NOTE ON LOW-ENERGY PROTON PAIRS IN COLLISION-INDUCED H2 DISSOCIATION

BECKORD K, BECKER J, Werner U, Lutz HO (1994)
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 27(17): L585-L589.

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Abstract
The appearance of low-energy protons is a well known feature in ion-H2 collisions. Recently even the observation of coincident proton pairs with kinetic energies well below the Coulomb energy has been reported in collisions with 15 keV He+. We have studied the dissociation H2 --> H+ + H+ in collisions with 50-350 keV H+ and He+ ions using a time- and position-sensitive multi-particle detector system. This detector allows the coincident measurement of the momenta of both H+ fragments. In this projectile energy range we see no evidence of such low-energy proton pairs. However, we find a strong dissociation channel H2O --> H+ + H+ + O(x) from the residual gas which leads to proton pairs with energies in that range.
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BECKORD K, BECKER J, Werner U, Lutz HO. NOTE ON LOW-ENERGY PROTON PAIRS IN COLLISION-INDUCED H2 DISSOCIATION. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS. 1994;27(17):L585-L589.
BECKORD, K., BECKER, J., Werner, U., & Lutz, H. O. (1994). NOTE ON LOW-ENERGY PROTON PAIRS IN COLLISION-INDUCED H2 DISSOCIATION. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 27(17), L585-L589.
BECKORD, K., BECKER, J., Werner, U., and Lutz, H. O. (1994). NOTE ON LOW-ENERGY PROTON PAIRS IN COLLISION-INDUCED H2 DISSOCIATION. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 27, L585-L589.
BECKORD, K., et al., 1994. NOTE ON LOW-ENERGY PROTON PAIRS IN COLLISION-INDUCED H2 DISSOCIATION. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 27(17), p L585-L589.
K. BECKORD, et al., “NOTE ON LOW-ENERGY PROTON PAIRS IN COLLISION-INDUCED H2 DISSOCIATION”, JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, vol. 27, 1994, pp. L585-L589.
BECKORD, K., BECKER, J., Werner, U., Lutz, H.O.: NOTE ON LOW-ENERGY PROTON PAIRS IN COLLISION-INDUCED H2 DISSOCIATION. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS. 27, L585-L589 (1994).
BECKORD, K, BECKER, J, Werner, Udo, and Lutz, Hans Otto. “NOTE ON LOW-ENERGY PROTON PAIRS IN COLLISION-INDUCED H2 DISSOCIATION”. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 27.17 (1994): L585-L589.
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