Y
Y. C. Pachmayer
Researcher at Goethe University Frankfurt
Publications - 40
Citations - 1266
Y. C. Pachmayer is an academic researcher from Goethe University Frankfurt. The author has contributed to research in topics: Meson & Baryon. The author has an hindex of 19, co-authored 40 publications receiving 1170 citations. Previous affiliations of Y. C. Pachmayer include Spanish National Research Council.
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Journal ArticleDOI
The high-acceptance dielectron spectrometer HADES
G. Agakichiev,C. Agodi,H. Alvarez-Pol,E. V. Atkin,E. Badura,A. Balanda,A. Bassi,R. Bassini,G. Bellia,G. Bellia,D. Belver,Alexander Belyaev,M. Benovic,D. Bertini,Jaroslav Bielcik,M. Böhmer,C. Boiano,H. Bokemeyer,A. Bartolotti,J. L. Boyard,S. Brambilla,Peter Braun-Munzinger,P. Cabanelas,E. Castro,V. Chepurnov,S. P. Chernenko,T. Christ,R. Coniglione,Luigi Cosentino,M. Dahlinger,H. W. Daues,M. Destefanis,J. S. Díaz,F. Dohrmann,Rugard Dressler,I. Duran,A. Dybczak,Thomas Eberl,Wolfgang Enghardt,L. Fabbietti,O. V. Fateev,C. Fernandez,Paolo Finocchiaro,J. Friese,I. Fröhlich,B. Fuentes,Tetyana Galatyuk,C. Garabatos,J. A. Garzón,B. Genolini,R. Gernhäuser,C. Gilardi,H. Gilg,M. B. Golubeva,D. González-Díaz,Eckart Grosse,Fedor Guber,J. Hehner,K. Heidel,T. Heinz,T. Hennino,S. Hlavac,J. Hoffmann,R. Holzmann,J. Homolka,J. Hutsch,A.P. Ierusalimov,I. Iori,I. Iori,A. Ivashkin,M. Jaskula,J. C. Jourdain,M. Jurkovic,Burkhard Kampfer,M. Kajetanowicz,Kalliopi Kanaki,Tatiana Karavicheva,A. Kastenmüller,L. Kidon,Paul Kienle,D. Kirschner,I. Koenig,W. Koenig,H. J. Körner,B. W. Kolb,U. Kopf,K. Korcyl,R. Kotte,A. Kozuch,F. Krizek,R. Krücken,Wolfgang Kuhn,A. Kugler,R. Kulessa,A. B. Kurepin,T. Kurtukian-Nieto,S. Lang,J. S. Lange,K. Lapidus,J. Lehnert,U. Leinberger,C. Lichtblau,E. Lins,C. Lippmann,M. Lorenz,D. Magestro,L. Maier,P. Maier-Komor,C. Maiolino,A. Malarz,T. Marek,J. Markert,Volker Metag,B. Michalska,J. Michel,E. Migneco,E. Migneco,D. Mishra,E. Morinière,Jehad Mousa,M. Münch,C. Müntz,L. Naumann,A. Nekhaev,W. Niebur,Jan Novotny,R. W. Novotny,W. Ott,J. Otwinowski,Y. C. Pachmayer,Marek Palka,Y. Parpottas,V. Pechenov,O. Pechenova,T. Perez Cavalcanti,M. Petri,Paolo Piattelli,J. Pietraszko,R. Pleskac,M. Ploskon,V. Pospíšil,J. Pouthas,W. Prokopowicz,Witold Przygoda,B. Ramstein,Andrey Reshetin,James Ritman,G. Roche,G. Rodriguez-Prieto,K. Rosenkranz,P. Rosier,M. Roy-Stephan,A. Rustamov,J. Sabin-Fernandez,A. Sadovsky,B. Sailer,Piotr Salabura,C. Salz,M. Sánchez,Piera Sapienza,D. Schäfer,Rainer Martin Schicker,A. Schmah,H. Schön,W. Schön,C. Schroeder,S. Schroeder,E. Schwab,Peter