A MEASUREMENT OF THE ENERGY-LOSS SPECTRUM OF 150 GEV MUONS IN IRON

Authors
BERGER E BLAIR R FUESS T GUARINO V HILL N MAGILL S MAY E NODULMAN L PRICE L PROUDFOOT J STANEK R UNDERWOOD D WAGNER R WICKLUND B BLANCHOT G BOSMAN M CASADO P CAVALLISFORZA M EFTHYMIOPOULOS I IVANYUSHENKOV Y JUSTE A MIRALLES L ORTEU S PADILLA C PERLAS JA RIU I RONCEUX B TEUBERT F ARSENESCU R CONSTANTINESCU S BLAJ C BOLDEA V DITA S COBAL M GILDEMEISTER O NESSI M HENRIQUES A POGGIOLI L SONDEREGGER P KARAPETIAN G ANDERSON K BLUCHER E EVANS H MERRITT F PILCHER J SANDERS H SHOCHET M TANG F TURCOT A WAGNER D AJALTOUNI Z BADAUD F BOUHEMAID N BRETTE P BROSSARD M CHADELAS R CHEVALEYRE JC CROUAU M DAUDON F DUGNE JJ MICHEL B MONTAROU G MUANZA GS PALLIN D PLOTHOWBESCH H POIROT S REINMUTH G SAYS LP VAZEILLE F ASTVATSATUROV A BORISOV O BUDAGOV J CHIRIKOVZORIN I CHLACHIDZE G GLAGOLEV V KAKURIN S KOLOMOETS V KOVTUN V KUKHTIN V LEBEDEV A LIBA I LOMAKINA O LOMAKIN Y MALYUKOV S MINASHVILI I PANTEA D PUKHOV O ROMANOV V RUSSAKOVICH N SENCHISHIN V SEMENOV A SISSAKIAN A SHCHELCHKOV A SHEVTSOV V STUDENOV S TOKAR S TOPILIN N VINOGRADOV V VOROZHTSOV S YARYGIN G COGSWELL F DOWNING R ERREDE D ERREDE S HANEY M SIMAITIS V THALER J AMARAL P AMORIM A CARVALHO J DAVID M GOMES A MAIO A MARTINS JP ONOFRE A WOLTERS H BROMBERG C HUSTON J MILLER R RICHARDS R YOSEF C ALIFANOV A BOGUSH A GOLUBEV V RUMYANTSEV V KULCHITSKY Y ANGELINI C AUTIERO D CAVASINNI V COSTANZO D DESANTO A DELPRETE T DIGIROLAMO B FLAMINIO V LAMI S LAZZERONI C MAZZONI E RENZONI G DAVIDEK T DOLEJSI J DOLEZAL Z LEITNER R SOUSTRUZNIK K SUK M TAS P TRKA Z VALKAR S ZDRAZIL M LOKAJICEK M NEMECEK S KARYUKHIN A KLYUKHIN V KHOKHLOV Y KOPIKOV S KOSTRIKOV M LAPIN V PROTOPOPOV Y SIDOROV V SOLODKOV A STARCHENKO E SURKOV A ZAITSEV A CALOBA L GASPAR M MARROQUIN F PEREIRA A SEIXAS JM BERGLUND S BOHM C JOHANSSON E HELLMAN S HOLMGREN S JONAND K SELLDEN B TARDEL S YAMDAGNI N FERRER A HONORE PF ALBIOL F DE K GALLAS E LI J SAWYER L STEPHENS R TURCOTTE M WHITE A HAKOPIAN H GRABSKY V MNATSAKANIAN E VARTAPETIAN A
Citation
E. Berger et al., A MEASUREMENT OF THE ENERGY-LOSS SPECTRUM OF 150 GEV MUONS IN IRON, Zeitschrift fur Physik. C, Particles and fields, 73(3), 1997, pp. 455-463
Citations number
20
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
73
Issue
3
Year of publication
1997
Pages
455 - 463
Database
ISI
SICI code
0170-9739(1997)73:3<455:AMOTES>2.0.ZU;2-G
Abstract
The energy loss spectrum of 150 GeV muons has been measured with a pro totype of the ATLAS hadron calorimeter in the H8 beam of the CERN SPS. The differential probability dP/d upsilon per radiation length of a f ractional energy loss upsilon = Delta E(mu)E(upsilon) has been measure d in the range upsilon = 0.01 divided by 0.95; it is compared with the theoretical predictions for energy losses due to bremsstrahlung and p roduction of electron-positron pairs or of energetic knock-on electron s. The integrated probability integral(0.01)(0.95)(dP/d upsilon)d upsi lon is (1.610 +/- 0.015(stat) +/- 0.105(syst)). 10(-3) in agreement wi th the theoretical predictions 1.556 . 10(-3) and 1.619 . 10(-3). Agre ement with theory is also found in two intervals of upsilon where prod uction of electron-positron pairs and knock-on electrons dominates. In the region of bremsstrahlung dominance (upsilon = 0.12 divided by 0.9 5) the measured integrated probability (1.160 +/- 0.040(stat) +/- 0.07 5(syst)). 10(-4) is in agreement with the theoretical value of 1.185 . 10(-4), obtained using the Petrukhin and Shestakov description of the bremsstrahlung process. The same result is about 3.6 standard deviati ons (defined as the quadratic sum of statistical and systematic errors ) lower than the theoretical prediction of 1.472 . 10(-4) obtained usi ng Tsai's description of bremsstrahlung.