Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Studies of triggering and exotic particle searches at ATLAS, and a search for trapped monopoles
Stockholms universitet, Naturvetenskapliga fakulteten, Fysikum. (Elementarpartikelfysik)
2013 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
Abstract [en]

The ATLAS detector at the LHC operated through 2011 and 2012 with 7 and 8 TeV centre-of-mass energy of its colliding proton bunches, respectively. One if its main objectives is to search for physics beyond the Standard Model. This thesis presents a study of a data-driven background method designed for long-lived heavy particles searches, where the signatures are allowed by for example R-parity violating Supersymmetry. Several studies of the perfor- mance of ATLAS trigger system have also been carried out. A contribution to a non-ATLAS search for primordial trapped magnetic monopoles was also undertaken. Data-taking and calibration of a SQUID magnetometer used when searching for magnetic monopoles in volcanic polar rocks were carried out. 

sted, utgiver, år, opplag, sider
Stockholm: Department of Physics, Stockholm University , 2013. , s. 158
Emneord [en]
Magnetic monopoles, ATLAS, SQUID, trigger, exotic particles, heavy long-lived particles
HSV kategori
Forskningsprogram
högenergifysik
Identifikatorer
URN: urn:nbn:se:su:diva-97789OAI: oai:DiVA.org:su-97789DiVA, id: diva2:680160
Presentation
2014-01-13, A4:1003, Roslagstullsbacken 21, Stockholm, 13:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2013-12-19 Laget: 2013-12-17 Sist oppdatert: 2014-01-07bibliografisk kontrollert
Delarbeid
1. Search for Magnetic Monopoles in Polar Volcanic Rocks
Åpne denne publikasjonen i ny fane eller vindu >>Search for Magnetic Monopoles in Polar Volcanic Rocks
Vise andre…
2013 (engelsk)Inngår i: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 110, nr 12, artikkel-id 121803Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

For a broad range of values of magnetic monopole mass and charge, the abundance of monopoles trapped inside Earth would be expected to be enhanced in the mantle beneath the geomagnetic poles. A search for magnetic monopoles was conducted using the signature of an induced persistent current following the passage of igneous rock samples through a SQUID-based magnetometer. A total of 24.6 kg of rocks from various selected sites, among which 23.4 kg are mantle-derived rocks from the Arctic and Antarctic areas, was analyzed. No monopoles were found, and a 90% confidence level upper limit of 9.8 x 10(-5)/g is set on the monopole density in the search samples.

HSV kategori
Forskningsprogram
fysik
Identifikatorer
urn:nbn:se:su:diva-89798 (URN)10.1103/PhysRevLett.110.121803 (DOI)000316682600002 ()
Merknad

AuthorCount:9;

Tilgjengelig fra: 2013-05-10 Laget: 2013-05-08 Sist oppdatert: 2017-12-06bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Søk i DiVA

Av forfatter/redaktør
Bendtz, Katarina
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric

urn-nbn
Totalt: 163 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf