⚓⌘ ATLAS_8_GAMMA_MET /ATLAS_2016_I1448301/d04-x01-y01 :

Analysis Pool:ATLAS_8_HMDY_MU

Exclusion from this pool alone: 0.00%

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List of all the analyses which were tried:

WWW production at 8 TeV (ATLAS_2016_I1492320) in pool ATLAS_8_3L

Inspire | arXiv:1610.05088 [hep-ex]

This paper reports a search for triboson $W^\pm W^\pm W^\mp$ production in two decay channels ($W^\pm W^\pm W^\mp \to \ell^\pm\nu \ell^\pm\nu \ell^\mp\nu$) and ($W^\pm W^\pm W^\mp \to \ell^\pm\nu \ell^\pm\nu jj$ with $\ell = e,\mu$) in proton-proton collision data corresponding to an integrated luminosity of 20.3 fb${}^{-1}$ at a centre-of-mass energy of 8 TeV with the ATLAS detector at the Large Hadron Collider. Events with exactly three charged leptons, or two leptons with the same electric charge in association with two jets, are selected. The total number of events observed in data is consistent with the Standard Model (SM) predictions. The observed 95 % confidence level upper limit on the SM $W^\pm W^\pm W^\mp$ production cross section is found to be 730 fb with an expected limit of 560 fb in the absence of SM $W^\pm W^\pm W^\mp$ production. Limits are also set on $WWWW$ anomalous quartic gauge couplings. Default will make both plots. Use options 2L2J or 3J to make just one.

H(125) -> 4l at 8 TeV (ATLAS_2014_I1310835) in pool ATLAS_8_4L

Inspire | Phys.Lett. B738 (2014) 234-253 | arXiv:1408.3226 [hep-ex] | doi:10.1016/j.physletb.2014.09.054

Measurements of fiducial and differential cross sections of Higgs boson production in the $H\to ZZ^\ast\to 4\ell$ decay channel are presented. The cross sections are determined within a fiducial phase space and corrected for detection efficiency and resolution effects. They are based on 20.3 fb$^{-1}$ of $pp$ collision data, produced at $\sqrt{s}=8$ TeV centre-of-mass energy at the LHC and recorded by the ATLAS detector. The differential measurements are performed in bins of transverse momentum and rapidity of the four-lepton system, the invariant mass of the subleading lepton pair and the decay angle of the leading lepton pair with respect to the beam line in the four-lepton rest frame, as well as the number of jets and the transverse momentum of the leading jet. The measured cross sections are compared to selected theoretical calculations of the Standard Model expectations. No significant deviation from any of the tested predictions is found.

$Z$ $p_T$ and $Z$ $\phi^*$ (ATLAS_2015_I1408516) in pool ATLAS_8_EEJET

Inspire | arXiv:1512.02192 [hep-ex] | submitted to EPJC

Distributions of transverse momentum $p_\text{T}^{\ell\ell}$ and the angular variable $\phi^\ast_\eta$ of Drell-Yan lepton pairs are measured in $20.3\,\text{fb}^{-1}$ of proton-proton collisions at $\sqrt{s}=8$\,TeV with the ATLAS detector at the LHC. Measurements in electron-pair and muon-pair final states are corrected for detector effects. Compared to previous measurements in proto--proton collisions at i$\sqrt{s}=7$\,TeV, these new measurements benefit from a larger data sample and improved control of systematic uncertainties. Measurements are performed in bins of lepton-pair mass above, around and below the $Z$-boson mass peak. Specify the lepton channel (default is Z->ee) by using the LMODE variable. Only individual channels are available as particle-level measurements.

Higgs diphoton events at 8 TeV in ATLAS (ATLAS_2014_I1306615) in pool ATLAS_8_GAMMA

Inspire | arXiv:1407.4222 | JHEP 09 (2014) 112

Measurements of fiducial and differential cross sections are presented for Higgs boson production in proton-proton collisions at a centre-of-mass energy of 8TeV. The analysis is performed in the Higgs diphoton decay channel using 20.3/fb of data recorded by the ATLAS experiment at the CERN Large Hadron Collider. The signal yields are corrected for the effects of detector inefficiency and resolution. Differential cross sections are also presented, as a function of variables related to the diphoton kinematics and the jet activity produced in the Higgs boson events. The observed spectra are statistically limited but broadly in line with the theoretical expectations. Note on reinterpretation: Since the background is subtracted from a fit, any BSM signal would presumably also have beed subtracted. Therefore should not be used to constrain BSM signals unless they comes from a genuine excess of SM Higgs->gammagamma.