Senger,K.A. Shileev,R.S. Simon,Maximilian W. A. Skoda,V. T. Smolyankin,L. Smykov,Manfred Sobiella,Yu. G. Sobolev,S. Spataro,B. Spruck,H. Stelzer,H. Ströbele,Joachim Stroth,C. Sturm,M. Sudol,M. Suk,M. Szczybura,A. Taranenko,A. Tarantola,K. Teilab,V. Tiflov,A. Tikhonov,P. Tlusty,A. Toia,M. Traxler,R. Trebacz,A. Yu. Troyan,H. Tsertos,I. Turzo,A. Ulrich,D. Vassiliev,A. Vazquez,Y. Volkov,V. Wagner,C. Wallner,W. Walus,Y. Wang,M. Weber,Jochen Wieser,S. Winkler,M. Wisniowski,T. Wojcik,J. Wüstenfeld,S. Yurevich,Yu.V. Zanevsky,Karl Zeitelhack,A. Zentek,P. Zhou,D. Zovinec,P. Zumbruch +217 more
TL;DR: HADES as discussed by the authors is a versatile magnetic spectrometer aimed at studying dielectron production in pion, proton and heavy-ion-induced collisions, which includes a ring imaging gas Cherenkov detector for electron-hadron discrimination, a tracking system consisting of a set of 6 superconducting coils producing a toroidal field and drift chambers, and a multiplicity and electron trigger array for additional electron hadron discrimination.
Journal ArticleDOI
Searching a dark photon with HADES
G. Agakishiev,A. Balanda,D. Belver,Alexander Belyaev,J. C. Berger-Chen,A. Blanco,M. Böhmer,J. L. Boyard,P. Cabanelas,S. P. Chernenko,A. Dybczak,Eliane Epple,L. Fabbietti,O. V. Fateev,Paolo Finocchiaro,P. Fonte,J. Friese,I. Fröhlich,Tetyana Galatyuk,J. A. Garzón,R. Gernhäuser,K. Göbel,M. B. Golubeva,D. González-Díaz,Fedor Guber,M. Gumberidze,T. Heinz,T. Hennino,R. Holzmann,A.P. Ierusalimov,I. Iori,A. Ivashkin,M. Jurkovic,B. Kämpfer,Tatiana Karavicheva,I. Koenig,W. Koenig,B. W. Kolb,G. Kornakov,R. Kotte,A. Krása,F. Krizek,R. Krücken,H. Kuc,H. Kuc,Wolfgang Kuhn,A. Kugler,A. B. Kurepin,V. P. Ladygin,R. Lalik,S. Lang,Kirill Lapidus,A. Lebedev,T. Liu,L. Lopes,M. Lorenz,L. Maier,A. Mangiarotti,J. Markert,Volker Metag,B. Michalska,J. Michel,C. Müntz,L. Naumann,Y. C. Pachmayer,Marek Palka,Y. Parpottas,V. Pechenov,O. Pechenova,V. Petousis,J. Pietraszko,Witold Przygoda,B. Ramstein,Andrey Reshetin,A. Rustamov,A. Sadovsky,Piotr Salabura,T. Scheib,H. Schuldes,A. M. Schmah,E. Schwab,J. Siebenson,Yu. G. Sobolev,S. Spataro,B. Spruck,H. Ströbele,Joachim Stroth,C. Sturm,A. Tarantola,K. Teilab,P. Tlusty,M. Traxler,R. Trebacz,H. Tsertos,T. A. Vasiliev,V. Wagner,Michael Weber,C. Wendisch,J. Wüstenfeld,S. Yurevich,Yu.V. Zanevsky +100 more
TL;DR: In this paper, an upper bound on the branching ratio of the helicity-suppressed direct decay of the η meson η → e + e − was obtained for the mass range M(U)= 0.02 - 0.55 GeV/c 2 and is compared with the present world data set.
