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  • Wijesooriya, K (author)

Polarization measurements in high-energy deuteron photodisintegration

  • E-article/E-chapterEnglish2001

Publisher, publication year, extent ...

  • American Physical Society2001

Numbers

  • LIBRIS-ID:22083511
  • http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-94197uri
  • urn:nbn:se:liu:diva-94197urn
  • 10.1103/PhysRevLett.86.2975doi

Supplementary language notes

  • Language:English

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Notes

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  • gratis
  • We present measurements of the recoil proton polarization for the d(γ⃗,p⃗)n reaction at θ c.m.  = 90° for photon energies up to 2.4 GeV. These are the first data in this reaction for polarization transfer with circularly polarized photons. The induced polarization p y  vanishes above 1 GeV, contrary to meson-baryon model expectations, in which resonances lead to large polarizations. However, the polarization transfer C x  does not vanish above 1 GeV, inconsistent with hadron helicity conservation. Thus, we show that the scaling behavior observed in the d(γ,p)ncross sections is not a result of perturbative QCD. These data should provide important tests of new nonperturbative calculations in the intermediate energy regime.

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  • Afanasev, A (author)
  • Amarian, M (author)
  • Aniol, K (author)
  • Becher, S (author)
  • Benslama, K (author)
  • Bimbot, L (author)
  • Bosted, P (author)
  • Brash, E (author)
  • Calarco, J (author)
  • Chai, Z (author)
  • Chang, C C (author)
  • Chang, T (author)
  • Chen, J P (author)
  • Choi, S (author)
  • Chudakov, E (author)
  • Churchwell, S (author)
  • Crovelli, D (author)
  • Dieterich, S (author)
  • Dumalski, S (author)
  • Dutta, D (author)
  • Epstein, M (author)
  • Fissum, K (author)
  • Fox, B (author)
  • Frullani, S (author)
  • Gao, H (author)
  • Gao, J (author)
  • Garibaldi, F (author)
  • Gayou, O (author)
  • Gilman, R (author)
  • Glamazdin, S (author)
  • Glashausser, C (author)
  • Gomez, J (author)
  • Gorbenko, V (author)
  • Hansen, O (author)
  • Holt, R J (author)
  • Hovdebo, J (author)
  • Huber, G M (author)
  • De Jager, C W (author)
  • Jiang, X (author)
  • Jones, C (author)
  • Jones, M K (author)
  • Kelly, J (author)
  • Kinney, E (author)
  • Kooijman, E (author)
  • Kumbartzki, G (author)
  • Kuss, M (author)
  • LeRose, J (author)
  • Liang, M (author)
  • Lindgren, R (author)
  • Liyanage, N (author)
  • Malov, S (author)
  • Margaziotis, D J (author)
  • Markowitz, P (author)
  • McCormick, K (author)
  • Meekins, D (author)
  • Meziani, Z E (author)
  • Michaels, R (author)
  • Mitchell, J (author)
  • Morand, L (author)
  • Perdrisat, C F (author)
  • Pomatsalyuk, R (author)
  • Punjabi, V (author)
  • Ransome, R D (author)
  • Roche, R (author)
  • Rvachev, M (author)
  • Saha, A (author)
  • Sarty, A (author)
  • Schulte, E C (author)
  • Simon, Daniel1978- (author)
  • Strauch, S (author)
  • Suleiman, R (author)
  • Todor, L (author)
  • Ulmer, P E (author)
  • Urciuoli, G M (author)
  • Wojtsekhowski, B (author)
  • Xiong, F (author)
  • Xu, W (author)
  • Department of Physics and Astronomy (contributor)

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  • Part of/supplement to:channel record
  • In:VärdpublikationPhysical Review Letters86:14, 2975-29790031-9007

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