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Gauld R, Gehrmann–De Ridder A, Glover EWN, Huss A, Rodriguez Garcia A, Stagnitto G. NNLO QCD predictions for Z-boson production in association with a charm jet within the LHCb fiducial region. Eur Phys J C Part Fields 2023; 83:336. [PMID: 37128509 PMCID: PMC10140110 DOI: 10.1140/epjc/s10052-023-11530-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
We compute next-to-next-to-leading order (NNLO) QCD corrections to neutral vector boson production in association with a charm jet at the LHC. This process is studied in the forward kinematics at s = 13 TeV, which may provide valuable constraints on the intrinsic charm component of the proton. A comparison is performed between fixed order and NLO predictions matched to a parton shower showing mutual compatibility within the respective uncertainties. NNLO corrections typically lead to a reduction of theoretical uncertainties by a factor of two and the perturbative convergence is further improved through the introduction of a theory-inspired constraint on the transverse momentum of the vector boson plus jet system. A comparison between these predictions with data will require an alignment of a flavour-tagging procedure in theory and experiment that is infrared and collinear safe.
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Affiliation(s)
- R. Gauld
- Max Planck Institute for Physics, Föhringer Ring 6, 80805 München, Germany
| | - A. Gehrmann–De Ridder
- Institute for Theoretical Physics, ETH, 8093 Zürich, Switzerland
- Department of Physics, University of Zürich, 8057 Zürich, Switzerland
| | - E. W. N. Glover
- Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE UK
- Department of Physics, Durham University, Durham, DH1 3LE UK
| | - A. Huss
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | | | - G. Stagnitto
- Department of Physics, University of Zürich, 8057 Zürich, Switzerland
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2
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Britzger D, Gehrmann-De Ridder A, Gehrmann T, Glover EWN, Gwenlan C, Huss A, Pires J, Rabbertz K, Savoiu D, Sutton MR, Stark J. NNLO interpolation grids for jet production at the LHC. Eur Phys J C Part Fields 2022; 82:930. [PMID: 36277417 PMCID: PMC9581847 DOI: 10.1140/epjc/s10052-022-10880-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Fast interpolation-grid frameworks facilitate an efficient and flexible evaluation of higher-order predictions for any choice of parton distribution functions or value of the strong coupling α s . They constitute an essential tool for the extraction of parton distribution functions and Standard Model parameters, as well as studies of the dependence of cross sections on the renormalisation and factorisation scales. The APPLfast project provides a generic interface between the parton-level Monte Carlo generator and both the APPLgrid and the fastNLO libraries for the grid interpolation. The extension of the project to include hadron-hadron collider processes at next-to-next-to-leading order in perturbative QCD is presented, together with an application for jet production at the LHC.
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Affiliation(s)
- D. Britzger
- Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 Munich, Germany
| | - A. Gehrmann-De Ridder
- Institute for Theoretical Physics, ETH, Wolfgang-Pauli-Strasse 27, 8093 Zurich, Switzerland
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - T. Gehrmann
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - E. W. N. Glover
- Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE UK
| | - C. Gwenlan
- Department of Physics, The University of Oxford, Oxford, OX1 3RH UK
| | - A. Huss
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - J. Pires
- LIP, Avenida Professor Gama Pinto 2, 1649-003 Lisbon, Portugal
- Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal
| | - K. Rabbertz
- Institut für Experimentelle Teilchenphysik (ETP), KIT, Wolfgang-Gaede-Str. 1, 76131 Karlsruhe, Germany
- Experimental Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - D. Savoiu
- Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - M. R. Sutton
- Department of Physics and Astronomy, The University of Sussex, Brighton, BN1 9RH UK
| | - J. Stark
- Institut für Experimentelle Teilchenphysik (ETP), KIT, Wolfgang-Gaede-Str. 1, 76131 Karlsruhe, Germany
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Chen X, Gehrmann T, Glover EWN, Huss A, Mistlberger B, Pelloni A. Fully Differential Higgs Boson Production to Third Order in QCD. Phys Rev Lett 2021; 127:072002. [PMID: 34459639 DOI: 10.1103/physrevlett.127.072002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/11/2021] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
We present the first fully differential predictions for the production cross section of a Higgs boson via the gluon fusion mechanism at next-to-next-to-next-to-leading order (N^{3}LO) in QCD perturbation theory. Differential distributions are shown for the two-photon final state produced by the decay of the Higgs boson for a realistic set of fiducial cuts. The N^{3}LO corrections exhibit complex features and are in part larger than the inclusive N^{3}LO corrections to the production cross section. Overall, we observe that the inclusion of the N^{3}LO QCD corrections significantly reduces the perturbative uncertainties and leads to a stabilization of the perturbative expansion.
