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Nuclear capture of antiprotons from atomic states is studied. Partial widths for single nucleon capture events leading to cold residual nuclei are calculated. Recent CERN experiments that compare the neutron and proton captures are…

核理论 · 物理学 2008-11-26 S. Wycech , J. Skalski , R. Smolanczuk , J. Dobaczewski , J. R. Rook

Fermilab operates the world's most intense antiproton source. Newly proposed experiments can use those antiprotons either parasitically during Tevatron Collider running or after the end of the Tevatron Collider program. For example, the…

高能物理 - 实验 · 物理学 2019-08-14 Daniel M. Kaplan

This paper deals with the Physics Institute of via Panisperna in Rome, getting ready for investigation on neutron physics before Fermi's discovery of neutron-induced radioactivity. The importance of nuclear research had been acknowledged in…

物理学史与哲学 · 物理学 2013-01-01 Alberto De Gregorio

In order to study the interactions and structure of various types of matter one typically needs to carry out scattering experiments utilizing many different particles as projectiles. Whereas beams of $e^\pm$, $\mu^\pm$, $\pi^\pm$, $K^\pm$,…

高能物理 - 实验 · 物理学 2021-07-02 Chang-Zheng Yuan , Marek Karliner

The extension of the Periodic System into hitherto unexplored domains - antimatter and hypermatter - is discussed. Starting from an analysis of hyperon and single hypernuclear properties we investigate the structure of multi-hyperon objects…

The activities carried out by Italian physicists in the field of semiconductor physics during the period spanning from 1945 to the foundation of the National Group of Structure of the Matter (GNSM, 1965) are reviewed within their historical…

物理学史与哲学 · 物理学 2008-05-27 Marco Luca Rossi

We review progress in the study of antinuclei, starting from Dirac's equation and the discovery of the positron in cosmic-ray events. The development of proton accelerators led to the discovery of antiprotons, followed by the first…

核实验 · 物理学 2018-11-05 Jinhui Chen , Declan Keane , Yugang Ma , Aihong Tang , Zhangbu Xu

The ALICE experiment at the Large Hadron Collider at CERN is optimized to study the properties of the hot, dense matter created in high energy nuclear collisions in order to improve our understanding of the properties of nuclear matter…

核实验 · 物理学 2019-08-13 Christine Nattrass

The CERN Large Hadron Collider (LHC) started operation a few months ago. The machine will deliver proton-proton and nucleus-nucleus collisions at energies as high as sqrt(s)=14 TeV and luminosities up to L~10^{34} cm^{-2}s^{-1}, never…

高能物理 - 实验 · 物理学 2011-05-03 David d'Enterria

Up to one million antiprotons from a single LEAR spill have been captured in a large Penning trap. Surprisingly, when the antiprotons are cooled to energies significantly below 1 eV, the annihilation rate falls below background. Thus, very…

高能物理 - 实验 · 物理学 2008-11-26 M. H. Holzscheiter , X. Feng , T. Goldman , N. S. P. King , R. A. Lewis , M. M. Nieto , G. A. Smith

The atomic bomb uses fission of heavy elements to produce a large amount of energy. It was designed and deployed during World War II by the United States military. The first test of an atomic bomb occurred in July of 1945 in New Mexico and…

物理学史与哲学 · 物理学 2024-04-01 Elizabeth Mone , Pranay Seshadri

An introductory talk at a Meeting on results and prospects of collaboration of Russian research organizations with European organization for nuclear research (CERN), which took place at the Ministry of science and technical policy of Russia…

高能物理 - 唯象学 · 物理学 2008-02-03 L. B. Okun

Discovery of the J Particle at Brookhaven National Laboratory and the Physics of Electrons and Positrons; The Standard Model Yesterday, Today and Tomorrow; The Rise of Gauge Theories: From Many Models to One Theory; From Charm to CP…

The possibility of creation of cosmologically significant antimatter are analyzed in different scenarios of baryogenesis. It is argued that there may exist plenty of antimatter even in our Galaxy. Possible forms of antimatter objects and…

宇宙学与河外天体物理 · 物理学 2017-08-23 A. D. Dolgov

We demonstrate that the tentative detection of a few antihelium events with the Alpha Magnetic Spectrometer (AMS) on board the International Space Station can, in principle, be ascribed to the annihilation or decay of Galactic dark matter,…

高能天体物理现象 · 物理学 2017-11-13 Adam Coogan , Stefano Profumo

A simple method to explore the interaction of antihyperons in nuclei by exclusive hyperon-antihyperon pair production close to threshold in antiproton nucleus interactions is proposed. Due to energy and momentum conservation event-by-event…

核实验 · 物理学 2008-11-26 Josef Pochodzalla

We propose a low-cost and movable setup to probe minicharged particles (or milli-charged particles) using high-intensity proton fixed-target facilities. This proposal, FerMINI, consists of a milliQan-type detector, requiring…

高能物理 - 唯象学 · 物理学 2019-08-07 Kevin J. Kelly , Yu-Dai Tsai

Based on our recent theoretical findings (Phys. Rev. C 99, 054620 (2019)) it is shown that proton and deuteron capture reactions of extremely low energy may have accountable rate in the case of all elements of the periodic table. Certain…

综合物理 · 物理学 2019-08-16 Péter Kálmán , Tamás Keszthelyi

Precise manipulation of matter at the atomic or molecular level has provided the path for the nanotechnological revolution impacting diverse fields such as biology, medicine, material science, quantum technologies, and electronics. At the…

量子物理 · 物理学 2024-01-10 Georgy Kornakov , Jakub Zieliński

In October 1934 Fermi discovered that neutrons became particularly effective in rendering the elements radioactive after being slowed down by hydrogenous substances. His was described as an absolutely unpredictable scientific discovery. In…

物理学史与哲学 · 物理学 2007-05-23 Alberto De Gregorio