Measurement of isolated-photon pair production in pp collisions at root s=7 TeV with the ATLAS detector
2013
Аутори
Aad, G.Borjanović, Iris
Božović-Jelisavčić, Ivanka
Ćirković, Predrag
Agatonović-Jovin, Tatjana
Krstić, Jelena
Mamužić, Judita
Popović, D. S.
Sijacki, Dj.
Simić, Lj.
Vranješ, Nenad
Vranješ Milosavljević, Marija
Živković, Lada
ATLAS Collaboration (ukupan broj autora: 2900)
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
The ATLAS experiment at the LHC has measured the production cross section of events with two isolated photons in the final state, in proton-proton collisions at root s = 7 TeV. The full data set collected in 2011, corresponding to an integrated luminosity of 4.9 fb(-1), is used. The amount of background, from hadronic jets and isolated electrons, is estimated with data-driven techniques and subtracted. The total cross section, for two isolated photons with transverse energies above 25 GeV and 22 GeV respectively, in the acceptance of the electromagnetic calorimeter (vertical bar eta vertical bar LT 1.37 and 1.52 LT vertical bar eta vertical bar 2.37) and with an angular separation Delta R GT 0.4, is 44.0(-4.2)(+3.2) pb. The differential cross sections as a function of the di-photon invariant mass, transverse momentum, azimuthal separation, and cosine of the polar angle of the largest transverse energy photon in the Collins-Soper di-photon rest frame are also measured. The results are c...ompared to the prediction of leading-order parton-shower and next-to-leading-order and next-to-next-to-leading-order parton-level generators.
Кључне речи:
Hadron-Hadron ScatteringИзвор:
Journal of High Energy Physics, 2013, 1Финансирање / пројекти:
- ANPCyT, At YerPhI, Armenia, ARC, Australia, BMWF, Austria, FWF, Austria, ANAS, Azerbaijan, SSTC, Belarus, CNPq, Brazil, FAPESP, Brazil, NSERC, Canada, NRC, Canada, CFI, Canada, CERN, CONICYT, Chile, CAS, China, MOST, China, NSFC, China, COLCIENCIAS, Colombia, MSMT CR, Czech Republic, MPO CR, Czech Republic, VSC CR, Czech Republic, DNRF, Denmark, DNSRC, Denmark, Lundbeck Foundation, Denmark, EPLANET, European Union, ERC, European Union, NSRF, European Union, IN2P3-CNRS, France, CEA-DSM/IRFU, France, GNSF, Georgia, BMBF, Germany, DFG, Germany, HGF, Germany, MPG, Germany, AvII Foundation, Germany, GSRT, Greece, NSRF, Greece, ISF, Israel, MINERVA, Israel, GIF, Israel, DIP, Israel, Benoziyo Center, Israel, INFN, Italy, MEXT, Japan, JSPS, Japan, CNRST, Morocco, FOM, Netherlands, NWO, Netherlands, BRF, Norway, RCN, Norway, MNiSW, Poland, GRICES, Portugal, FCT, Portugal, MERYS (MECTS), Romania, MES of Russia, Russian Federation, ROSATOM, Russian Federation, JINR, MSTD, Serbia, MSSR, Slovakia, ARRS, Slovenia, MVZT, Slovenia, DST/NRE, South Africa, MICINN, Spain, SRC, Sweden, Wallenberg Foundation, Sweden, SER, Switzerland, SNSF, Switzerland, Cantons of Bern and Geneva, Switzerland, NSC, Taiwan, TAEK, Turkey, STFC, United Kingdom, Royal Society, United Kingdom, Leverhulme Trust, United Kingdom, DOE, United States of America, NSF, United States of America, ICREA
DOI: 10.1007/JHEP01(2013)086
ISSN: 1029-8479
WoS: 000315583600005
Scopus: 2-s2.0-84873464675
Колекције
Институција/група
VinčaTY - JOUR AU - Aad, G. AU - Borjanović, Iris AU - Božović-Jelisavčić, Ivanka AU - Ćirković, Predrag AU - Agatonović-Jovin, Tatjana AU - Krstić, Jelena AU - Mamužić, Judita AU - Popović, D. S. AU - Sijacki, Dj. AU - Simić, Lj. AU - Vranješ, Nenad AU - Vranješ Milosavljević, Marija AU - Živković, Lada PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5350 AB - The ATLAS experiment at the LHC has measured the production cross section of events with two isolated photons in the final state, in proton-proton collisions at root s = 7 TeV. The full data set collected in 2011, corresponding to an integrated luminosity of 4.9 fb(-1), is used. The amount of background, from hadronic