This title appears in the Scientific Report :
2006
Please use the identifier:
http://dx.doi.org/10.1140/epja/i2006-10025-9 in citations.
Upper limits on resonance contributions to proton-proton elastic scattering in the c.m. mass range 2.05-2.85 geV/c2
Upper limits on resonance contributions to proton-proton elastic scattering in the c.m. mass range 2.05-2.85 geV/c2
Recently published excitation functions in proton-proton (pp) elastic scattering observables in the laboratory energy range 0.5-2.5 GeV provide an excellent data base to establish firm upper limits on the elasticities eta(el) = Gamma(el)/Gamma(tot) of possible isovector resonant contributions to the...
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Personal Name(s): | Rohdjeß, H. |
---|---|
Altmeier, M. / Bauer, F. / Bisplinghoff, J. / Bollmann, R. / Büßer, K. / Busch, M. / Diehl, O. / Engelhardt, H. P. / Ernst, J. / Eversheim, P. D. / Eyser, K. O. / Felden, J. M. / Gebel, R. / Groß, A. / Groß-Hardt, R. / Hinterberger, F. / Langkau, R. / Lindlein, J. / Maier, R. / Mosel, F. / Prasuhn, D. / von Rossen, P. / Scheid, N. / Schulz-Rojahn, M. / Schwandt, F. / Schwarz, V. / Scobel, W. / Trelle, H.-J. / Ulbrich, K. / Weise, E. / Wellinghausen, A. / Woller, K. / Ziegler, R. | |
Contributing Institute: |
Kernphysikalische Großgeräte; IKP-GG |
Published in: | The @European physical journal / A, 28 (2006) S. 115 - 124 |
Imprint: |
Berlin
Springer
2006
|
Physical Description: |
115 - 124 |
DOI: |
10.1140/epja/i2006-10025-9 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
European Physical Journal A
28 |
Subject (ZB): | |
Publikationsportal JuSER |
Recently published excitation functions in proton-proton (pp) elastic scattering observables in the laboratory energy range 0.5-2.5 GeV provide an excellent data base to establish firm upper limits on the elasticities eta(el) = Gamma(el)/Gamma(tot) of possible isovector resonant contributions to the nucleon-nucleon (NN) system. Such contributions have been predicted to arise from dibaryonic states, with c.m. masses between 2.1-2.9 GeV/c(2), but have not been confirmed experimentally. A method to determine quantitatively the maximum value of reel compatible with experimental data is presented. We use energy-dependent phase shift fits to the pp data base to model the non-resonant interaction. Based upon the differential cross-section data measured by the EDDA Collaboration an unbiased statistical test is constructed to obtain upper limits on eta(el), that exclude larger values with a 99% confidence level. Results in the c.m. mass range 2.05-2.85 GeV/c(2) and total widths of 10-100 MeV/c(2) in the partial waves S-1(0), D-1(2), P-3(0), P-3(1), and F-3(3) are presented and discussed. |