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A precise measurement of 180 GeV muon energy losses in iron

P. Amaral A. Amorim K. Anderson A. Artikov R. Benetta S. Berglund C. Biscarat 1 O. Blanch G. Blanchot A. Bogush C. Boehm V. Boldea O. Borisov M. Bosman C. Bromberg S. Bravo A. Budagov Yu S. Burdin L. Caloba F. Camarena J. Carvalho M V. Castillo T. Cavalli Sforza V. Cavasinni a S. Cerqueira R. Chadelas 1 I. Chirikov Zorin G. Chlachidze M. Cobal F. Cogswell S. Cologna S. Constantinescu D. Costanzo B. Cowan M. Crouau 1 F. Daudon 1 M. David T. Davidek J. Dawson K. De M. Delfino T. del Prete A. de Santo B. Di Girolamo S. Dita R. Downing M. Engstroem D. Errede S. Errede F. Fassi A. Fenyuk A. Ferrer V. Flaminio J. Flix R. Garabik I. Gil O. Gildemeister V. Glagoley A. Gomes S. Gonzalez de la Hoz V. Grabski P. Grenier 1 H. Hakopian M. Haney S. Hellman A. Henriques C. Hebrard 1 E. Higon P. Holik S. Holmgren I. Hruska J. Huston K. Jo And S. Kakurin A. Karyukhin J. Khubua S. Kopikov P. Krivkova V. Kukhtin Y. Jkulchitsky M. Kuzmin S. Lami V. Lapin C. Lazzeroni A. Lebedev R. Leitner J. Li Y. Lomakin O. Lomakina M. Lokajicek J M. Lopez-Amengual A. Maio S. Malyukov F. Marroquin L. Mataix E. Mazzoni F S. Merritt R. Miller I. Minashvili L. Miralles Gerard Montarou 1 S. Nemecek M. Nessi A. Onofre a P. Ostankov A. Pacheco D. Pallin 1 D. Pantea R. Paoletti I C. Park J E. Pilcher J. Pinhao L. Price J. Proudfoot O. Pukhov G. Reinmuth 1 G. Renzoni R. Richards C. Roda J. Roldan J B. Romance V. Romanov P. Rosnet 1 H. Ruiz N. Rusakovitch E. Sanchis H. Sanders C. Santoni 1 J. Santo L. P. Says 1 J M. Seixas B. Sellden A. Semenov A. Shcelchkov M. Shochet J. Silva V. Simaitis a N. Sissakian A. Solodkov O. Solovyanov M. Sosebee K. Soustruznik F. Spano R. Stanek E. Starchenko Op. Stavina M. Suk I. Sykora F. Tang P. Tas J. Thaler Z D. Thome Filho S. Tokar N. Topilin S. Valklar M J. Varanda A. Vartapetian F. Vazeille 1 I. Vichou V. Vinogradov S. Vorozhtsov A. White H. Wolters N. Yamdagni G. Yarygin C. Yosef A. Zaitsev
Abstract : The energy loss spectrum of 180 GeV muons has been measured with the 5.6 m long finely segmented Module 0 of the ATLAS hadron tile calorimeter at the CERN SPS. The differential probability dP/d nu per radiation length of a fractional energy loss nu = Delta E/sub mu //E /sub mu / has been measured in the range 0.025 or= nu or=0.97; it is compared with theoretical predictions for energy losses due to bremsstrahlung, production of electron-positron pairs, and energetic knock-on electrons. The iron elastic form factor correction Delta /sub Fe//sup el/=1.63+or-0.17/sub stat/+or-023/sub syst$/ -/sub 0.14 //sup +0.20//sub theor/ to muon bremsstrahlung in the region of no screening of the nucleus by atomic electrons has been measured for the first time, and is compared with different theoretical predictions. (31 refs).
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Submitted on : Thursday, September 27, 2001 - 2:36:20 PM
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P. Amaral, A. Amorim, K. Anderson, A. Artikov, R. Benetta, et al.. A precise measurement of 180 GeV muon energy losses in iron. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2001, 20, pp.487-495. ⟨in2p3-00010443⟩

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