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SUMMARY:ATLAS Forward Proton detector – status and future plans
DTSTART;VALUE=DATE-TIME:20170228T082000Z
DTEND;VALUE=DATE-TIME:20170228T084000Z
DTSTAMP;VALUE=DATE-TIME:20260711T232518Z
UID:indico-contribution-1633@indico.inp.nsk.su
DESCRIPTION:Speakers: Tomas Sykora (Institute of Particle and Nuclear Phys
 ics\, Faculty of Mathematics &amp\; Physics\, Charles University)\nIn 2016
  the ATLAS collaboration successfully installed a part of the ATLAS Forwar
 d Proton (AFP) detector to measure diffractive protons leaving under very 
 small angles (hundreds of micro radians) the ATLAS proton-proton interacti
 on point. The AFP aims to tag and measure forward protons scattered in sin
 gle diffraction or hard central diffraction\, where two protons are emitte
 d and a central system is created. In addition\, the AFP has a potential t
 o measure two-photon exchange processes\, and be sensitive to eventual ano
 malous quartic couplings of Vector Bosons: $\\gamma\\gamma W^+W^-$\,  $\\g
 amma\\gamma ZZ$\,  and $\\gamma\\gamma\\gamma\\gamma$. Such measurements a
 t high luminosities will be possible only due the combination of high reso
 lution tracking detectors and ultra-high precision time-of-flight (ToF) de
 tectors at both sides of the ATLAS detector. In its first\, current\, phas
 e the AFP detector consists of one arm with two semi-edgeless 3D Silicon p
 ixel detectors\, each placed in a horizontal Roman Pot. Both Pots are plac
 ed at one ATLAS side\, 205 and 217 meters away from the ATLAS interaction 
 point\, very close (2-3 mm during data taking) to the LHC beams. The detec
 tor system construction\, its installation in the LHC tunnel and commissio
 ning (including full integration of the AFP into the ATLAS detector contro
 l system and trigger and data acquisition) will be presented together with
  the detector performance plots based on the data taking during the standa
 rd LHC running. The second phase of the AFP realization\, planned to the b
 eginning of 2017 and including the installation of the AFP second arm toge
 ther with ToF Quartz-Cherenkov subdetectors (housed in both farther Roman 
 Pots) will be described in the second part of the talk.\n\nhttps://indico.
 inp.nsk.su/event/8/contributions/1633/
LOCATION:
URL:https://indico.inp.nsk.su/event/8/contributions/1633/
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