Results 111 to 120 of about 4,639 (219)

Calculating the size of positronium

Известия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. A fairly common error has been established in the particular case of the problem of two bodies of the same mass performing circular motion around a fixed center of their mass, which consists in the fact that the radius of rotation is found ...
I.P. Popov
doaj   +1 more source

Feasibility Study of the Time Reversal Symmetry Tests in Decay of Metastable Positronium Atoms with the J-PET Detector

Advances in High Energy Physics, 2018
This article reports on the feasibility of testing of the symmetry under reversal in time in a purely leptonic system constituted by positronium atoms using the J-PET detector.
A. Gajos, C. Curceanu, E. Czerwiński, K. Dulski, M. Gorgol, N. Gupta-Sharma, B. C. Hiesmayr, B. Jasińska, K. Kacprzak, Ł. Kapłon, D. Kisielewska, G. Korcyl, P. Kowalski, T. Kozik, W. Krzemień, E. Kubicz, M. Mohammed, Sz. Niedźwiecki, M. Pałka, M. Pawlik-Niedźwiecka, L. Raczyński, J. Raj, Z. Rudy, S. Sharma, Shivani, R. Shopa, M. Silarski, M. Skurzok, W. Wiślicki, B. Zgardzińska, M. Zieliński, P. Moskal   +31 more
doaj   +1 more source

Positronium beam production and scattering cross-sections. [PDF]

, 2005
In this work, the efficiency for the production of a monoenergetic positronium beam via the charge-exchange reaction of a positron beam in a gaseous target has been determined for molecular hydrogen and molecular nitrogen.
Leslie, Dawn Elizabeth, Leslie, D.E.
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Coherent State Description of Astrophysical Gamma-Ray Amplification from a Para-Positronium Condensate

Particles
The para-positronium system S01Ps is described by means of specially constructed coherent states (CSs) in the Klauder–Perelomov sense. It is analyzed from the physical point of view and from the geometry underlying the relevant symmetry group ...
Diego Julio Cirilo-Lombardo
doaj   +1 more source

Positronium and positronium ions [PDF]

Nature, 1981
openaire   +1 more source

Positronium imaging : history, current status, and future perspectives [PDF]

Positronium imaging was recently proposed to image the properties of positronium atoms in the patient’s body. Positronium properties depend on the size of intramolecular voids and oxygen concentration; therefore, they deliver information different from ...
Qi, Jinyi, Huang, Bangyan, Seifert, Robert, Parzych, Szymon, Rominger, Axel, Moskal, Paweł, Sharma, Sushil, Shi, Kuangyu, Steinberger, William M., Walczak, Rafał, Bilewicz, Aleksander, Das, Manish, Khreptak, Aleksander, Stępień, Ewa   +13 more
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Positronium–atom scattering

, 1996
Calculations of total cross sections for Ps(1 s) scattering by atomic hydrogen, helium, and argon are reported for the energy range 0–150 eV. The results for atomic hydrogen have been evaluated exactly within the first Born approximation. For collisions
F. G. R. S. MacDonald, Mary T. McAlinden, H. R. J. Walters   +2 more
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Toward inertial sensing with positronium

TOWARD INERTIAL SENSING WITH POSITRONIUM Toward inertial sensing with positronium / Glöggler, Lisa (Rights reserved) (-
Glöggler, Lisa
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Ansätze zur Trägheitssensorik mit Positronium

The matter-antimatter asymmetry of the universe remains one of the most profound unsolved mysteries in modern physics. This thesis investigates tools and techniques to implement force-sensitive inertial measurements with positronium, a purely leptonic ...
Glöggler, Lisa
core   +1 more source

Positronium scattering by the noble gases

, 2000
The properties of positronium and the outcome of positronium collisions with other atoms and molecules are of interest in many areas of physics. For example, annihilation of orthopositronium has been detected originating from the centre of the Milky Way ...
Blackwood, J.E.
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