Search for p-nucleus states using the (p, p) knock-out reaction at 600 MeV/c

E. Aslanides; D. M. Drake; J. C. Peng; D. Garreta; P. Birien; G. Bruge; H. Catz; A. Chaumeaux; S. Janouin; D. Legrand; M. C. Lemaire; B. Mayer; J. Pain; F. Perrot; M. Berrada; J. P. Bocquet; E. Monnand; J. Mougey; P. Perrin; O. Bing; J. Lichtenstadt; A. I. Yavin

doi:10.1016/0375-9474(87)90580-X

Search for p-nucleus states using the (p, p) knock-out reaction at 600 MeV/c

E. Aslanides
, D. M. Drake
, J. C. Peng
, D. Garreta
, P. Birien
, G. Bruge
, H. Catz
, A. Chaumeaux
, S. Janouin
, D. Legrand
, M. C. Lemaire
, B. Mayer
, J. Pain
, F. Perrot
, M. Berrada
, J. P. Bocquet
, E. Monnand
, J. Mougey
, P. Perrin
, O. Bing

J. Lichtenstadt, A. I. Yavin

Research output: Contribution to journal › Article › peer-review

Abstract

The knock-out reaction A(p, p)X has been used to search for narrow p-nucleus states. The experiment was performed using the 600 MeV/c antiproton beam at LEAR and the high-resolution and large-acceptance magnetic spectrometer SPES II. The A-dependence of the annihilation-induced proton spectra has been studied on ²H, ⁶Li, ¹²C, ⁶³Cu, ²⁰⁸Pb and ²⁰⁹Bi. The quasi-free elastic pp scattering observed in the lighter targets, and the comparison with the free pp scattering, also observed in this experiment, determine an effective proton number N_eff for 1s- and 1p-shell protons. No evidence for narrow bound or resonant p-nucleus states could be found. Upper limits for their production are one order of magnitude lower than certain theoretical predictions, but consistent with the properties of the p-nucleus interaction, as established from recent elastic and inelastic scattering as well as from studies of antiprotonic atoms.

Original language	English (US)
Pages (from-to)	445-460
Number of pages	16
Journal	Nuclear Physics, Section A
Volume	470
Issue number	3-4
DOIs	https://doi.org/10.1016/0375-9474(87)90580-X
State	Published - Aug 31 1987
Externally published	Yes

Keywords

Nuclear reactions

ASJC Scopus subject areas

Nuclear and High Energy Physics

Online availability

10.1016/0375-9474(87)90580-X

Library availability

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Aslanides, E., Drake, D. M., Peng, J. C., Garreta, D., Birien, P., Bruge, G., Catz, H., Chaumeaux, A., Janouin, S., Legrand, D., Lemaire, M. C., Mayer, B., Pain, J., Perrot, F., Berrada, M., Bocquet, J. P., Monnand, E., Mougey, J., Perrin, P., ... Yavin, A. I. (1987). Search for p-nucleus states using the (p, p) knock-out reaction at 600 MeV/c. Nuclear Physics, Section A, 470(3-4), 445-460. https://doi.org/10.1016/0375-9474(87)90580-X

Aslanides, E, Drake, DM, Peng, JC, Garreta, D, Birien, P, Bruge, G, Catz, H, Chaumeaux, A, Janouin, S, Legrand, D, Lemaire, MC, Mayer, B, Pain, J, Perrot, F, Berrada, M, Bocquet, JP, Monnand, E, Mougey, J, Perrin, P, Bing, O, Lichtenstadt, J & Yavin, AI 1987, 'Search for p-nucleus states using the (p, p) knock-out reaction at 600 MeV/c', Nuclear Physics, Section A, vol. 470, no. 3-4, pp. 445-460. https://doi.org/10.1016/0375-9474(87)90580-X

@article{a5ec5296f02447059a2d5377e4cdf33e,

title = "Search for p-nucleus states using the (p, p) knock-out reaction at 600 MeV/c",

abstract = "The knock-out reaction A(p, p)X has been used to search for narrow p-nucleus states. The experiment was performed using the 600 MeV/c antiproton beam at LEAR and the high-resolution and large-acceptance magnetic spectrometer SPES II. The A-dependence of the annihilation-induced proton spectra has been studied on 2H, 6Li, 12C, 63Cu, 208Pb and 209Bi. The quasi-free elastic pp scattering observed in the lighter targets, and the comparison with the free pp scattering, also observed in this experiment, determine an effective proton number Neff for 1s- and 1p-shell protons. No evidence for narrow bound or resonant p-nucleus states could be found. Upper limits for their production are one order of magnitude lower than certain theoretical predictions, but consistent with the properties of the p-nucleus interaction, as established from recent elastic and inelastic scattering as well as from studies of antiprotonic atoms.",

