targets with mass numbers from 58 to 238 were irradiated with the antiproton beam from the Low Energy Antiproton Ring facility at CERN leading to the formation of antiprotonic atoms of these heavy elements. The antiproton capture…

The conceptual bases of Fermi's $\beta$-ray theory (at its 90th anniversary) are examined, highlighting the innovative drive and inspirational role for the progress that followed just afterwards. Moreover, the three different ideas of the…

物理学史与哲学 · 物理学 2024-11-20 Francesco Vissani

Experiment 864 at the BNL-AGS was designed to search for exotic states of strange quark matter and other rare composite particles. The experiment was commissioned in 1994 and completed its final run in 1998. Here, we present an overview of…

核实验 · 物理学 2015-06-26 J. L. Nagle , E864 Collaboration

An overview of new experimental results on high-\pT{} particle production and jets in heavy ion collisions from the Quark Matter 2006 conference is presented.

核实验 · 物理学 2008-11-26 M. van Leeuwen

Potential applications of neutrino detection to nuclear security have been discussed since the 1970s. Recent years have seen great progress in detector technologies based on inverse beta decay, with the demonstration of ton-scale…

仪器与探测器 · 物理学 2020-09-30 Maitland Bowen , Patrick Huber

We have studied big bang nucleosynthesis in the presence of regions of antimatter. Depending on the distance scale of the antimatter region, and thus the epoch of their annihilation, the amount of antimatter in the early universe is…

天体物理学 · 物理学 2009-10-31 Hannu Kurki-Suonio , Elina Sihvola