liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Polarization measurements in high-energy deuteron photodisintegration
University of Illinois, Urbana-Champaign, USA.
North Carolina Central University, Durham, USA.
INFN, Sezione Sanitá and Istituto Superiore di Sanitá, Laboratorio di Fisica, Rome, Italy.
California State University, Los Angeles, USA.
Show others and affiliations
2001 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 86, no 14, 2975-2979 p.Article in journal (Refereed) Published
Abstract [en]

We present measurements of the recoil proton polarization for the d(γ⃗,p⃗)n reaction at θc.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 py vanishes above 1 GeV, contrary to meson-baryon model expectations, in which resonances lead to large polarizations. However, the polarization transfer Cx 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.

Place, publisher, year, edition, pages
American Physical Society , 2001. Vol. 86, no 14, 2975-2979 p.
National Category
Accelerator Physics and Instrumentation
URN: urn:nbn:se:liu:diva-94197DOI: 10.1103/PhysRevLett.86.2975OAI: diva2:630188
Available from: 2013-06-18 Created: 2013-06-18 Last updated: 2013-09-12Bibliographically approved

Open Access in DiVA

wijesooriya2001(109 kB)120 downloads
File information
File name FULLTEXT01.pdfFile size 109 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Simon, Daniel
In the same journal
Physical Review Letters
Accelerator Physics and Instrumentation

Search outside of DiVA

GoogleGoogle Scholar
Total: 120 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 104 hits
ReferencesLink to record
Permanent link

Direct link