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. J.; Antonaki, A.; Arabidze, A.; Batkova, L.; Batusov, V.; Beck, H. P.; Kuutmann, E. Bergeaas; Biscarat, C.; Blanchot, G.; Bogush, A.A.; Böhm, C.; Boldea, V.; Bosman, M.; Bromberg, C.; Budagov, J.; Burckhart-Chromek, D.; Caprini, M.; Calôba, L. P.; Calvet, D.; Carli, T.; Carvalho, J.; Cascella, M.; Castelo, J.; Castillo, Montserrat; Cavalli‐Sforza, M.; Cavasinni, V.; Cerqueira, A. S.; Clément, C.; Cobal, M.; Cogswell, F.; Constantinescu, S.; Costanzo, D.; Corso-Radu, A.; Cuenca, C.; Damazio, D. Oliveira; Davídek, T.; De, K.; Prete, T. Del; Girolamo, B. Di; Diţǎ, S.; Djobava, T.; Dobson, M.; Dotti, A.; Downing, Robert W.; Efthymiopoulos, I.; Eriksson, D.; Errede, D.; Errede, S.; Farbin, A.; Fassouliotis, D.; Febbraro, R.; Fenyuk, A. B.; Ferdi, C.; Ferrer, A.; Flaminio, V.; Francis, D.; Fullana, Esteban; Gadomski, S.; Gameiro, S.; Garde, V.; Gellerstedt, K.; Giakoumopoulou, V.; Gildemeister, O.; Gilewsky, V.; Giokaris, N.; Gollub, N.; Gomes, A.; González, V.; Gorini, B.; Grenier, P.; Gris, Ph.; Gruwé, M.; Guarino, V. J.; Guicheney, C.; Gupta, A.; Haeberli, C.; Hakobyan, H.; Haney, M.; Hellman, S.; Henriques, A.; Higón, E.; Holmgren, S. O.; Hurwitz, M.; Huston, J.; Iglesias, C.; Isaev, A. N.; Plante, I. Jen-La; Jon‐And, K.; Joos, M.; Junk, T. R.; Karyukhin, A. N.; Kazarov, A.; Khandanyan, H.; Khramov, J.; Khubua, J.; Kolos, S.; Korolkov, I.; Krivkova, P.; Kulchitsky, Y.; Kurochkin, Y. A.; Kuzhir, P.; Compte, Tom Le; Lefèvre, R.; Lehmann, G.; Leitner, R.; Lembesi, M.; Lesser, J.; Li, J.; Liablin, M.; Lokajı́ček, M.; Lomakin, Yu.F.; Lupi, A.; Maidanchik, C.; Maio, A.; Makouski, M.; Maliukov, S.; Manousakis, A.; Mapelli, L.; Marques, C. N.; Marroquim, F.; Martin, F. F.; Mazzoni, E.; Merritt, F. S.; Miagkov, A.; Miller, R.; Minashvili, I. A.; Miralles, L.; Montarou, G.; Mosidze, M.; Myagkov, A. G.; Němeček, S.; Nessi, M.; Nodulman, L.; Nordkvist, B.; Norniella, O.; Nováková, J.; Onofre, A.; Oreglia, M. J.; Pallin, D.; Pantea, D.; Petersen, J.; Pilcher, J. E.; Pina, J.; Pinhão, J.; Podlyski, F.; Portell, X.; Poveda, J.; Pribyl, L.; Price, L. E.; Proudfoot, J.; Ramstedt, M.; Richards, R.; Roda, C.; Romanov, V. M.; Rosnet, P.; Roy, Probir; Ruiz, A.; Rumiantsev, V.; Russakovich, N.; Saltó, O.; Salvachua, Belen; Sanchís, E.; Sanders, H.; Santoni, C.; Saraiva, J. G.; Sarri, F.; Satsunkevitch, I.; Says, L. P.; Schlager, G.; Schlereth, J. L.; Seixas, J. M.; Selldén, B.; Shalanda, N. A.; Shevtsov, P.; Shochet, M. J.; Silva, J.; Silva, P. Da; Simaitis, V.; Simonyan, M.; Sissakian, A. N.; Sjölin, J.; Solans, C. A.; Solodkov, A. A.; Soloviev, I.; Solovyanov, O. V.; Sosebee, M.; Spanò, F.; Stanek, R. W.; Starchenko, E. A.; Starovoitov, P.; Stavina, P.; Suk, M.; Sýkora, I.; Tang, F.; Tas, P.; Teuscher, R. J.; Tokár, S.; Topilin, N. D.; Torres, J.; Tremblet, L.; Tsiareshka, P. V.; Tylmad, M.; Underwood, D. G.; Ünel, G.; Usai, G.; Valero, A.; Valkár, Š.; Valls, J.; Vartapetian, A.; Vazeille, F.; Vichou, I.; Vinogradov, V. B.; Vivarelli, I.; Volpi, M.; White, A.; Zaitsev, A.; Zenine, A.; Ženiš, T.