Journal ArticleDOI
Study of dielectron production in C+C collisions at 1-A-GeV
G. Agakishiev,C. Agodi,H. Alvarez-Pol,A. Balanda,R. Bassini,G. Bellia,D. Belver,Alexander Belyaev,A. Blanco,M. Böhmer,A. Bortolotti,J. L. Boyard,Peter Braun-Munzinger,P. Cabanelas,E. Castro,S. P. Chernenko,T. Christ,M. Destefanis,J. S. Díaz,F. Dohrmann,A. Dybczak,Thomas Eberl,Laura Fabbietti,O. V. Fateev,Paolo Finocchiaro,P. Fonte,J. Friese,I. Fröhlich,Tetyana Galatyuk,J. A. Garzón,Roman Gernhäuser,A. Gil,C. Gilardi,M. B. Golubeva,D. González-Díaz,E. Grosse,Fedor Guber,M. Heilmann,T. Heinz,T. Hennino,R. Holzmann,A.P. Ierusalimov,I. Iori,A. Ivashkin,M. Jurkovic,B. Kämpfer,M. Kajetanowicz,Kalliopi Kanaki,Tatiana Karavicheva,D. Kirschner,I. Koenig,W. Koenig,B. W. Kolb,R. Kotte,A. Kozuch,A. Krása,Filip Krizek,R. Krücken,Wolfgang Kuhn,A. Kugler,A. B. Kurepin,J. Lamas-Valverde,S. Lang,J. S. Lange,K. Lapidus,L. Lopes,L. Maier,A. Mangiarotti,J. Marín,J. Markert,Volker Metag,B. Michalska,D. Mishra,E. Morinière,Jehad Mousa,M. Münch,C. Müntz,L. Naumann,R. Novotny,J. Otwinowski,Y. C. Pachmayer,Marek Palka,Y. Parpottas,V. Pechenov,O. Pechenova,T. Perez Cavalcanti,J. Pietraszko,R. Pleskac,V. Pospíšil,Witold Przygoda,B. Ramstein,Andrey Reshetin,M. Roy-Stephan,A. Rustamov,A. Sadovsky,B. Sailer,Piotr Salabura,A. M. Schmah,C. Schroeder,E. Schwab,R.S. Simon,Yu. G. Sobolev,S. Spataro,B. Spruck,H. Ströbele,Joachim Stroth,C. Sturm,M. Sudol,A. Tarantola,K. Teilab,P. Tlusty,A. Toia,M. Traxler,R. Trebacz,H. Tsertos,I. Veretenkin,V. Wagner,M. Weber,H. Wen,M. Wisniowski,T. Wojcik,J. Wüstenfeld,S. Yurevich,Yu.V. Zanevsky,P. Zhou,P. Zumbruch +125 more
TL;DR: In this paper, the emission of e+ e- pairs from C + C collisions at an incident energy of 1 GeV per nucleon has been investigated, and measured production probabilities, spanning from the π0-Dalitz to the ρ / ω invariant mass region, display a strong excess above the cocktail of standard hadronic sources.
