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Your search keyword '"L., Venturelli"' showing total 4 results
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4 results on '"L., Venturelli"'

1. Two-photon laser spectroscopy of antiprotonic helium and the antiproton-electron mass ratio

Author

B. Juhász, S. Friedreich, Nicola Zurlo, L. Venturelli, Dezso Horvath, Andreas Dax, Eberhard Widmann, T. Pask, D. Barna, Anna Sótér, Masaki Hori, and Ryugo S. Hayano

Subjects
Nuclear physics, Physics, Proton, Antiproton, Electron rest mass, Physics::Atomic Physics, Electron, Mass ratio, Atomic physics, Nuclear Experiment, Spectroscopy, Antiprotonic helium, Atomic mass
Abstract

We report our latest results from our two-photon spectroscopy of antiprotonic helium (a bound state of a helium nucleus, an electron and an antiproton). By measuring three transition frequencies with a precision of 2.3−5×10−9 and comparing these to 3-body QED calculations, we derived the antiproton-electron mass ratio 1,836.1526736(23),which agrees with the proton-electron mass ratio (known to a three-times better precision) within the errors. Since the (anti)proton's atomic mass is known to a better precision than that of the electron, assuming mp = mp this result can be used to determine the electron's atomic mass as me=0.0005485799091(7) u.

Published
2013

2. Towards the production of anti-hydrogen beams

Author

K. S. Tanaka, A. Mohri, Yugo Nagata, Yasuyuki Matsuda, Y. Enomoto, Yasuyuki Nagashima, Naofumi Kuroda, Yoshio Kanai, Hiroyuki A. Torii, B. Juhász, Yasunori Yamazaki, Nicola Zurlo, K. Fujii, M. Leali, M. Otsuka, Valerio Mascagna, D. J. Murtagh, Koji Michishio, H. Imao, S. Van Gorp, M. Corradini, Stefan Ulmer, E. Lodi-Rizzini, Hiroyuki Higaki, C. Kim, and L. Venturelli

Subjects
Condensed Matter::Quantum Gases, Physics, anti-hydrogen beam, non-neutral plasma, Field (physics), Hydrogen, hyperfine structure, chemistry.chemical_element, anti-hydrogen, Magnetic field, Physics and Astronomy (all), chemistry, Antiproton, Antimatter, Physics::Atomic Physics, Atomic physics, Antihydrogen, Hyperfine structure, Beam (structure)
Abstract

Recently, the production of low energy anti-hydrogen atoms in the cusp trap with the use of 150eV antiproton beams from the MUSASHI trap was reported. The purpose of producing low energy anti-hydrogen atoms in a cusped magnetic field is to extract a polarized anti-hydrogen beam to a field free region, so that the hyperfine structure of anti-hydrogen atoms can be measured.

Published
2013

3. Antiproton-nucleus annihilation at very low energies down to capture

Author

E. Lodi Rizzini, M. Leali, Antonio Bianconi, M. Corradini, L. Venturelli, and Nicola Zurlo

Subjects
Nuclear reaction, Physics, Antiparticle, Particle physics, Large Hadron Collider, Annihilation, Physics::Instrumentation and Detectors, Baryon, Nuclear physics, Antiproton, Antimatter, Physics::Accelerator Physics, High Energy Physics::Experiment, Physics::Atomic Physics, Nuclear Experiment, Nucleon
Abstract

Results and opportunities at the low energies antiproton facilities at CERN (AD) are presented.

Published
2005

4. Hypernuclear studies at DAΦNE

Author

Felice Iazzi, V. Filippini, A. Sharma, E. M. Fiore, Aldo Zenoni, V. Paticchio, A. Filippi, A. Pantaleo, Alessandro Feliciello, E. Rossetto, A. Rotondi, Bruno Minetti, Paolo Montagna, N. Grion, S. Sarwar, F. L. Fabbri, C. Cattaneo, A. Olin, P. Camerini, C. Guaraldo, E. Lodi Rizzini, G. R. Smith, M. Corradini, Stefano Bianco, L. Venturelli, L. Busso, L. Fiore, D. Calvo, S. Costa, S. Marcello, N. Colonna, V. Lucherini, S. Yen, Elena Botta, A. Lanaro, M. Bertani, Tullio Bressani, D. R. Gill, Michelangelo Agnello, G. D'Erasmo, Antonietta Donzella, Paola Salvini, Paola Gianotti, and Rinaldo Rui

Subjects
Physics, Nuclear reaction, Nuclear physics, Baryon, Hypernuclei, Hadron, Hyperon, Elementary particle, Fermion, Spectroscopy, Lambda baryon, Hypernuclei, DAPHNE, DAPHNE
Published
1995

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