Inclusive prompt photons at 8 TeV (ATLAS_2016_I1457605) in pool ATLAS_8_GAMMA

Inspire | arXiv:1605.03495 [hep-ex]

A measurement of the cross section for the inclusive production of isolated prompt photons in proton-proton collisions at a centre-of-mass energy of $\sqrt{s} = 8$ TeV is presented. The measurement covers the pseudorapidity ranges $|\eta^\gamma| < 1.37$ $1.56 < |\eta^\gamma| < 2.37$ in the transverse energy range $25 < E^\gamma_\text{T} < 1500$ GeV. The results are based on an integrated luminosity of 20.2 fb${}^{-1}$, recorded by the ATLAS detector at the LHC. Photon candidates are identified by combining information from the calorimeters and the inner tracker. The background is subtracted using a data-driven technique, based on the observed calorimeter shower-shape variables and the deposition of hadronic energy in a narrow cone around the photon candidate.

Inclusive diphoton cross-sections at 8 TeV (ATLAS_2017_I1591327) in pool ATLAS_8_GAMMA

Inspire | arXiv:1704.03839 [hep-ex] | submitted to PRD

A measurement of the production cross section for two isolated photons in proton--proton collisions at a center-of-mass energy of $\sqrt{s}=8$ TeV is presented. The results are based on an integrated luminosity of 20.2 fb$^{-1}$ recorded by the ATLAS detector at the Large Hadron Collider. The measurement considers photons with pseudorapidities satisfying $|\eta^\gamma| < 1.37$ or $1.56 < |\eta^\gamma| < 2.37$ and transverse energies of respectively $E^\gamma_\text{T,1}>40$ GeV and $E^\gamma_\text{T,2}> 30$ GeV for the two leading photons ordered in transverse energy produced in the interaction. The background due to hadronic jets and electrons is subtracted using data-driven techniques. The fiducial cross sections are corrected for detector effects and measured differentially as a function of six kinematic observables. The measured cross section integrated within the fiducial volume is $16.8\pm0.8$ pb. The data are compared to fixed-order QCD calculations at next-to-leading-order and next-to-next-to-leading-order accuracy as well as next-to-leading-order computations including resummation of initial-state gluon radiation at next-to-next-to-leading logarithm or matched to a parton shower, with relative uncertainties varying from 5% to 20%.

$Z \gamma (\gamma)$ cross sections at 8 TeV (ATLAS_2016_I1448301) in pool ATLAS_8_GAMMA_MET

Inspire | Phys.Rev. D93 (2016) no.11, 112002 | doi:10.1103/PhysRevD.93.112002 | arXiv:1604.05232 [hep-ex]

The production of $Z$ bosons with one or two isolated high-energy photons is studied using pp collisions at $\sqrt{s}=8$ TeV. The analyses use a data sample with an integrated luminosity of 20.3 fb${}^{-1}$ collected by the ATLAS detector during the 2012 LHC data taking. The $Z\gamma$ and $Z\gamma\gamma$ production cross sections are measured with leptonic ($e^+e^-$, $\mu^+\mu^-$, $\nu\bar{\nu}$) decays of the Z boson, in extended fiducial regions defined in terms of the lepton and photon acceptance. They are then compared to cross-section predictions from the Standard Model, where the sources of the photons are radiation off initial-state quarks and radiative Z-boson decay to charged leptons, and from fragmentation of final-state quarks and gluons into photons. The yields of events with photon transverse energy $E_\text{T}>250$ GeV from $\ell^+\ell^-\gamma$ events and with $E_\text{T}>400$ GeV from $\nu\bar{\nu}\gamma$ events are used to search for anomalous triple gauge-boson couplings $ZZ\gamma$ and $Z\gamma\gamma$. The yields of events with diphoton invariant mass $m_{\gamma\gamma}>200$ GeV from $\ell^+\ell^-\gamma\gamma$ events and with $m_{\gamma\gamma}>300$ GeV from $\nu\bar{\nu}\gamma\gamma$ events are used to search for anomalous quartic gauge-boson couplings $ZZ\gamma\gamma$ and $Z\gamma\gamma\gamma$. No deviations from Standard Model predictions are observed and limits are placed on parameters used to describe anomalous triple and quartic gauge-boson couplings. The lepton channel can be specified by using the relevant LMODE (EL, MU, NU, LL). The default plugin will fill all of them with any events passing the cuts. NU will do only the MET channels, EL & MU will do only the electron or muon and will populate the combined plots assuming charged lepton universality. LL with do on the electron and muon but will populate the combined plots with the average of the two.