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Affiliation(s)
- X Chen
- Department of Physics, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
- Institute for Theoretical Physics, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
- Institute for Astroparticle Physics, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
| | - T Gehrmann
- Department of Physics, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - E W N Glover
- Institute for Particle Physics Phenomenology, University of Durham, Durham DH1 3LE, United Kingdom
| | - A Huss
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - B Mistlberger
- SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94039, USA
| | - A Pelloni
- Nikhef Theory Group, Science Park 105, 1098 XG Amsterdam, Netherlands
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van Schaik G, Seinen P, Muskens J, van Erp T, Keurentjes J, Huss A, Kromhout H. Possible causes of aberrations in adverse grouping behavior of dairy cows: A field study. J Dairy Sci 2021; 104:7000-7007. [PMID: 33865599 DOI: 10.3168/jds.2020-19269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 11/14/2020] [Indexed: 11/19/2022]
Abstract
In the Dutch national surveillance system, an increasing number of reports were received in the summer of 2017 from farmers about unusual behavior of their cows. The cows were grouping during the day in summer in one part of the barn and did not move for several hours, which, according to the farmers, led to reduced food and water intake and lying time and resulted in decreased milk production and increased risk of lameness. Many farmers perceived magnetic fields from, for instance, high-voltage lines, automated milking systems, or solar panels as possible causes for the behavior of their cows. Our aim for the study was to study potential factors such as magnetic fields and other factors such as barn climate and insect burden for adverse grouping behavior of dairy cows in the barn. For each case herd, 2 control herds were selected in the same postal area code. A case was a herd in which cattle grouped at least on 7 occasions in a month for several hours. In a control herd, the cows were in the barn during the same time period as in the matching case herd but did not show adverse grouping behavior. A questionnaire was administered by telephone in 31 case herds and 62 control herds. The questionnaire gathered information on behavior of the cows and potential risk factors. In addition, data on the distance of the herd to high-voltage lines was obtained. From a total of 74 variables, all variables with a P-value ≤0.10 were included in full multivariable logistic regression model. Backward selection was carried out at P ≤ 0.10. The grouping behavior of the cows started in most herds in June, was seen only during the day, and lasted mostly 6 to 8 h, with cows often grouped in the northern part of the barn. Identified risk factors appeared to be recently constructed barns, measured stray voltage in barns, and presence of fans in barns. Given the cross-sectional design of the case-control study, causality for these risk factors leading to adverse behavior of the cows could not be proven. Dissemination of the results to farmers hopefully results in measures that can prevent the unusual grouping behavior of cows.
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Affiliation(s)
- G van Schaik
- Royal GD, Deventer 7400AA, the Netherlands; Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3508TD, the Netherlands.
| | - P Seinen
- Royal GD, Deventer 7400AA, the Netherlands
| | - J Muskens
- Royal GD, Deventer 7400AA, the Netherlands
| | - T van Erp
- Royal GD, Deventer 7400AA, the Netherlands
| | | | - A Huss
- Institute for Risk Assessment Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3508TD, the Netherlands
| | - H Kromhout
- Institute for Risk Assessment Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3508TD, the Netherlands
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Gauld R, Ridder AGD, Glover EWN, Huss A, Majer I. Predictions for Z-Boson Production in Association with a b-Jet at O(α_{s}^{3}). Phys Rev Lett 2020; 125:222002. [PMID: 33315443 DOI: 10.1103/physrevlett.125.222002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 10/13/2020] [Accepted: 10/30/2020] [Indexed: 06/12/2023]
Abstract
Precise predictions are provided for the production of a Z boson and a b-jet in hadron-hadron collisions within the framework of perturbative QCD, at O(α_{s}^{3}). To obtain these predictions, we perform the first calculation of a hadronic scattering process involving the direct production of a flavored jet at next-to-next-to-leading-order accuracy in massless QCD and extend techniques to also account for the impact of finite heavy-quark mass effects. The predictions are compared to CMS data obtained in pp collisions at a center-of-mass energy of 8 TeV, which are the most precise data from run I of the LHC for this process, where a good description of the data is achieved. To allow this comparison, we have performed an unfolding of the data, which overcomes the long-standing issue that the experimental and theoretical definitions of jet flavor are incompatible.
