Precision luminosity measurement in proton–proton collisions at √s=13TeV in 2015 and 2016 at CMS

CMS Collaboration

doi:10.1140/epjc/s10052-021-09538-2

Precision luminosity measurement in proton–proton collisions at √s=13TeV in 2015 and 2016 at CMS

CMS Collaboration

European Organization for Nuclear Research
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Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

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Résumé

The measurement of the luminosity recorded by the CMS detector installed at LHC interaction point 5, using proton–proton collisions at s=13TeV in 2015 and 2016, is reported. The absolute luminosity scale is measured for individual bunch crossings using beam-separation scans (the van der Meer method), with a relative precision of 1.3 and 1.0% in 2015 and 2016, respectively. The dominant sources of uncertainty are related to residual differences between the measured beam positions and the ones provided by the operational settings of the LHC magnets, the factorizability of the proton bunch spatial density functions in the coordinates transverse to the beam direction, and the modeling of the effect of electromagnetic interactions among protons in the colliding bunches. When applying the van der Meer calibration to the entire run periods, the integrated luminosities when CMS was fully operational are 2.27 and 36.3 fb-1 in 2015 and 2016, with a relative precision of 1.6 and 1.2%, respectively. These are among the most precise luminosity measurements at bunched-beam hadron colliders.

langue originale	Anglais
Numéro d'article	800
journal	European Physical Journal C
Volume	81
Numéro de publication	9
Les DOIs	https://doi.org/10.1140/epjc/s10052-021-09538-2
état	Publié - 1 sept. 2021

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10.1140/epjc/s10052-021-09538-2

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@article{35a1c55057b841f8b60f56ec6f8eba04,

title = "Precision luminosity measurement in proton–proton collisions at √s=13TeV in 2015 and 2016 at CMS",

abstract = "The measurement of the luminosity recorded by the CMS detector installed at LHC interaction point 5, using proton–proton collisions at s=13TeV in 2015 and 2016, is reported. The absolute luminosity scale is measured for individual bunch crossings using beam-separation scans (the van der Meer method), with a relative precision of 1.3 and 1.0\% in 2015 and 2016, respectively. The dominant sources of uncertainty are related to residual differences between the measured beam positions and the ones provided by the operational settings of the LHC magnets, the factorizability of the proton bunch spatial density functions in the coordinates transverse to the beam direction, and the modeling of the effect of electromagnetic interactions among protons in the colliding bunches. When applying the van der Meer calibration to the entire run periods, the integrated luminosities when CMS was fully operational are 2.27 and 36.3 fb-1 in 2015 and 2016, with a relative precision of 1.6 and 1.2\%, respectively. These are among the most precise luminosity measurements at bunched-beam hadron colliders.",

author = "\{CMS Collaboration\} and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and Andrejkovic, \{J. W.\} and T. Bergauer and S. Chatterjee and M. Dragicevic and Valle, \{A. Escalante Del\} and R. Fr{\"u}hwirth and M. Jeitler and N. Krammer and L. Lechner and D. Liko and I. Mikulec and Pitters, \{F. M.\} and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and S. Templ and W. Waltenberger and Wulz, \{C. E.\} and V. Chekhovsky and A. Litomin and V. Makarenko and Darwish, \{M. R.\} and \{De Wolf\}, \{E. A.\} and X. Janssen and T. Kello and A. Lelek and Sfar, \{H. Rejeb\} and \{Van Mechelen\}, P. and \{Van Putte\}, S. and \{Van Remortel\}, N. and F. Blekman and Bols, \{E. S.\} and J. D{\textquoteright}Hondt and \{De Clercq\}, J. and M. Delcourt and S. Lowette and F. Beaudette and O. Davignon and \{de Cassagnac\}, \{R. Granier\} and M. Nguyen and C. Ochando and P. Paganini and R. Salerno and A. Zabi and A. Zghiche and A. Cappati and \{De Wit\}, A.",

note = "Publisher Copyright: {\textcopyright} 2021, The Author(s).",

year = "2021",

month = sep,

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doi = "10.1140/epjc/s10052-021-09538-2",

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AU - CMS Collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Andrejkovic, J. W.

AU - Bergauer, T.

AU - Chatterjee, S.

AU - Dragicevic, M.

AU - Valle, A. Escalante Del

AU - Frühwirth, R.

AU - Jeitler, M.

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AU - Lechner, L.

AU - Liko, D.

AU - Mikulec, I.

AU - Pitters, F. M.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Templ, S.

AU - Waltenberger, W.

AU - Wulz, C. E.

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AU - Litomin, A.

AU - Makarenko, V.

AU - Darwish, M. R.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Kello, T.

AU - Lelek, A.

AU - Sfar, H. Rejeb

AU - Van Mechelen, P.

AU - Van Putte, S.

AU - Van Remortel, N.

AU - Blekman, F.

AU - Bols, E. S.

AU - D’Hondt, J.

AU - De Clercq, J.

AU - Delcourt, M.

AU - Lowette, S.

AU - Beaudette, F.

AU - Davignon, O.

AU - de Cassagnac, R. Granier

AU - Nguyen, M.

AU - Ochando, C.

AU - Paganini, P.

AU - Salerno, R.

AU - Zabi, A.

AU - Zghiche, A.

AU - Cappati, A.

AU - De Wit, A.

PY - 2021/9/1

Y1 - 2021/9/1

N2 - The measurement of the luminosity recorded by the CMS detector installed at LHC interaction point 5, using proton–proton collisions at s=13TeV in 2015 and 2016, is reported. The absolute luminosity scale is measured for individual bunch crossings using beam-separation scans (the van der Meer method), with a relative precision of 1.3 and 1.0% in 2015 and 2016, respectively. The dominant sources of uncertainty are related to residual differences between the measured beam positions and the ones provided by the operational settings of the LHC magnets, the factorizability of the proton bunch spatial density functions in the coordinates transverse to the beam direction, and the modeling of the effect of electromagnetic interactions among protons in the colliding bunches. When applying the van der Meer calibration to the entire run periods, the integrated luminosities when CMS was fully operational are 2.27 and 36.3 fb-1 in 2015 and 2016, with a relative precision of 1.6 and 1.2%, respectively. These are among the most precise luminosity measurements at bunched-beam hadron colliders.

AB - The measurement of the luminosity recorded by the CMS detector installed at LHC interaction point 5, using proton–proton collisions at s=13TeV in 2015 and 2016, is reported. The absolute luminosity scale is measured for individual bunch crossings using beam-separation scans (the van der Meer method), with a relative precision of 1.3 and 1.0% in 2015 and 2016, respectively. The dominant sources of uncertainty are related to residual differences between the measured beam positions and the ones provided by the operational settings of the LHC magnets, the factorizability of the proton bunch spatial density functions in the coordinates transverse to the beam direction, and the modeling of the effect of electromagnetic interactions among protons in the colliding bunches. When applying the van der Meer calibration to the entire run periods, the integrated luminosities when CMS was fully operational are 2.27 and 36.3 fb-1 in 2015 and 2016, with a relative precision of 1.6 and 1.2%, respectively. These are among the most precise luminosity measurements at bunched-beam hadron colliders.

U2 - 10.1140/epjc/s10052-021-09538-2

DO - 10.1140/epjc/s10052-021-09538-2

M3 - Article

AN - SCOPUS:85114932161

SN - 1434-6044

VL - 81

JO - European Physical Journal C

JF - European Physical Journal C

IS - 9

M1 - 800

ER -

Precision luminosity measurement in proton–proton collisions at √s=13TeV in 2015 and 2016 at CMS

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