High-mass Drell-Yan at 8 TeV (ATLAS_2016_I1467454) in pool ATLAS_8_HMDY_EL

Inspire | JHEP 1608 (2016) 009 | doi:10.1007/JHEP08(2016)009 | arXiv:1606.01736 [hep-ex]

This paper presents a measurement of the double-differential cross section for the Drell-Yan $Z/\gamma^\ast \rightarrow \ell^+\ell^-$ and photon-induced $\gamma\gamma \rightarrow \ell^+\ell^-$ processes where $\ell$ is an electron or muon. The measurement is performed for invariant masses of the lepton pairs, $m_{\ell\ell}$, between 116 GeV and 1500 GeV using a sample of 20.3 fb$^{-1}$ of pp collisions data at centre-of-mass energy of $\sqrt{s} = 8$ TeV collected by the ATLAS detector at the LHC in 2012. The data are presented double differentially in invariant mass and absolute dilepton rapidity as well as in invariant mass and absolute pseudorapidity separation of the lepton pair. The single-differential cross section as a function of $m_{\ell\ell}$ is also reported. The electron and muon channel measurements are combined and a total experimental precision of better than 1\% is achieved at low $m_{\ell\ell}$. A comparison to next-to-next-to-leading order perturbative QCD predictions using several recent parton distribution functions and including next-to-leading order electroweak effects indicates the potential of the data to constrain parton distribution functions. In particular, a large impact of the data on the photon PDF is demonstrated. Decay channel (e or mu) is selected by LMODE=EL,MU

High-mass Drell-Yan at 8 TeV (ATLAS_2016_I1467454) in pool ATLAS_8_HMDY_MU

Inspire | JHEP 1608 (2016) 009 | doi:10.1007/JHEP08(2016)009 | arXiv:1606.01736 [hep-ex]

This paper presents a measurement of the double-differential cross section for the Drell-Yan $Z/\gamma^\ast \rightarrow \ell^+\ell^-$ and photon-induced $\gamma\gamma \rightarrow \ell^+\ell^-$ processes where $\ell$ is an electron or muon. The measurement is performed for invariant masses of the lepton pairs, $m_{\ell\ell}$, between 116 GeV and 1500 GeV using a sample of 20.3 fb$^{-1}$ of pp collisions data at centre-of-mass energy of $\sqrt{s} = 8$ TeV collected by the ATLAS detector at the LHC in 2012. The data are presented double differentially in invariant mass and absolute dilepton rapidity as well as in invariant mass and absolute pseudorapidity separation of the lepton pair. The single-differential cross section as a function of $m_{\ell\ell}$ is also reported. The electron and muon channel measurements are combined and a total experimental precision of better than 1\% is achieved at low $m_{\ell\ell}$. A comparison to next-to-next-to-leading order perturbative QCD predictions using several recent parton distribution functions and including next-to-leading order electroweak effects indicates the potential of the data to constrain parton distribution functions. In particular, a large impact of the data on the photon PDF is demonstrated. Decay channel (e or mu) is selected by LMODE=EL,MU

$Z \gamma (\gamma)$ cross sections at 8 TeV (ATLAS_2016_I1448301) in pool ATLAS_8_MM_GAMMA

Inspire | Phys.Rev. D93 (2016) no.11, 112002 | doi:10.1103/PhysRevD.93.112002 | arXiv:1604.05232 [hep-ex]