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Affiliation(s)
- R Gauld
- Nikhef, Science Park 105, NL-1098 XG Amsterdam, The Netherlands
| | - A Gehrmann-De Ridder
- Institute for Theoretical Physics, ETH, CH-8093 Zürich, Switzerland
- Department of Physics, University of Zürich, CH-8057 Zürich, Switzerland
| | - E W N Glover
- Institute for Particle Physics Phenomenology, University of Durham, DH1 3LE Durham, United Kingdom
| | - A Huss
- Institute for Particle Physics Phenomenology, University of Durham, DH1 3LE Durham, United Kingdom
- Theoretical Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - I Majer
- Institute for Theoretical Physics, ETH, CH-8093 Zürich, Switzerland
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6
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Huss A, Derks L, Heederik D, Wouters I. Green waste compost as potential reservoirs of Legionella in the Netherlands. Clin Microbiol Infect 2020; 26:1259.e1-1259.e3. [DOI: 10.1016/j.cmi.2020.05.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/21/2020] [Accepted: 05/09/2020] [Indexed: 11/24/2022]
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Abdelhak A, Huss A, Brück A, Sebert U, Mayer B, Müller HP, Tumani H, Otto M, Yilmazer-Hanke D, Ludolph AC, Kassubek J, Pinkhardt E, Neugebauer H. Optical coherence tomography-based assessment of retinal vascular pathology in cerebral small vessel disease. Neurol Res Pract 2020; 2:13. [PMID: 33324919 PMCID: PMC7650138 DOI: 10.1186/s42466-020-00062-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/29/2020] [Indexed: 12/13/2022] Open
Abstract
Background Cerebral small vessel disease (CSVD) is a disorder of brain vasculature that causes various structural changes in the brain parenchyma, and is associated with various clinical symptoms such as cognitive impairment and gait disorders. Structural changes of brain arterioles cannot be visualized with routine imaging techniques in vivo. However, optical coherence tomography (OCT) is thought to be a “window to the brain”. Thus, retinal vessel parameters may correlate with CSVD characteristic brain lesions and cerebrospinal fluid biomarkers (CSF) of the neuropathological processes in CSVD like endothelial damage, microglial activation and neuroaxonal damage. Methods We applied OCT-based assessment of retinal vessels, magnetic resonance imaging (MRI), and CSF biomarker analysis in a monocentric prospective cohort of 24 patients with sporadic CSVD related stroke and cognitive impairment. MRI lesions were defined according to the STandards for ReportIng Vascular changes on nEuroimaging (STRIVE). Biomarkers were assessed using commercially available ELISA kits. Owing to the unavailability of an age-matched control-group lacking MRI-characteristics of CSVD, we compared the retinal vessel parameters in CSVD patients (73.8 ± 8.5 years) with a younger group of healthy controls (51.0 ± 16.0 years) by using an age- and sex-adjusted multiple linear regression analysis model. Results Among the parameters measured with OCT, the Wall to Lumen Ratio (WLR) but not Mean Wall Thickness (MWT) of the superior branch of the retinal artery correlated significantly with the volume of white matter hyperintensities on MRI (rs = − 0.5) and with CSF-levels of Chitinase 3 like 1 protein (rs = − 0.6), zona occludens 1 protein (rs = − 0.5) and GFAP (rs = − 0.4). MWT and WLR were higher in CSVD than in controls (28.9 μm vs. 23.9 μm, p = 0.001 and 0.32 vs. 0.25, p = 0.001). Conclusions In this exploratory study, WLR correlated with the volume of white matter hyperintensities, and markers of vascular integrity, microglial activation, and neuroaxonal damage in CSVD. Further prospective studies should clarify whether retinal vessel parameters and CSF biomarkers may serve to monitor the natural course and treatment effects in clinical studies on CSVD.
