Studies of the response of the prototype CMS hadron calorimeter, including magnetic field effects, to pion, electron, and muon beams

Abramov, V.; Acharya, B. S.; Akchurin, N.; Aтанасов, И.; Baiatian, G.; Ball, A. H.; Banerjee, S.; Barbaro, P. de; Barnes, V. E.; Bencze, G.; Bodek, A.; Booke, M.; Budd, H. S.; Cremaldi, L.; Cushman, P.; Dugad, S.; Дімітров, Л.; Dyshkant, A.; Elias, J. E.; Евдокимов, В. Н.; Fong, D. G.; Freeman, J.; Genchev, V.; Goncharov, P. I.; Green, D.; Gurtu, A.; Hagopian, V.; Iaydjiev, P.; Korneev, Yu. P.; Krinitsyn, A. N.; Krishnaswami, Govind S.; Krishnaswamy, M. R.; Kryshkin, V. I.; Kunori, S.; Laasanen, A. T.; Lazic, D.; Levchuk, L.; Litov, L.; Mondal, N. K.; Moulik, T.; Narasimham, V. S.; Nemashkalo, A.A.; Onel, Y.; Petrov, P.; Petukhov, Y.; Piperov, S.; Popov, V.F.; Reidy, J.; Ronzhin, A.; Ruchti, R.; Singh, J. B.; Shen, Qing; Sirunyan, A. M.; Skuja, A.; Skup, E.; Sorokin, P.; Sudhakar, K.; Summers, D. J.; Szoncsó, F.; Tereshenko, S.I.; Timmermans, C.; Tonwar, S. C.; Turchanovich, L.K.; Tyukov, V.; Volodko, A.; Yukaev, A. I.; Zaitchenko, A.; Zatserklyaniy, A.

doi:10.1016/s0168-9002(00)00711-7

Cited by 20 publications

(12 citation statements)

References 18 publications

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“…The output of the QIE contains 2 bits of range (exponent) and 5 bits of mantissa. Details of the HB geometry, construction and electronics are reported elsewhere [5][6][7][8].…”

Section: Hcal Barrel (Hb) Calorimetermentioning

confidence: 99%

The CMS barrel calorimeter response to particle beams from 2 to 350 GeV/c

Abdullin¹,

Abramov²,

Acharya³

et al. 2009

Eur. Phys. J. C

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The response of the CMS barrel calorimeter (electromagnetic plus hadronic) to hadrons, electrons and muons over a wide momentum range from 2 to 350 GeV/c has been measured. To our knowledge, this is the widest range of momenta in which any calorimeter system has been studied. These tests, carried out at the H2 beam-line at CERN, provide a wealth of information, especially at low energies. The analysis of the differences in calorimeter response to charged pions, kaons, protons and antiprotons and a detailed discussion of the underlying phenomena are presented. We also show techniques that apply corrections to the signals from the considerably different electromagnetic (EB) and hadronic (HB) barrel calorimeters in reconstructing the energies of hadrons. Above 5 GeV/c, these corrections improve the energy resolution of the combined system where the stochastic term equals 84.7 ± 1.6% and the constant term is 7.4 ± 0.8%. The corrected mean response remains constant within 1.3% rms.

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“…The output of the QIE contains 2 bits of range (exponent) and 5 bits of mantissa. Details of the HB geometry, construction and electronics are reported elsewhere [5][6][7][8].…”

Section: Hcal Barrel (Hb) Calorimetermentioning

confidence: 99%

The CMS barrel calorimeter response to particle beams from 2 to 350 GeV/c

Abdullin¹,

Abramov²,

Acharya³

et al. 2009

Eur. Phys. J. C

Self Cite

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“…H & technique The expected response can be calculated from the e/ ratio measured for different energies with sets of isolated particles [14,17]. Isolated particles can be identified during the data taking.…”

Section: Determination Of the Calorimeter Expected Response To Chargementioning

confidence: 99%

“…was used to account for the fraction of charged particle energy deposited in the ECAL as determined from the same test beam data [14].…”

Section: Determination Of the Calorimeter Expected Response To Chargementioning

confidence: 99%

Jet energy correction with charged particle tracks in CMS

et al. 2005

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The performance of a jet-energy-correction algorithm using reconstructed charged particle tracks is presented. The jet energy correction allows the jet energy scale to be restored and improves the energy resolution for jets with energies up to 120 GeV. For low energy jets (20 GeV) it improves the resolution by a factor 1.7 with respect to uncorrected jets. For 100 GeV jets the resolution improves by 15%. The deviation from unity of the ratio of the reconstructed to the generated jet transverse energies decreases by a factor two for low-¤ ¦ ¥

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“…To compensate for the radiation damage at ¡ ¢ ¡ above 2.0, HE has extra longitudinal segments to allow correction for signal loss. Various sections of the calorimeter have been tested using pion, proton, electron and muon beams [2]. For the test beam at CERN a large motion table has been constructed on which a 40 segment of the calorimeter can be placed.…”

confidence: 99%

What's New With the CMS Hadron Calorimeter

Hagopian¹

2002

Advanced Technology and Particle Physics

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The CMS Hadron Calorimeter is designed to measure hadron jets, single hadrons and single 's. The Central Barrel and the two End Caps, made of brass and scintillators cover the ¡ £ ¢ ¤ ¡ range of 0.0 to 3.0. The two Forward Calorimeters made of iron and quartz fibers extend the ¡ ¥ ¢ ¦ ¡ range to 5.0. Scintillators are also placed outside of the magnet coil, within the muon system to measure the energy leakage from the Central Barrel. The construction of the calorimeter is about 50% complete. Several design changes were made to simplify the calorimeter and reduce the cost. The longitudinal segmentation of the central barrel and end caps was reduced by one unit. The quartz fiber diameter was doubled from 300 to 600 microns. Improvements were made to the Hybrid Photodetectors (HPD) and various other components. The special purpose ADC (QIE) and other electronics are in prototype stage.

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Studies of the response of the prototype CMS hadron calorimeter, including magnetic field effects, to pion, electron, and muon beams

Cited by 20 publications

References 18 publications

The CMS barrel calorimeter response to particle beams from 2 to 350 GeV/c

The CMS barrel calorimeter response to particle beams from 2 to 350 GeV/c

Jet energy correction with charged particle tracks in CMS

What's New With the CMS Hadron Calorimeter

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