Journal ArticleDOI
Origin of the low-mass electron pair excess in light nucleus-nucleus collisions
G. Agakichiev,A. Balanda,D. Belver,Alexander Belyaev,A. Blanco,M. Böhmer,J. L. Boyard,Peter Braun-Munzinger,P. Cabanelas,E. Castro,S. P. Chernenko,T. Christ,M. Destefanis,J. S. Díaz,F. Dohrmann,A. Dybczak,Laura Fabbietti,O. V. Fateev,Paolo Finocchiaro,P. Fonte,J. Friese,I. Fröhlich,Tetyana Galatyuk,J. A. Garzón,R. Gernhäuser,A. Gil,C. Gilardi,K. Göbel,M. B. Golubeva,D. González-Díaz,Fedor Guber,T. Hennino,R. Holzmann,I. Iori,A. Ivashkin,M. Jurkovic,B. Kämpfer,Tatiana Karavicheva,D. Kirschner,I. Koenig,W. Koenig,B. W. Kolb,R. Kotte,Filip Krizek,R. Krücken,Wolfgang Kuhn,A. Kugler,A. B. Kurepin,S. Lang,J. S. Lange,K. Lapidus,T. Liu,L. Lopes,M. Lorenz,L. Maier,A. Mangiarotti,J. Markert,Volker Metag,B. Michalska,J. Michel,E. Morinière,Jehad Mousa,C. Müntz,L. Naumann,J. Otwinowski,Y. C. Pachmayer,Marek Palka,Y. Parpottas,V. Pechenov,O. Pechenova,J. Pietraszko,Witold Przygoda,B. Ramstein,Andrey Reshetin,A. Rustamov,A. Sadovsky,Piotr Salabura,A. Schmah,E. Schwab,Yu. G. Sobolev,S. Spataro,B. Spruck,H. Ströbele,Joachim Stroth,C. Sturm,M. Sudol,A. Tarantola,K. Teilab,P. Tlusty,M. Traxler,R. Trebacz,H. Tsertos,V. Wagner,M. Weber,M. Wisniowski,T. Wojcik,J. Wüstenfeld,S. Yurevich,Yu.V. Zanevsky,P. Zhou +99 more
TL;DR: In this article, the electron pairs were reconstructed for n + p reactions by detecting the proton spectator from the deuteron breakup with the HADES spectrometer, and the yield of electron pairs with invariant mass M e + e − > 0.15 GeV / c 2 was found to be an order of magnitude larger in N + P reactions as compared to N + p.
Journal ArticleDOI
Hyperon production in Ar + KCl collisions at 1.76A GeV
G. Agakishiev,A. Balanda,B. Bannier,R. Bassini,D. Belver,Alexander Belyaev,A. Blanco,M. Böhmer,J. L. Boyard,P. Cabanelas,E. Castro,S. P. Chernenko,T. Christ,M. Destefanis,J. S. Díaz,F. Dohrmann,A. Dybczak,Thomas Eberl,E. Epple,Laura Fabbietti,O. V. Fateev,Paolo Finocchiaro,P. Fonte,J. Friese,I. Fröhlich,Tetyana Galatyuk,J. A. Garzón,Roman Gernhäuser,A. Gil,C. Gilardi,M. B. Golubeva,D. González-Díaz,Fedor Guber,M. Gumberidze,M. Heilmann,T. Heinz,T. Hennino,R. Holzmann,P. Huck,I. Iori,A. Ivashkin,M. Jurkovic,B. Kämpfer,Kalliopi Kanaki,Tatiana Karavicheva,D. Kirschner,I. Koenig,W. Koenig,B. W. Kolb,R. Kotte,Filip Krizek,R. Krücken,Wolfgang Kuhn,A. Kugler,A. B. Kurepin,S. Lang,J. S. Lange,Kirill Lapidus,T. Liu,L. Lopes,M. Lorenz,L. Maier,A. Mangiarotti,J. Markert,Volker Metag,B. Michalska,J. Michel,D. Mishra,E. Morinière,Jehad Mousa,C. Müntz,L. Naumann,J. Otwinowski,Y. C. Pachmayer,Marek Palka,Y. Parpottas,V. Pechenov,O. Pechenova,T. Perez Cavalcanti,J. Pietraszko,Witold Przygoda,B. Ramstein,Andrey Reshetin,M. Roy-Stephan,A. Rustamov,A. Sadovsky,B. Sailer,Piotr Salabura,A. M. Schmah,E. Schwab,J. Siebenson,Yu. G. Sobolev,S. Spataro,B. Spruck,H. Ströbele,Joachim Stroth,C. Sturm,A. Tarantola,K. Teilab,P. Tlusty,M. Traxler,R. Trebacz,H. Tsertos,V. Wagner,M. Weber,C. Wendisch,M. Wisniowski,T. Wojcik,J. Wüstenfeld,S. Yurevich,Yu.V. Zanevsky,P. Zhou,P. Zumbruch +112 more
TL;DR: In this paper, transverse momentum spectra, rapidity distribution and multiplicity of Hyperons measured with the HADES spectrometer in the reaction Ar(1.76AGeV) + KCl were presented.