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Affiliation(s)
- A Abdelhak
- Department of Neurology & Stroke, University Hospital of Tübingen, Tübingen, Germany.,Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - A Huss
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - A Brück
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - U Sebert
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - B Mayer
- Institute of Epidemiology and Medical Biometry, Ulm, Germany
| | - H P Müller
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - H Tumani
- Department of Neurology, University Hospital of Ulm, Ulm, Germany.,Specialty Clinic of Neurology Dietenbronn, Schwendi, Germany
| | - M Otto
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - D Yilmazer-Hanke
- Clinical Neuroanatomy Section, Department of Neurology, Ulm, Germany
| | - A C Ludolph
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - J Kassubek
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - E Pinkhardt
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - H Neugebauer
- Department of Neurology, University Hospital of Ulm, Ulm, Germany.,Department of Neurology, University of Wuerzburg, Würzburg, Germany
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Gehrmann T, Huss A, Mo J, Niehues J. Second-order QCD corrections to event shape distributions in deep inelastic scattering. Eur Phys J C Part Fields 2019; 79:1022. [PMID: 31903046 PMCID: PMC6924261 DOI: 10.1140/epjc/s10052-019-7528-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 11/29/2019] [Indexed: 06/10/2023]
Abstract
We compute the next-to-next-to-leading order (NNLO) QCD corrections to event shape distributions and their mean values in deep inelastic lepton-nucleon scattering. The magnitude and shape of the corrections varies considerably between different variables. The corrections reduce the renormalization and factorization scale uncertainty of the predictions. Using a dispersive model to describe non-perturbative power corrections, we compare the NNLO QCD predictions with data from the H1 and ZEUS experiments. The newly derived corrections improve the theory description of the distributions and of their mean values.
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Affiliation(s)
- T. Gehrmann
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - A. Huss
- Theoretical Physics Department, CERN, 1211, Geneva 23, Switzerland
| | - J. Mo
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - J. Niehues
- Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE UK
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Abdelhak A, Huss A, Kassubek J, Tumani H, Otto M. Author Correction: Serum GFAP as a biomarker for disease severity in multiple sclerosis. Sci Rep 2019; 9:8433. [PMID: 31164658 PMCID: PMC6548773 DOI: 10.1038/s41598-019-43990-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Britzger D, Currie J, Ridder AGD, Gehrmann T, Glover EWN, Gwenlan C, Huss A, Morgan T, Niehues J, Pires J, Rabbertz K, Sutton MR. Calculations for deep inelastic scattering using fast interpolation grid techniques at NNLO in QCD and the extraction of α s from HERA data. Eur Phys J C Part Fields 2019; 79:845. [PMID: 31807114 PMCID: PMC6860626 DOI: 10.1140/epjc/s10052-019-7351-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 09/27/2019] [Indexed: 06/10/2023]
Abstract
The extension of interpolation-grid frameworks for perturbative QCD calculations at next-to-next-to-leading order (NNLO) is presented for deep inelastic scattering (DIS) processes. A fast and flexible evaluation of higher-order predictions for any a posteriori choice of parton distribution functions (PDFs) or value of the strong coupling constant is essential in iterative fitting procedures to extract PDFs and Standard Model parameters as well as for a detailed study of the scale dependence. The APPLfast project, described here, provides a generic interface between the parton-level Monte Carlo program NNLOjet and both the APPLgrid and fastNLO libraries for the production of interpolation grids at NNLO accuracy. Details of the interface for DIS processes are presented together with the required interpolation grids at NNLO, which are made available. They cover numerous inclusive jet measurements by the H1 and ZEUS experiments at HERA. An extraction of the strong coupling constant is performed as an application of the use of such grids and a best-fit value of α s ( M Z ) = 0.1170 ( 15 ) exp ( 25 ) th is obtained using the HERA inclusive jet cross section data.
