R
R. Armenteros
Researcher at CERN
Publications - 50
Citations - 863
R. Armenteros is an academic researcher from CERN. The author has contributed to research in topics: Partial wave analysis & Meson. The author has an hindex of 17, co-authored 50 publications receiving 855 citations.
Papers
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Journal ArticleDOI
K−p cross sections from440 to 800 MeV/c
R. Armenteros,Paul Baillon,C. Bricman,M. Ferro-Luzzi,E. Pagiola,J. Petersen,D. E. Plane,N. Schmitz,E. Burkhardt,H. Filthuth,E. E. Kluge,H. Oberlack,R.R. Ross,R. Barloutaud,P. Granet,J-P. Meyer,J.P. Porte,J. Prevost +17 more
TL;DR: In this paper, a total of about 100,000 events were analysed, from which partial and differential cross sections were determined for two-body reactions where the decay of the Λ or Σ hyperon allowed their measurement.
Journal ArticleDOI
pp annihilation into π+π− and K+K− from atomic p states
M. Doser,M. Botlo,Shafqat Ahmad,Claude Amsler,R. Armenteros,E.G. Auld,D. Axen,D. Bailey,S. Barlag,G. A. Beer,J.C. Bizot,J. N. Butler,M. Comyn,W. Dahme,B. Delcourt,K. D. Duch,K. L. Erdman,F. Feld-Dahme,U. Gastaldi,M. Heel,B. Howard,R. Howard,J. Jeanjean,H. Kalinowsky,F. Kaysher,Eberhard Klempt,C. Laa,R. Landua,Glenn M. Marshall,B. May,H. Nguyen,N. Prevot,J. Riedlberger,L. P. Robertson,C. Sabev,U. Schaefer,O. Schreiber,U. Straumann,P. Truöl,H. Vonach,B. L. White,R. W. Wodrich,M. Ziegler +42 more
TL;DR: In this article, the branching ratios for p p annihilation at rest into π+π− and K+K− in a pure p p initial angular momentum state L = 1 were obtained by detecting the Balmer X-ray series.
Journal ArticleDOI
Observation and quantum numbers determination of the E(1420) meson in π−p interactions at 3.95 GeV/c
C. Dionisi,Ph. Gavillet,R. Armenteros,M.J. Losty,P. F. Loverre,M. Mazzucato,L. Montanet,M. Aguilar Benitez,C. Fernandez,A. Ferrando,J. A. Rubio,J. Salicio,L. Dobrzynski,D. Pennino,S. Rodebäck,I. Sjögren,S. O. Holmgren +16 more
TL;DR: In this article, the E(1420) meson was investigated in a high statistics (90 events/μb) bubble chamber experiment and the results showed that the meson achieved a branching ratio of 0.95 GeV/c.
Journal ArticleDOI
Measurement of the strong-interaction shift and broadening of the ground state of the pp̄ atom☆☆☆
M. Ziegler,Shama Ahmad,Claude Amsler,R. Armenteros,E.G. Auld,D. Axen,D. Bailey,S. Barlag,G. A. Beer,J.C. Bizot,M. Botlo,M. Comyn,W. Dahme,B. Delcourt,M. Doser,K. D. Duch,K. L. Erdman,F. Feld-Dahme,U. Gastaldi,M. Heel,B. Howard,R. Howard,J. Jeanjean,H. Kalinowsky,F. Kayser,Eberhard Klempt,C. Laa,R. Landua,Glenn M. Marshall,H. Nguyen,N. Prevot,J. Riedlberger,R. Rieger,L. P. Robertson,C. Sabev,U. Schaefer,O. Schreiber,U. Straumann,P. Truoel,H. Vonach,P. Weidenauer,B. L. White,W. R. Wodrich +42 more
TL;DR: In this article, the Kα line is observed with a significance of more than 25 standard deviations at an energy of 8.67 (15) keV, and the strong interaction shift and width of the 1S level, averaged over the unresolved spin singlet and triplet contributions, of ΔE + iΓ/2 = [−0.70(15) + i0.80(20)] keV.
Journal ArticleDOI
The KN interaction from 800 to 1200 MeV/c (I). K−p cross sections
R. Armenteros,M. Ferro-Luzzi,D.W.G. Leith,R. Levi-Setti,A. Minten,R.D. Tripp,H. Filthuth,V. Hepp,E. E. Kluge,H. Schneider,R. Barloutaud,P. Granet,J-P. Meyer,J.P. Porte +13 more
TL;DR: In this article, a total of about 100 000 events were analysed and partial and differential cross sections were determined; polarisations were also obtained for those reactions where the decay of the Λ or Σ+ hyperon allowed their measurement.