Very Forward Calorimetry at the LHC--Recent results from ATLAS

Journal Article · Fri Jul 15 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3601384· OSTI ID:21608264

White, Sebastian N ^[1]

---

1. Physics Dept., Brookhaven National Lab, Upton, NY 11973 (United States)

We present first results from the ATLAS Zero Degree Calorimeters (ZDC) based on 7 TeV pp collision data recorded in 2010. The ZDC coverage of {+-}{approx}350 {mu}rad about the forward direction makes possible the measurement of neutral particles (primarily {pi}{sup 0}'s and neutrons) over the kinematic region x{sub F} > or approx. 0.1 and out to p{sub T} < or approx. 1.2 GeV/c at large x{sub F}. The ATLAS ZDC is unique in that it provides a complete image of both electromagnetic and hadronic showers. This is illustrated with the reconstruction of {pi}{sup 0}'s with energies of 0.7-3.5 TeV. We also discuss the waveform reconstruction algorithm which has allowed good time-of-flight resolution on leading neutrons emerging from the collisions despite the sparse (40 MHz) sampling of the calorimeter signals used.

• OSTI ID: 21608264
• Journal Information: AIP Conference Proceedings, Vol. 1350, Issue 1; Conference: DIFFRACTION 2010: International workshop on diffraction in high energy physics, Otranto (Italy), 10-15 Sep 2010; Other Information: DOI: 10.1063/1.3601384; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CERN LHC
GEV RANGE
GLUONS
MHZ RANGE
MULTIPARTICLE SPECTROMETERS
NEUTRONS
PARTICLE IDENTIFICATION
PARTICLE KINEMATICS
PIONS NEUTRAL
PROTON-PROTON INTERACTIONS
RESOLUTION
SHOWER COUNTERS
TEV RANGE
TIME-OF-FLIGHT METHOD
WAVE FORMS
ACCELERATORS
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FREQUENCY RANGE
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MEASURING INSTRUMENTS
MESONS
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
PARTICLE INTERACTIONS
PIONS
PROTON-NUCLEON INTERACTIONS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
SPECTROMETERS
STORAGE RINGS
SYNCHROTRONS