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Observation of events with an energetic forward neutron in deep inelastic scattering at HERA
... The process of leading neutron production has been studied at several experiments in photon-hadron [5]- [11] and hadron-hadron [12]- [18] colliders. ...
In the light of the latest data by LHCf collaboration of the LHC on leading neutrons spectra it is possible to obtain total pion-proton cross-sections in the TeV energy region. In this work the exact extraction procedure is shown. Final numbers for the pion-proton cross-section are collected at several different values of the colliding energy and compared with some popular theoretical predictions. Errors of results are estimated.
... It is claimed, for example, that the strong nuclear force does not arise through Yukawa's mechanism of pion exchange supplemented by ρ and ω exchange (Ishi et al. 2007). The successful prediction of the mass of the pion by Yukawa, and also the subsequent discoveries of the ρ and ω particles, appear to arise as fortuitous accidents according to the colour theory, as do several other successful calculations involving these particles at low energies (Machleidt 1989;Vanderhaeghen & Walcher 2011), at medium energies (Yock & Gordan 1967;Yock 1968) and at high energies (Boros & Zuo-tang 1995;Derrick et al. 1996;Thomas & Boros 1999;D'Alesio et al. 2000;Lu et al. 2000). The nature of these apparent accidents requires further understanding. ...
It is conventionally thought that New Zealand's distance from the large, northern hemisphere centres of learning, and our relatively small population and wealth, are detrimental to the contribution we can make to the advancement of scientific knowledge. Here the reverse point of view is argued.
- S Bhadra
- M L Cardy
- C.-P Fagerstroem
- W R Frisken
- K M Furntani
- M Khakzad
- W N Murray
- W B Schmidke References
- Zeus Collab
- M Derrick
S. Bhadra, M.L. Cardy, C.-P. Fagerstroem, W.R. Frisken, K.M. Furntani, M. Khakzad,
W.N. Murray, W.B. Schmidke
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