Charged pion production in C+C and Ar+KCl collisions measured with HADES

The HADES Collaboration: P.Tlusty , G.Agakishiev , A.Balanda , G.Bellia , D.Belver , A.Belyaev , A.Blanco , M.Boehmer

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J.L.Boyard P.Braun-Munzinger P.Cabanelas E.Castro S.Chernenko T.Christ M.Destefanis J.Diaz F.Dohrmann A.Dybczak L.Fabbietti O.Fateev P.Finocchiaro P.Fonte J.Friese I.Froehlich T.Galatyuk J.A.Garzon R.Gernhaeuser A.Gil C.Gilardi M.Golubeva D.Gonzalez-Diaz E.Grosse F.Guber M.Heilmann T.Hennino R.Holzmann A.Ierusalimov I.Iori A.Ivashkin M.Jurkovic B.Kaempfer K.Kanaki T.Karavicheva D.Kirschner I.Koenig W.Koenig B.W.Kolb R.Kotte A.Kozuch A.Krasa F.Krizek R.Kruecken W.Kuehn A.Kugler A.Kurepin J.Lamas-Valverde S.Lang J.S.Lange K.Lapidus T.Liu L.Lopes M.Lorenz L.Maier A.Mangiarotti J.Marin J.Markert V.Metag B.Michalska J.Michel D.Mishra E.Moriniere J.Mousa C.Muentz L.Naumann R.Novotny J.Otwinowski Y.C.Pachmayer M.Palka Y.Parpottas V.Pechenov O.Pechenova T.Perez Cavalcanti J.Pietraszko W.Przygoda B.Ramstein A.Reshetin A.Rustamov A.Sadovsky P.Salabura A.Schmah R.Simon Yu.G.Sobolev S.Spataro B.Spruck H.Stroebele J.Stroth C.Sturm M.Sudol A.Tarantola K.Teilab M.Traxler R.Trebacz H.Tsertos I.Veretenkin V.Wagner M.Weber M.Wisniowski J.Wuestenfeld S.Yurevich Y.Zanevsky P.Zhou P.Zumbruch

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keywords chargedcollisionsdistributionshadespionproductiontransverseagev

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Results of a study of charged pion production in 12C+12C collisions at incident beam energies of 1A GeV and 2A GeV, and 40Ar+natKCl at 1.76AGeV, using the spectrometer HADES at GSI, are presented. We have performed a measurement of the transverse momentum distributions of pi+- mesons covering a fairly large rapidity interval, in case of the C+C collision system for the first time. The yields, transverse mass and angular distributions are compared with a transport model as well as with existing data from other experiments.

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Charged pion production in C+C and Ar+KCl collisions measured with HADES

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