The production of $Z$ bosons with one or two isolated high-energy photons is studied using pp collisions at $\sqrt{s}=8$ TeV. The analyses use a data sample with an integrated luminosity of 20.3 fb${}^{-1}$ collected by the ATLAS detector during the 2012 LHC data taking. The $Z\gamma$ and $Z\gamma\gamma$ production cross sections are measured with leptonic ($e^+e^-$, $\mu^+\mu^-$, $\nu\bar{\nu}$) decays of the Z boson, in extended fiducial regions defined in terms of the lepton and photon acceptance. They are then compared to cross-section predictions from the Standard Model, where the sources of the photons are radiation off initial-state quarks and radiative Z-boson decay to charged leptons, and from fragmentation of final-state quarks and gluons into photons. The yields of events with photon transverse energy $E_\text{T}>250$ GeV from $\ell^+\ell^-\gamma$ events and with $E_\text{T}>400$ GeV from $\nu\bar{\nu}\gamma$ events are used to search for anomalous triple gauge-boson couplings $ZZ\gamma$ and $Z\gamma\gamma$. The yields of events with diphoton invariant mass $m_{\gamma\gamma}>200$ GeV from $\ell^+\ell^-\gamma\gamma$ events and with $m_{\gamma\gamma}>300$ GeV from $\nu\bar{\nu}\gamma\gamma$ events are used to search for anomalous quartic gauge-boson couplings $ZZ\gamma\gamma$ and $Z\gamma\gamma\gamma$. No deviations from Standard Model predictions are observed and limits are placed on parameters used to describe anomalous triple and quartic gauge-boson couplings. The lepton channel can be specified by using the relevant LMODE (EL, MU, NU, LL). The default plugin will fill all of them with any events passing the cuts. NU will do only the MET channels, EL & MU will do only the electron or muon and will populate the combined plots assuming charged lepton universality. LL with do on the electron and muon but will populate the combined plots with the average of the two.

$Z$ $p_T$ and $Z$ $\phi^*$ (ATLAS_2015_I1408516) in pool ATLAS_8_MMJET

Inspire | arXiv:1512.02192 [hep-ex] | submitted to EPJC

Distributions of transverse momentum $p_\text{T}^{\ell\ell}$ and the angular variable $\phi^\ast_\eta$ of Drell-Yan lepton pairs are measured in $20.3\,\text{fb}^{-1}$ of proton-proton collisions at $\sqrt{s}=8$\,TeV with the ATLAS detector at the LHC. Measurements in electron-pair and muon-pair final states are corrected for detector effects. Compared to previous measurements in proto--proton collisions at i$\sqrt{s}=7$\,TeV, these new measurements benefit from a larger data sample and improved control of systematic uncertainties. Measurements are performed in bins of lepton-pair mass above, around and below the $Z$-boson mass peak. Specify the lepton channel (default is Z->ee) by using the LMODE variable. Only individual channels are available as particle-level measurements.

WWW production at 8 TeV (ATLAS_2016_I1492320) in pool ATLAS_8_WW

Inspire | arXiv:1610.05088 [hep-ex]

This paper reports a search for triboson $W^\pm W^\pm W^\mp$ production in two decay channels ($W^\pm W^\pm W^\mp \to \ell^\pm\nu \ell^\pm\nu \ell^\mp\nu$) and ($W^\pm W^\pm W^\mp \to \ell^\pm\nu \ell^\pm\nu jj$ with $\ell = e,\mu$) in proton-proton collision data corresponding to an integrated luminosity of 20.3 fb${}^{-1}$ at a centre-of-mass energy of 8 TeV with the ATLAS detector at the Large Hadron Collider. Events with exactly three charged leptons, or two leptons with the same electric charge in association with two jets, are selected. The total number of events observed in data is consistent with the Standard Model (SM) predictions. The observed 95 % confidence level upper limit on the SM $W^\pm W^\pm W^\mp$ production cross section is found to be 730 fb with an expected limit of 560 fb in the absence of SM $W^\pm W^\pm W^\mp$ production. Limits are also set on $WWWW$ anomalous quartic gauge couplings. Default will make both plots. Use options 2L2J or 3J to make just one.

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