Measurement of pion and proton response and longitudinal shower profiles up to 20 nuclear interaction lengths with the ATLAS Tile calorimeter
- Adragna, P.
- Alexa, C.
- Anderson, K.
- Antonaki, A.
- Arabidze, A.
- Batkova, L.
- Batusov, V.
- Beck, H.P.
- Bergeaas Kuutmann, E.
- Biscarat, C.
- Blanchot, G.
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- Bosman, M.
- Bromberg, C.
- Budagov, J.
- Burckhart-Chromek, D.
- Caprini, M.
- Caloba, L.
- Calvet, D.
- Carli, T.
- Carvalho, J.
- Cascella, M.
- Castelo, J.
- Castillo, M.V.
- Cavalli-Sforza, M.
- Cavasinni, V.
- Cerqueira, A.S.
- Clement, C.
- Cobal, M.
- Cogswell, F.
- Constantinescu, S.
- Costanzo, D.
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- Cuenca, C.
- Damazio, D.O.
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- Dita, S.
- Djobava, T.
- Dobson, M.
- Dotti, A.
- Downing, R.
- Efthymiopoulos, I.
- Eriksson, D.
- Errede, D.
- Errede, S.
- Farbin, A.
- Fassouliotis, D.
- Febbraro, R.
- Fenyuk, A.
- Ferdi, C.
- Ferrer, A.
- Flaminio, V.
- Francis, D.
- Fullana, E.
- Gadomski, S.
- Gameiro, S.
- Garde, V.
- Gellerstedt, K.
- Giakoumopoulou, V.
- Gildemeister, O.
- Gilewsky, V.
- Giokaris, N.
- Gollub, N.
- Gomes, A.
- Gonzalez, V.
- Gorini, B.
- Grenier, P.
- Gris, P.
- Gruwe, M.
- Guarino, V.
- Guicheney, C.
- Gupta, Anupam
- Haeberli, C.
- Hakobyan, H.
- Haney, M.
- Hellman, S.
- Henriques, A.
- Higon, E.
- Holmgren, S.
- Hurwitz, M.
- Huston, J.
- Iglesias, C.
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- Jen-La Plante, I.
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- Karyukhin, A.
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- Khramov, J.
- Khubua, J.
- Kolos, S.
- Korolkov, I.
- Krivkova, P.
- Kulchitsky, Y.
- Kurochkin, Yu.
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- Lesser, J.
- Li, J.
- Liablin, M.
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- Maidanchik, C.
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- Onofre, A.
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- Pantea, D.
- Petersen, J.
- Pilcher, J.
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- Ramstedt, M.
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- Roy, Pascal
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- Solodkov, A.
- Soloviev, I.
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- Suk, M.
- Sykora, I.
- Tang, F.
- Tas, P.
- Teuscher, R.
- Tokar, S.
- Topilin, N.
- Torres, J.
- Tremblet, L.
- Tsiareshka, P.
- Tylmad, M.
- Underwood, D.
- Unel, G.
- Usai, G.
- Valero, A.
- Valkar, S.
- Valls, J.A.
- Vartapetian, A.
- Vazeille, F.
- Vichou, I.
- Vinogradov, V.
- Vivarelli, I.
- Volpi, M.
- White, A.
- Zaitsev, A.
- Zenine, A.
- Zenis, T.
DOIAbstract
The response of pions and protons in the energy range of 20–180 GeV, produced at CERN's SPS H8 test-beam line in the ATLAS iron–scintillator Tile hadron calorimeter, has been measured. The test-beam configuration allowed the measurement of the longitudinal shower development for pions and protons up to 20 nuclear interaction lengths. It was found that pions penetrate deeper in the calorimeter than protons. However, protons induce showers that are wider laterally to the direction of the impinging particle. Including the measured total energy response, the pion-to-proton energy ratio and the resolution, all observations are consistent with a higher electromagnetic energy fraction in pion-induced showers. The data are compared with GEANT4 simu...
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