doi:10.1016/j.nima.2010.01.037

Cited by 40 publications

(33 citation statements)

References 19 publications

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“…Jets are reconstructed from calorimeter energy clusters using the anti-k t algorithm [29,30] with a radius parameter R = 0.4. Corrections are applied in order to account for the effects of the non-compensating calorimeter, upstream material and other effects, by using p T and η-dependent correction factors derived from simulation and validated with test-beam [31] and collision data studies [32]. After applying quality requirements based on shower shape and signal timing with respect to the beam crossing, the selected jets must satisfy p T > 30 GeV, |η| < 2.8 and must be separated from the selected candidate muons by ΔR ≥ 0.4.…”

Section: Object and Event Selectionmentioning

confidence: 99%

Search for second generation scalar leptoquarks in pp collisions at $\sqrt{s}=7~\mbox{TeV}$ with the ATLAS detector

Aad¹,

Bella²,

Aubert³

et al. 2012

Eur. Phys. J. C

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The results of a search for the production of second generation scalar leptoquarks are presented for final states consisting of either two muons and at least two jets or a muon plus missing transverse momentum and at least two jets. A total of 1.03 fb −1 integrated luminosity of protonproton collision data produced by the Large Hadron Collider at √ s = 7 TeV and recorded by the ATLAS detector is used for the search. The event yields in the signal regions are found to be consistent with the Standard Model background expectations. The production of second generation leptoquarks is excluded for a leptoquark mass m LQ < 594 (685) GeV at 95 % confidence level, for a branching ratio of 0.5 (1.0) for leptoquark decay to a muon and a quark.

show abstract

Section: Object and Event Selectionmentioning

confidence: 99%

Search for second generation scalar leptoquarks in pp collisions at $\sqrt{s}=7~\mbox{TeV}$ with the ATLAS detector

Aad¹,

Bella²,

Aubert³

et al. 2012

Eur. Phys. J. C

Self Cite

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show abstract

“…ref. [12]) and it was constantly improved to describe these data. After the detector simulation the events were reconstructed and analyzed by the same software chain also used for data.…”

Section: Jhep09(2010)056 4 Monte Carlo Simulationmentioning

confidence: 99%

Performance of the ATLAS detector using first collision data

Aad¹,

Abat²,

Abbott³

et al. 2010

J. High Energ. Phys.

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More than half a million minimum-bias events of LHC collision data were collected by the ATLAS experiment in December 2009 at centre-of-mass energies of 0.9 TeV and 2.36 TeV. This paper reports on studies of the initial performance of the ATLAS detector from these data. Comparisons between data and Monte Carlo predictions are shown for distributions of several track-and calorimeter-based quantities. The good performance of the ATLAS detector in these first data gives confidence for successful running at higher energies.

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“…Figure 27 shows the difference between the response to protons and π + for two pseudorapidity bins. The response to protons is lower than the response to pions on average because a larger fraction of the initial energy is converted into an electromagnetic shower for pions [33,34]. This is evident in the E/p difference, where the response to pions is about 10% greater on average.…”

Section: Differences In Calorimeter Response Between Particles Of Difmentioning

confidence: 99%

A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 pp-collision data with the ATLAS detector

Aaboud¹,

Barnovska-Blenessy²,

Berger³

et al. 2017

Eur. Phys. J. C

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A measurement of the calorimeter response to isolated charged hadrons in the ATLAS detector at the LHC is presented. This measurement is performed with 3.2 nb of proton–proton collision data at from 2010 and 0.1 nb of data at from 2012. A number of aspects of the calorimeter response to isolated hadrons are explored. After accounting for energy deposited by neutral particles, there is a 5% discrepancy in the modelling, using various sets of Geant4 hadronic physics models, of the calorimeter response to isolated charged hadrons in the central calorimeter region. The description of the response to anti-protons at low momenta is found to be improved with respect to previous analyses. The electromagnetic and hadronic calorimeters are also examined separately, and the detector simulation is found to describe the response in the hadronic calorimeter well. The jet energy scale uncertainty and correlations in scale between jets of different momenta and pseudorapidity are derived based on these studies. The uncertainty is 2–5% for jets with transverse momenta above 2 , where this method provides the jet energy scale uncertainty for ATLAS.

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Measurement of pion and proton response and longitudinal shower profiles up to 20 nuclear interaction lengths with the ATLAS Tile calorimeter

Cited by 40 publications

References 19 publications

Search for second generation scalar leptoquarks in pp collisions at $\sqrt{s}=7~\mbox{TeV}$ with the ATLAS detector

Search for second generation scalar leptoquarks in pp collisions at $\sqrt{s}=7~\mbox{TeV}$ with the ATLAS detector

Performance of the ATLAS detector using first collision data

A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 pp-collision data with the ATLAS detector

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