Physics of cascading shower generation and propagation in matter: principles of high-energy, ultrahigh-energy and compensating calorimetry

Leroy, C.; Rancoita, P.G.

doi:10.1088/0034-4885/63/4/202

Cited by 29 publications

(31 citation statements)

References 306 publications

(620 reference statements)

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“…The longitudinal and transverse development of e.m. showers are well parametrised both for homogeneous and sampling calorimeters [25][26][27], hence the energy shape analysis can be used to improve the electron energy reconstruction. The e.m. shower shape parametrisation together with the knowledge of the interaction vertex position and of the direction of the electron, obtained from the emulsion data, are the basis of the method applied in this analysis, as detailed in [28].…”

Section: Energy Reconstructionmentioning

confidence: 99%

Final results of the search for νμ → νe oscillations with the OPERA detector in the CNGS beam

Agafonova

Aleksandrov

Anokhina

et al. 2018

J. High Energ. Phys.

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Abstract:The OPERA experiment has discovered the tau neutrino appearance in the CNGS muon neutrino beam, in agreement with the 3 neutrino flavour oscillation hypothesis. The OPERA neutrino interaction target, made of Emulsion Cloud Chambers, was particularly efficient in the reconstruction of electromagnetic showers. Moreover, thanks to the very high granularity of the emulsion films, showers induced by electrons can be distinguished from those induced by π 0 s, thus allowing the detection of charged current interactions of electron neutrinos. In this paper the results of the search for electron neutrino events using the full dataset are reported. An improved method for the electron neutrino energy estimation is exploited. Data are compatible with the 3 neutrino flavour mixing model expectations and are used to set limits on the oscillation parameters of the 3+1 neutrino mixing model, in which an additional mass eigenstate m 4 is introduced. At high ∆m 2 41 ( 0.1 eV 2 ), an upper limit on sin 2 2θ µe is set to 0.021 at 90% C.L. and ∆m 2 41 4 × 10 −3 eV 2 is excluded for maximal mixing in appearance mode.

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Section: Energy Reconstructionmentioning

confidence: 99%

Final results of the search for νμ → νe oscillations with the OPERA detector in the CNGS beam

Agafonova

Aleksandrov

Anokhina

et al. 2018

J. High Energ. Phys.

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“…The dimensions of calorimeters are 100 × 100 × 104.16 cm 3 and they are in such away that 95% of hadronic shower cascades energy is deposited in the calorimeter for 100 GeV pion (Adloff et al, 2009;Leroy and Rancoita, 2000). The structure of calorimeter is shown in Figure 1.…”

Section: Methodsmentioning

confidence: 99%

Comparison of the performance of analog and digital hadronic sampling calorimeters

Elmahroug¹,

Tellili²,

Chedly³

2013

Int. J. Phys. Sci.

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By using the tungsten as passive element and the Glass Resistive Plate Chambers (GRPCs) as active element, the gaseous hadronic calorimeter is studied as a possible detector for the future International Linear Collider (ILC). The results of the numerical study, using the GEANT4 simulation package, of the performance of this calorimeter when it is exposed to a negative pion beam in an energy range from 5 GeV to 100 GeV are presented in this paper. Operating characteristics of this prototype, such as signal linearity, energy resolution and reconstructed energy have been simulated and examined. Moreover, a comparison between the Digital Hadron Calorimeter (DHCAL) and the Analog Hadron Calorimeter (AHCAL) is made.

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“…These contributions to dE/dx rise almost linearly with energy, becoming as important as ionization losses at some "muon critical energy" E µc : 1183 GeV in plastic scintillator, 347 GeV in iron and 141 GeV in lead. 16 The tables of Lohmann et al [40] are commonly used. More extensive tables with a somewhat improved treatment of radiative losses are given by Groom et al [31], and an extension to nearly 300 materials is available on the Particle Data Group web pages [41].…”

Section: Mipsmentioning

confidence: 99%

“…If the equilibrium contribution is desired, absorber should be placed in the beam. In principle these radiative products should be detected with the 16 Other charged particles experience radiative losses as well, but there is no easy mass scaling for the radiative loss rate. In a calorimeter incident high-energy pions lose energy by both radiation and ionization until they interact, but the higher loss rate is of little consequence and in any case the radiated energy is absorbed.…”

Section: Mipsmentioning

confidence: 99%

“…Real calorimeters, with front em compartments, rear catchers, leakage, crack corrections, jet finding algorithms, and a myriad of other features, are described in dozens of test-beam study results, as well as in published studies of compensation, the role of neutrons, and other matters. These are discussed in detail in Wigmans' book [3] and review [15], the review by Leroy and Rancoita [16], and in their many citations. None of these practical problems are discussed here.…”

Section: Introductionmentioning

confidence: 99%

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Energy flow in a hadronic cascade: Application to hadron calorimetry

Groom

2007

Nuclear Instruments and Methods in Physics Research Section A:

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The hadronic cascade description developed in an earlier paper is extended to the response of an idealized fine-sampling hadron calorimeter. Calorimeter response is largely determined by the transfer of energy E π 0 from the hadronic to the electromagnetic sector via π 0 production. Fluctuations in this quantity produce the "constant term" in hadron calorimeter resolution. The increase of its fractional mean, f 0 π 0 = E π 0 /E, with increasing incident energy E causes the energy dependence of the π/e ratio in a noncompensating calorimeter. The mean hadronic energy fraction, f 0 h = 1 − f 0 π 0 , was shown to scale very nearly as a power law in E: f 0 h = (E/E 0 ) m−1 , where E 0 ≈ 1 GeV for pions, and m ≈ 0.83. It follows that π/e = 1 − (1 − h/e)(E/E 0 ) m−1 , where electromagnetic and hadronic energy deposits are detected with efficiencies e and h, respectively. If the mean fraction of f 0 h which is deposited as nuclear gamma rays is f 0 γ , then the expression becomes π/e = 1 − (1 − h ′ /e)(1 − f 0 γ )(E/E 0 ) m−1 . Fluctuations in these quantities, along with sampling fluctuations, are incorporated to give an overall understanding of resolution, which is different from the usual treatments in interesting ways. The conceptual framework is also extended to the response to jets and the difference between π and p response.

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Physics of cascading shower generation and propagation in matter: principles of high-energy, ultrahigh-energy and compensating calorimetry

Cited by 29 publications

References 306 publications

Final results of the search for νμ → νe oscillations with the OPERA detector in the CNGS beam

Final results of the search for νμ → νe oscillations with the OPERA detector in the CNGS beam

Comparison of the performance of analog and digital hadronic sampling calorimeters

Energy flow in a hadronic cascade: Application to hadron calorimetry

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