jets and isolated electrons, is estimated with data-driven techniques and subtracted. The total cross section, for two isolated photons with transverse energies above 25 GeV and 22 GeV respectively, in the acceptance of the electromagnetic calorimeter (vertical bar eta vertical bar LT 1.37 and 1.52 LT vertical bar eta vertical bar 2.37) and with an angular separation Delta R GT 0.4, is 44.0(-4.2)(+3.2) pb. The differential cross sections as a function of the di-photon invariant mass, transverse momentum, azimuthal separation, and cosine of the polar angle of the largest transverse energy photon in the Collins-Soper di-photon rest frame are also measured. The results are compared to the prediction of leading-order parton-shower and next-to-leading-order and next-to-next-to-leading-order parton-level generators. T2 - Journal of High Energy Physics T1 - Measurement of isolated-photon pair production in pp collisions at root s=7 TeV with the ATLAS detector IS - 1 DO - 10.1007/JHEP01(2013)086 ER -
@article{ author = "Aad, G. and Borjanović, Iris and Božović-Jelisavčić, Ivanka and Ćirković, Predrag and Agatonović-Jovin, Tatjana and Krstić, Jelena and Mamužić, Judita and Popović, D. S. and Sijacki, Dj. and Simić, Lj. and Vranješ, Nenad and Vranješ Milosavljević, Marija and Živković, Lada", year = "2013", abstract = "The ATLAS experiment at the LHC has measured the production cross section of events with two isolated photons in the final state, in proton-proton collisions at root s = 7 TeV. The full data set collected in 2011, corresponding to an integrated luminosity of 4.9 fb(-1), is used. The amount of background, from hadronic jets and isolated electrons, is estimated with data-driven techniques and subtracted. The total cross section, for two isolated photons with transverse energies above 25 GeV and 22 GeV respectively, in the acceptance of the electromagnetic calorimeter (vertical bar eta vertical bar LT 1.37 and 1.52 LT vertical bar eta vertical bar 2.37) and with an angular separation Delta R GT 0.4, is 44.0(-4.2)(+3.2) pb. The differential cross sections as a function of the di-photon invariant mass, transverse momentum, azimuthal separation, and cosine of the polar angle of the largest transverse energy photon in the Collins-Soper di-photon rest frame are also measured. The results are compared to the prediction of leading-order parton-shower and next-to-leading-order and next-to-next-to-leading-order parton-level generators.", journal = "Journal of High Energy Physics", title = "Measurement of isolated-photon pair production in pp collisions at root s=7 TeV with the ATLAS detector", number = "1", doi = "10.1007/JHEP01(2013)086" }
Aad, G., Borjanović, I., Božović-Jelisavčić, I., Ćirković, P., Agatonović-Jovin, T., Krstić, J., Mamužić, J., Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, N., Vranješ Milosavljević, M.,& Živković, L.. (2013). Measurement of isolated-photon pair production in pp collisions at root s=7 TeV with the ATLAS detector. in Journal of High Energy Physics(1). https://doi.org/10.1007/JHEP01(2013)086
Aad G, Borjanović I, Božović-Jelisavčić I, Ćirković P, Agatonović-Jovin T, Krstić J, Mamužić J, Popović DS, Sijacki D, Simić L, Vranješ N, Vranješ Milosavljević M, Živković L. Measurement of isolated-photon pair production in pp collisions at root s=7 TeV with the ATLAS detector. in Journal of High Energy Physics. 2013;(1). doi:10.1007/JHEP01(2013)086 .
Aad, G., Borjanović, Iris, Božović-Jelisavčić, Ivanka, Ćirković, Predrag, Agatonović-Jovin, Tatjana, Krstić, Jelena, Mamužić, Judita, Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, Nenad, Vranješ Milosavljević, Marija, Živković, Lada, "Measurement of isolated-photon pair production in pp collisions at root s=7 TeV with the ATLAS detector" in Journal of High Energy Physics, no. 1 (2013), https://doi.org/10.1007/JHEP01(2013)086 . .