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Configuration and p...
Configuration and performance of the ATLAS b-jet triggers in Run 2
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- Andrean, Stefio Y. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Backman, Filip (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Barranco Navarro, Laura (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Bohm, Christian (author)
- KTH,Stockholms universitet,Fysikum,Partikel- och astropartikelfysik
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- Clement, Christophe (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Hellman, Sten (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Lou, Xuanhong (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Milstead, David A. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Moa, Torbjörn (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Nelson, Michael E. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Pasuwan, Patrawan (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Pereira Sanchez, Laura (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Shaikh, Nabila W. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Silverstein, Samuel B. (author)
- Stockholms universitet,Fysikum
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- Sjölin, Jörgen (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Strandberg, Sara (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Strübig, Antonia (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Valdés Santurio, Eduardo (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Wallängen, Veronica (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Aad, G. (author)
- Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France.;Univ Oregon, Inst Fundamental Sci, Eugene, OR 97403 USA.
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- Jensen, Bengt (author)
- KTH,Partikel- och astropartikelfysik
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- Ripellino, Giulia (author)
- KTH,Partikel- och astropartikelfysik
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- Shope, David R. (author)
- KTH,Partikel- och astropartikelfysik
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- Strandberg, Jonas (author)
- KTH,Partikel- och astropartikelfysik
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- Zwalinski, L. (author)
- CERN, Geneva, Switzerland.
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- Asimakopoulou, Eleni M. (author)
- Uppsala universitet,Högenergifysik
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- Bergeås Kuutmann, Elin, 1980- (author)
- Uppsala universitet,Högenergifysik
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- Bokan, Petar (author)
- Uppsala universitet,Högenergifysik,Georg August Univ Gottingen, Phys Inst 2, Gottingen, Germany
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- Brenner, Richard (author)
- Uppsala universitet,Högenergifysik
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- Ekelöf, Tord (author)
- Uppsala universitet,FREIA
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- Ellajosyula, Venugopal (author)
- Uppsala universitet,Högenergifysik
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- Ellert, Mattias (author)
- Uppsala universitet,Högenergifysik
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- Ferrari, Arnaud, 1973- (author)
- Uppsala universitet,Högenergifysik
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- Gonzalez Suarez, Rebeca (author)
- Uppsala universitet,Högenergifysik
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- Isacson, Max F. (author)
- Uppsala universitet,Högenergifysik
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- Mårtensson, Mikael U. F. (author)
- Uppsala universitet,Högenergifysik
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- Mathisen, Thomas (author)
- Uppsala universitet,Högenergifysik
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(creator_code:org_t)
- 2021-12-09
- 2021
- English.
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In: European Physical Journal C. - : Springer Science and Business Media LLC. - 1434-6044 .- 1434-6052. ; 81:12
- Related links:
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https://doi.org/10.1...
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https://link.springe...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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Abstract
Subject headings
Close
- Several improvements to the ATLAS triggers used to identify jets containing b-hadrons (b-jets) were implemented for data-taking during Run 2 of the Large Hadron Collider from 2016 to 2018. These changes include reconfiguring the b-jet trigger software to improve primary-vertex finding and allow more stable running in conditions with high pile-up, and the implementation of the functionality needed to run sophisticated taggers used by the offline reconstruction in an online environment. These improvements yielded an order of magnitude better light-flavour jet rejection for the same b-jet identification efficiency compared to the performance in Run 1 (2011-2012). The efficiency to identify b-jets in the trigger, and the conditional efficiency for b-jets that satisfy offline b-tagging requirements to pass the trigger are also measured. Correction factors are derived to calibrate the b-tagging efficiency in simulation to match that observed in data. The associated systematic uncertainties are substantially smaller than in previous measurements. In addition, b-jet triggers were operated for the first time during heavy-ion data-taking, using dedicated triggers that were developed to identify semileptonic b-hadron decays by selecting events with geometrically overlapping muons and jets.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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Andrean, Stefio ...
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Backman, Filip
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Barranco Navarro ...
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Bohm, Christian
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Clement, Christo ...
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Hellman, Sten
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Lou, Xuanhong
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Milstead, David ...
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Moa, Torbjörn
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Nelson, Michael ...
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Pasuwan, Patrawa ...
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Pereira Sanchez, ...
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Shaikh, Nabila W ...
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Silverstein, Sam ...
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Sjölin, Jörgen
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Strandberg, Sara
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Strübig, Antonia
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Valdés Santurio, ...
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Wallängen, Veron ...
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Aad, G.
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Jensen, Bengt
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Ripellino, Giuli ...
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Shope, David R.
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Strandberg, Jona ...
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Zwalinski, L.
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Asimakopoulou, E ...
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Bergeås Kuutmann ...
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Bokan, Petar
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Brenner, Richard
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Ekelöf, Tord
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Ellajosyula, Ven ...
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Ellert, Mattias
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Ferrari, Arnaud, ...
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Gonzalez Suarez, ...
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Isacson, Max F.
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Mårtensson, Mika ...
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Mathisen, Thomas
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
- Articles in the publication
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European Physica ...
- By the university
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Stockholm University
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Royal Institute of Technology
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Uppsala University