| 1. |
- Andersson, B., et al.
(författare)
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The relationship between the meson, baryon, photon and quark fragmentation distributions
- 1977
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Ingår i: Physics Letters B. - : Elsevier BV. - 0370-2693. ; 69:2, s. 221-224
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Tidskriftsartikel (refereegranskat)abstract
- The ideas presented in an earlier note on the relationship between the quark fragmentation distributions as measured in leptoproduction and the one particle distributions in the mesonic fragmentation regions of hadronic interactions are carried further to photoproduction and to the baryon fragmentation distributions. The results are as before interpreted in terms of a simple additive quark model where the main interaction is due to the wee partons whereas almost all the initial momentum is carried by one of the valence quarks or a diquark.
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| 2. |
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| 3. |
- Gustafson, Gösta, et al.
(författare)
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Rescattering effects in the decay of the A1
- 1976
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Ingår i: Nuclear Physics, Section B. - : Elsevier BV. - 0550-3213. ; 116:2, s. 301-316
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Tidskriftsartikel (refereegranskat)abstract
- Rescattering effects in the 3π system in the A1 region are studied with a method, which fulfils unitarity and has the proper analytic structure. Fairly small effects are obtained which confirm the result found in amplitude analyses, neglecting rescattering corrections, that the phases of the JP = 1+ amplitudes vary only very little over the A1 region. Similar results hold for the Q enhancement.
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| 4. |
- Bergström, Lars, et al.
(författare)
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Estimates of recoil nucleon spectra in high-energy hadron-nucleus collisions
- 1977
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Ingår i: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 68:2, s. 177-179
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Tidskriftsartikel (refereegranskat)abstract
- It is shown that recent data on the recoil nucleon spectrum in 10.5 GeV/c pion-neon collisions are in excellent agreement with a parameter free estimate from the so called tube model for high-energy hadron-nucleus collisions. A simple independent collision model is also treated.
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| 5. |
- Bergström, Lars, et al.
(författare)
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Is the recently published counterproof of the tube model credible?
- 1978
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Ingår i: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 78:2-3, s. 337-341
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Tidskriftsartikel (refereegranskat)abstract
- It is shown that recent data from pion and proton collision with emulsion nuclei at 200 GeV/c are in perfect agreement with expectations from the collective tube model. The opposite conclusion in publications by Azimov et al. came about because the authors ignored the important effects of target fragmentation.
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| 6. |
- Fredriksson, Sverker
(författare)
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A phenomenological two-component picture of large transverse momentum production
- 1976
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Ingår i: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 63:3, s. 321-323
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Tidskriftsartikel (refereegranskat)abstract
- It is suggested that large-pT hadrons can be classified into two categories with completely different properties according to whether they contain a leading quark or just sea quarks from the initial projectile-target system. From simple quark counting we get relations between hadron ratios at large pT, which are consistent with data.
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| 7. |
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| 8. |
- Fredriksson, Sverker
(författare)
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Large-pT π0 Production in High-Energy πp Collisions
- 1976
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Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 37:21, s. 1373-1374
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Tidskriftsartikel (refereegranskat)abstract
- It is pointed out that the recently measured difference in pT spectrum between π±p→π0X and pp→π0X, with a large-pT π0, seems to be a consequence only of the smaller number of quarks per projectile in a pion beam.
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| 9. |
- Fredriksson, Sverker
(författare)
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On large transverse momentum production in high-energy proton-nucleus collisions
- 1976
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Ingår i: Nuclear Physics B. - : Elsevier BV. - 0550-3213 .- 1873-1562. ; 111:1, s. 167-177
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Tidskriftsartikel (refereegranskat)abstract
- Experimental data from inclusive production of large pT hadronsin high-energy proton-nucleus collisions are analysed with emphasis on the influence of the size of the target nucleus. It is found that data at pT≤3 GeV/c are consistent with the hypothesis that the incoming proton collides "simultaneously" with all the nucleons in its way, resulting in an effective collision energy larger than the one expected in a single proton-nucleon hit. At pT > 3 GeV/c, data are in conflict with such a simple model, a result we think is a consequence of the dominance of hard parton collisions at very large pT.
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| 10. |
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