keywords = "Nuclear reactions",

author = "E. Aslanides and Drake, \{D. M.\} and Peng, \{J. C.\} and D. Garreta and P. Birien and G. Bruge and H. Catz and A. Chaumeaux and S. Janouin and D. Legrand and Lemaire, \{M. C.\} and B. Mayer and J. Pain and F. Perrot and M. Berrada and Bocquet, \{J. P.\} and E. Monnand and J. Mougey and P. Perrin and O. Bing and J. Lichtenstadt and Yavin, \{A. I.\}",

note = "The search for p-nuclear states formed by an antiproton and a nucleus, which are different from the well-known antiprotonic atom states bound by the Coulomb interaction, was made possible at the CERN low-energy antiproton ring (LEAR) with the availability of intense, pure, high-resolution antiproton beams. The favourable conditions for such states to exist are that the l\textasciitilde{}-nucleus interaction, described * Supported in part by the Fund for Basic Research of the Israel Academy of Sciences.",

year = "1987",

month = aug,

day = "31",

doi = "10.1016/0375-9474(87)90580-X",

language = "English (US)",

volume = "470",

pages = "445--460",

journal = "Nuclear Physics, Section A",

issn = "0375-9474",

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TY - JOUR

T1 - Search for p-nucleus states using the (p, p) knock-out reaction at 600 MeV/c

AU - Aslanides, E.

AU - Drake, D. M.

AU - Peng, J. C.

AU - Garreta, D.

AU - Birien, P.

AU - Bruge, G.

AU - Catz, H.

AU - Chaumeaux, A.

AU - Janouin, S.

AU - Legrand, D.

AU - Lemaire, M. C.

AU - Mayer, B.

AU - Pain, J.

AU - Perrot, F.

AU - Berrada, M.

AU - Bocquet, J. P.

AU - Monnand, E.

AU - Mougey, J.

AU - Perrin, P.

AU - Bing, O.

AU - Lichtenstadt, J.

AU - Yavin, A. I.

N1 - The search for p-nuclear states formed by an antiproton and a nucleus, which are different from the well-known antiprotonic atom states bound by the Coulomb interaction, was made possible at the CERN low-energy antiproton ring (LEAR) with the availability of intense, pure, high-resolution antiproton beams. The favourable conditions for such states to exist are that the l~-nucleus interaction, described * Supported in part by the Fund for Basic Research of the Israel Academy of Sciences.

PY - 1987/8/31

Y1 - 1987/8/31

N2 - The knock-out reaction A(p, p)X has been used to search for narrow p-nucleus states. The experiment was performed using the 600 MeV/c antiproton beam at LEAR and the high-resolution and large-acceptance magnetic spectrometer SPES II. The A-dependence of the annihilation-induced proton spectra has been studied on 2H, 6Li, 12C, 63Cu, 208Pb and 209Bi. The quasi-free elastic pp scattering observed in the lighter targets, and the comparison with the free pp scattering, also observed in this experiment, determine an effective proton number Neff for 1s- and 1p-shell protons. No evidence for narrow bound or resonant p-nucleus states could be found. Upper limits for their production are one order of magnitude lower than certain theoretical predictions, but consistent with the properties of the p-nucleus interaction, as established from recent elastic and inelastic scattering as well as from studies of antiprotonic atoms.

AB - The knock-out reaction A(p, p)X has been used to search for narrow p-nucleus states. The experiment was performed using the 600 MeV/c antiproton beam at LEAR and the high-resolution and large-acceptance magnetic spectrometer SPES II. The A-dependence of the annihilation-induced proton spectra has been studied on 2H, 6Li, 12C, 63Cu, 208Pb and 209Bi. The quasi-free elastic pp scattering observed in the lighter targets, and the comparison with the free pp scattering, also observed in this experiment, determine an effective proton number Neff for 1s- and 1p-shell protons. No evidence for narrow bound or resonant p-nucleus states could be found. Upper limits for their production are one order of magnitude lower than certain theoretical predictions, but consistent with the properties of the p-nucleus interaction, as established from recent elastic and inelastic scattering as well as from studies of antiprotonic atoms.

KW - Nuclear reactions

UR - https://www.scopus.com/pages/publications/0010046760

UR - https://www.scopus.com/pages/publications/0010046760#tab=citedBy

U2 - 10.1016/0375-9474(87)90580-X

DO - 10.1016/0375-9474(87)90580-X

M3 - Article

AN - SCOPUS:0010046760

SN - 0375-9474

VL - 470

SP - 445

EP - 460

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 3-4

ER -

Search for p-nucleus states using the (p, p) knock-out reaction at 600 MeV/c

Abstract

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