Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 64, Issue 2, Pages 171-179Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-009-1143-7
Keywords
-
Categories
Funding
- Portuguese FCT-Fundacao para a Ciencia e Tecnologia [POCTI/FNU/49501/2002, POCTI/FNU/50192/2003]
- MEXT
- JSPS [18002006, 20540299, 18540281]
- Daiko Foundation
- Yamada Foundation
- DFG cluster of excellence 'Origin and Structre of the Universe'
- Israel Science Foundation
- Israel Academy of Sciences and Humanities
- Ministry of Science and Higher Education [41/N-CERN/2007/0]
- KBN [134/E-365/SPUB-M/CERN/P-03/DZ299/2000]
- Grants-in-Aid for Scientific Research [18540281, 18002006, 20540299] Funding Source: KAKEN
- Fundação para a Ciência e a Tecnologia [POCTI/FNU/49501/2002] Funding Source: FCT
Ask authors/readers for more resources
The longitudinal polarisation transfer from muons to Lambda and (Lambda) over bar hyperons, D-LL(Lambda(Lambda) over bar), has been studied in deep-inelastic scattering off an unpolarised isoscalar target at the COMPASS experiment at CERN. The spin transfers to Lambda and (Lambda) over bar produced in the current fragmentation region exhibit different behaviours as a function of x and x(F). The measured x and xF dependences of D-LL(Lambda) are compatible with zero, while D-LL((Lambda) over bar) tends to increase with x(F), reaching values of 0.4-0.5. The resulting average values are D-LL(Lambda) = -0.012 +/- 0.047 +/- 0.024 and D-LL((Lambda) over bar) = 0.249 +/- 0.056 +/- 0.049. These results are discussed in the frame of recent model calculations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available