J
J. Repond
Researcher at University of Basel
Publications - 16
Citations - 186
J. Repond is an academic researcher from University of Basel. The author has contributed to research in topics: Annihilation & Detector. The author has an hindex of 8, co-authored 16 publications receiving 183 citations.
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Journal ArticleDOI
Proton-antiproton annihilations at rest into π0ω, π0η, π0γ, π0π0, and π0η′
G. Backenstoss,M. Hasinoff,P. Pavlopoulos,J. Repond,L. Tauscher,D. Tröster,P. Blüm,R. Guigas,H. Koch,M. Meyer,H. Poth,U. Raich,B. Richter,L. Adiels,I. Bergström,Kjell Fransson,Andras Kerek,M. Suffert,Konstantin Zioutas +18 more
TL;DR: In this article, the high-energy part of the spectrum was used to deduce branching ratios for the so far unobserved annihilation channels: R(p p →π 0 ω) = (2.38 ± 0.65)%, R( p p → π 0 η ) = (0.82 ± 0.04)% and an upper limit for the π0η′ channel was deduced.
Journal ArticleDOI
New results in the search for narrow states in the p system below threshold
B. Richter,L. Adiels,G. Backenstoss,I. Bergström,P. Blüm,Kjell Fransson,M. Glöckner,R. Guigas,M. Hasinoff,Andras Kerek,H. Koch,T. Kohler,M. Meyer,P. Pavlopoulos,H. Poth,U. Raich,J. Repond,M. Suffert,L. Tauscher,D. Tröster,Konstantin Zioutas +20 more
TL;DR: The γ-ray spectrum after p annihilation at rest was measured in two independent high-statistics runs as discussed by the authors, showing narrow peaks corresponding to masses of 1210, 1638, 1694 and 1771 MeV.
Journal ArticleDOI
Experimental determination of the branching ratios\(p\bar p \to 2\pi ^0 ,\pi ^0 \gamma \), and 2γ at rest
L. Adiels,G. Backenstoss,I. Bergström,Staffan Carius,Stef. Charalambous,M. D. Cooper,C. Findeisen,D. Hatzifotiadou,M. Hugi,Andras Kerek,H. O. Meyer,P. Pavlopoulos,J. Repond,L. Tauscher,D. Tröster,M. C. S. Williams,Konstantin Zioutas +16 more
TL;DR: The branching ratios of antiproton annihilations into the neutral final states 2π0, π0γ, and 2γ are measured by stopping antiprotons in liquid hydrogen as discussed by the authors.
Journal ArticleDOI
Precision measurement of strong interaction isotope effects in antiprotonic 16O, 17O, and 18O atoms
T. Kohler,P. Blüm,G. Büche,A. D. Hancock,H. Koch,A. Kreissl,H. Poth,U. Raich,D. Rohmann,G. Backenstoss,C. Findeisen,J. Repond,L. Tauscher,A. Nilsson,Staffan Carius,M. Suffert,S. Charalambus,M. Chardalas,Sp. Dedoussis,H. Daniel,T. von Egidy,F. J. Hartmann,W. Kanert,G. Schmidt,J. Reidy,M. Nicholas,A. Wolf +26 more
TL;DR: The strong interaction effects in antiprotonic 16O, 17O, and 18O atoms were measured at the CERN LEAR facility, where the shifts ϵ and the widths Γ of the 3D level were determined to be −112±20 eV ( 16 O ), −140±46 eV( 17 O ), −195±20eV ( 18 O ) and 495±45 eV
Journal ArticleDOI
Experimental study of the inclusiveη-spectrum fromp\(\bar p\) annihilations at rest in liquid hydrogen
L. Adiels,G. Backenstoss,I. Bergström,Staffan Carius,Stef. Charalambous,M. D. Cooper,C. Findeisen,Despina Hatzifotiadou,M. Hugi,Andras Kerek,H. O. Meyer,P. Pavlopoulos,J. Repond,L. Tauscher,D. Troester,M. C. S. Williams,Konstantin Zioutas +16 more
TL;DR: In this article, the inclusive η-momentum spectrum from mathematical expression annihilations at rest in liquid hydrogen was measured at LEAR and branching ratios were obtained for {Mathematical expression}, and ηη(...