Abstract
The existing data of antinucleon-nucleon and antinucleon-nuclei annihilation cross-sections are confined to energies above about 1MeV. Experimental limitations have prevented till now the lower energies data to be achieved in spite of the interest they represent for theoretical models. One of the unresolved question concerns the antiproton annihilation cross-section measured at LEAR on light nuclei in the MeV region, which show a saturation with the mass number of the target nucleus against any naive expectation. With regard to fundamental cosmology, the knowledge of the annihilation cross-sections at energies below 1MeV can contribute to understand the matter-antimatter asymmetry in the Universe. We present here the experimental demonstration of the feasibility of the measurement of antiproton-nuclei annihilation cross-sections in the 100 keV region.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
R.S. Hayano, CERN-SPSC-2005-002, SPSC-97-19-ADD-2.
A. Bianconi et al., Phys. Lett. B 704, 461 (2011).
M. Agnello et al., Phys. Lett. B 256, 349 (1991).
A. Bertin et al., Phys. Lett. B 369, 77 (1996).
A. Benedettini et al., Nucl. Phys. B 56, 55 (1997).
A. Bertin et al., Phys. Lett. B 414, 220 (1997).
A. Zenoni et al., Phys. Lett. B 461, 413 (1999).
A. Zenoni et al., Phys. Lett. B 461, 405 (1999).
A. Zenoni et al., Nucl. Instrum. Methods B 447, 512 (2000).
A. Bianconi et al., Phys. Lett. B 481, 194 (2000).
A. Bianconi et al., Phys. Lett. B 492, 254 (2000).
L.D. Landau, E.M. Lifshitz, Course of Theoretical Physics - Quantum Mechanics (Non-Relativistic Theory), Vol. 3 (Butterworth-Heinemann, 1981).
A. Bianconi, G. Bonomi, M.P. Bussa, E. Lodi Rizzini, L. Venturelli, Phys. Lett. B 483, 353 (2000).
A. Bianconi, G. Bonomi, E. Lodi Rizzini, L. Venturelli, Phys. Rev. C 62, 014611 (2000).
C.J. Batty, E. Friedman, A. Gal, Nucl. Phys. A 689, 721 (2001).
G. Bendiscioli, D. Kharzeev, Riv. Nuovo Cimento 17, 1 (1994).
F. Iazzi et al., Phys. Lett. B 475, 378 (2000).
M. Augsburger et al., Phys. Lett. B 461, 317 (1999).
S. Wycech et al., Nucl. Phys. A 655, 257c (1999) Harmand, ibidem.
R. Schmidt et al., Phys. Rev. C 60, 0543309 (1999).
S.Wycech, A.M. Green, J.A. Niskanen, Phys. Lett. B 152, 308 (1985).
G.Q. Liu, J.M. Richard, S. Wycech, Phys. Lett. B 260, 15 (1991).
Ye.S. Golubeva, L.A. Kondratyuk, Nucl. Phys. B 56A, 103 (1997).
E. Friedman, A. Gal, Phys. Lett. B 459, 43 (1999).
E. Friedman, A. Gal, Nucl. Phys. A 658, 345 (1999).
K.V. Protasov, G. Bonomi, E. Lodi Rizzini, A. Zenoni, Eur. Phys. J. A 7, 429 (2000).
V.A. Karmanov, K.V. Protasov, A.Yu. Voronin, Eur. Phys. J. A 8, 429 (2000).
W. Brückner et al., Z. Phys. A 339, 379 (1991).
J. Haidembauer, T. Hippchen, K. Holinde, J. Speth, Z. Phys. A 334, 467 (1989).
A.S. Jensen, in Antiproton-nucleon and antiproton-nucleus interactions, edited by F. Bradamante, J.M. Richard, R. Klapish, Ettore Majorana international science series (Plenum Press 1990) p. 205.
A.G. Cohen, A. de Rújula, S.L. Glashow, Astrophys. J. 495, 539 (1998).
A.M. Lombardi, W. Pirkl, Y. Bylinsky, in 2001 Particle Physics Accelerator Conference (Chicago, IL), edited by P. Lucasa, S. Webber (IEEE, Piscataway, 2001) pp. 585--587.
M. Hori, in preparation.
K. Todoroki, M. Hori, JINST 7, C02052 (2012).
M. Corradini, in preparation.
A. Soter, in preparation.
M. Hori et al., Nucl. Instrum. Methods A 496, 102 (2003).
W. Oelert, CERN-SPSC-2009-026, SPSC-P-338.
Author information
Authors and Affiliations
Corresponding author
Additional information
This article is published with open access at Springerlink.com
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
About this article
Cite this article
Aghai-Khozani, H., Barna, D., Corradini, M. et al. First experimental detection of antiproton in-flight annihilation on nuclei at ∼ 130 keV. Eur. Phys. J. Plus 127, 125 (2012). https://doi.org/10.1140/epjp/i2012-12125-8
Received:
Accepted:
Published:
DOI: https://doi.org/10.1140/epjp/i2012-12125-8