@article{3073924,
    title = "Measurement of pion and proton response and longitudinal shower profiles up to 20 nuclear interaction lengths with the ATLAS Tile calorimeter",
    author = "Adragna, P. and Alexa, C. and Anderson, K. and Antonaki, A. and Arabidze, A. and Batkova, L. and Batusov, V. and Beck, H.P. and Bergeaas Kuutmann, E. and Biscarat, C. and Blanchot, G. and Bogush, A. and Bohm, C. and Boldea, V. and Bosman, M. and Bromberg, C. and Budagov, J. and Burckhart-Chromek, D. and Caprini, M. and Caloba, L. and Calvet, D. and Carli, T. and Carvalho, J. and Cascella, M. and Castelo, J. and Castillo, M.V. and Cavalli-Sforza, M. and Cavasinni, V. and Cerqueira, A.S. and Clement, C. and Cobal, M. and Cogswell, F. and Constantinescu, S. and Costanzo, D. and Corso-Radu, A. and Cuenca, C. and Damazio, D.O. and Davidek, T. and De, K. and Del Prete, T. and Di Girolamo, B. and Dita, S. and Djobava, T. and Dobson, M. and Dotti, A. and Downing, R. and Efthymiopoulos, I. and Eriksson, D. and Errede, D. and Errede, S. and Farbin, A. and Fassouliotis, D. and Febbraro, R. and Fenyuk, A. and Ferdi, C. and Ferrer, A. and Flaminio, V. and Francis, D. and Fullana, E. and Gadomski, S. and Gameiro, S. and Garde, V. and Gellerstedt, K. and Giakoumopoulou, V. and Gildemeister, O. and Gilewsky, V. and Giokaris, N. and Gollub, N. and Gomes, A. and Gonzalez, V. and Gorini, B. and Grenier, P. and Gris, P. and Gruwe, M. and Guarino, V. and Guicheney, C. and Gupta, A. and Haeberli, C. and Hakobyan, H. and Haney, M. and Hellman, S. and Henriques, A. and Higon, E. and Holmgren, S. and Hurwitz, M. and Huston, J. and Iglesias, C. and Isaev, A. and Jen-La Plante, I. and Jon-And, K. and Joos, M. and Junk, T. and Karyukhin, A. and Kazarov, A. and Khandanyan, H. and Khramov, J. and Khubua, J. and Kolos, S. and Korolkov, I. and Krivkova, P. and Kulchitsky, Y. and Kurochkin, Yu. and Kuzhir, P. and Le Compte, T. and Lefevre, R. and Lehmann, G. and Leitner, R. and Lembesi, M. and Lesser, J. and Li, J. and Liablin, M. and Lokajicek, M. and Lomakin, Y. and Lupi, A. and Maidanchik, C. and Maio, A. and Makouski, M. and Maliukov, S. and Manousakis, A. and Mapelli, L. and Marques, C. and Marroquim, F. and Martin, F. and Mazzoni, E. and Merritt, F. and Miagkov, A. and Miller, R. and Minashvili, I. and Miralles, L. and Montarou, G. and Mosidze, M. and Myagkov, A. and Nemecek, S. and Nessi, M. and Nodulman, L. and Nordkvist, B. and Norniella, O. and Novakova, J. and Onofre, A. and Oreglia, M. and Pallin, D. and Pantea, D. and Petersen, J. and Pilcher, J. and Pina, J. and Pinhão, J. and Podlyski, F. and Portell, X. and Poveda, J. and Pribyl, L. and Price, L.E. and Proudfoot, J. and Ramstedt, M. and Richards, R. and Roda, C. and Romanov, V. and Rosnet, P. and Roy, P. and Ruiz, A. and Rumiantsev, V. and Russakovich, N. and Saltó, O. and Salvachua, B. and Sanchis, E. and Sanders, H. and Santoni, C. and Saraiva, J.G. and Sarri, F. and Satsunkevitch, I. and Says, L.-P. and Schlager, G. and Schlereth, J. and Seixas, J.M. and Selldèn, B. and Shalanda, N. and Shevtsov, P. and Shochet, M. and Silva, J. and Da Silva, P. and Simaitis, V. and Simonyan, M. and Sissakian, A. and Sjölin, J. and Solans, C. and Solodkov, A. and Soloviev, I. and Solovyanov, O. and Sosebee, M. and Spanò, F. and Stanek, R. and Starchenko, E. and Starovoitov, P. and Stavina, P. and Suk, M. and Sykora, I. and Tang, F. and Tas, P. and Teuscher, R. and Tokar, S. and Topilin, N. and Torres, J. and Tremblet, L. and Tsiareshka, P. and Tylmad, M. and Underwood, D. and Unel, G. and Usai, G. and Valero, A. and Valkar, S. and Valls, J.A. and Vartapetian, A. and Vazeille, F. and Vichou, I. and Vinogradov, V. and Vivarelli, I. and Volpi, M. and White, A. and Zaitsev, A. and Zenine, A. and Zenis, T.",
    journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
    year = "2010",
    volume = "615",
    number = "2",
    pages = "158-181",
    doi = "10.1016/j.nima.2010.01.037",
    keywords = "Beam configuration;  Beam energies;  Beam lines;  Electromagnetic energy;  Energy ranges;  GEANT4;  GEANT4 simulation;  Hadron calorimeters;  Hadronic physics;  Impinging particles;  Monte Carlo Simulation;  Nuclear interaction;  Parametrizations;  Projective geometry;  Proton energy;  Proton response;  Scintillator tiles;  Total energy, Calorimeters;  Calorimetry;  Computer simulation;  Electromagnetic waves;  Hadrons;  Monte Carlo methods;  Temperature measuring instruments;  Testing, Protons",
    abstract = "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 simulations using several hadronic physics lists. The measured longitudinal shower profiles are described by an analytical shower parametrization within an accuracy of 5-10%. The amount of energy leaking out behind the calorimeter is determined and parametrized as a function of the beam energy and the calorimeter depth. This allows for a leakage correction of test-beam results in the standard projective geometry. © 2010 Elsevier B.V."
}