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Affiliation(s)
- D. Britzger
- Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 Munich, Germany
| | - J. Currie
- Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE UK
| | - A. Gehrmann-De Ridder
- Institute for Theoretical Physics, ETH, Wolfgang-Pauli-Strasse 27, 8093 Zurich, Switzerland
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - T. Gehrmann
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - E. W. N. Glover
- Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE UK
| | - C. Gwenlan
- Department of Physics, The University of Oxford, Oxford, OX1 3PU UK
| | - A. Huss
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - T. Morgan
- Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE UK
| | - J. Niehues
- Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE UK
| | - J. Pires
- CFTP, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
- LIP, Avenida Professor Gama Pinto 2, 1649-003 Lisbon, Portugal
| | - K. Rabbertz
- Institut für Experimentelle Teilchenphysik (ETP), Karlsruhe Institute of Technology (KIT), Wolgang-Gaede-Str. 1, 76131 Karlsruhe, Germany
| | - M. R. Sutton
- Department of Physics and Astronomy, The University of Sussex, Brighton, BN1 9RH UK
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Ridder AGD, Gehrmann T, Glover EWN, Huss A, Pires J. Triple Differential Dijet Cross Section at the LHC. Phys Rev Lett 2019; 123:102001. [PMID: 31573318 DOI: 10.1103/physrevlett.123.102001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Indexed: 06/10/2023]
Abstract
The measurement of the triple-differential dijet production cross section as a function of the average transverse momentum p_{T,avg}, half the rapidity separation y^{*}, and the boost y_{b} of the two leading jets in the event enables a kinematical scan of the underlying parton momentum distributions. We compute for the first time the second-order perturbative QCD corrections to this triple-differential dijet cross section, at leading color in all partonic channels, thereby enabling precision studies with LHC dijet data. A detailed comparison with experimental CMS 8 TeV data is performed, demonstrating how the shape of this differential cross section probes the parton densities in different kinematical ranges.
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Affiliation(s)
- A Gehrmann-De Ridder
- Institute for Theoretical Physics, ETH, CH-8093 Zürich, Switzerland
- Department of Physics, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - T Gehrmann
- Department of Physics, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - E W N Glover
- Institute for Particle Physics Phenomenology, University of Durham, Durham DH1 3LE, United Kingdom
| | - A Huss
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - J Pires
- CFTP, Instituto Superior Técnico, Universidade de Lisboa, P-1049-001 Lisboa, Portugal
- LIP, Avenida Professor Gama Pinto 2, P-1649-003 Lisboa, Portugal
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12
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Gehrmann–De Ridder A, Gehrmann T, Glover EWN, Huss A, Walker DM. Vector boson production in association with a jet at forward rapidities. Eur Phys J C Part Fields 2019; 79:526. [PMID: 31303858 PMCID: PMC6593900 DOI: 10.1140/epjc/s10052-019-7010-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 06/01/2019] [Indexed: 06/10/2023]
Abstract
Final states with a vector boson and a hadronic jet allow one to infer the Born-level kinematics of the underlying hard scattering process, thereby probing the partonic structure of the colliding protons. At forward rapidities, the parton collisions are highly asymmetric and resolve the parton distributions at very large or very small momentum fractions, where they are less well constrained by other processes. Using theory predictions accurate to next-to-next-to-leading order (NNLO) in QCD for both W ± and Z production in association with a jet at large rapidities at the LHC, we perform a detailed phenomenological analysis of recent LHC measurements. The increased theory precision allows us to clearly identify specific kinematical regions where the description of the data is insufficient. By constructing ratios and asymmetries of these cross sections, we aim to identify possible origins of the deviations, and highlight the potential impact of the data on improved determinations of parton distributions.
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Affiliation(s)
- A. Gehrmann–De Ridder
- Institute for Theoretical Physics, ETH, CH-8093 Zürich, Switzerland
- Department of Physics, University of Zürich, CH-8057 Zürich, Switzerland
| | - T. Gehrmann
- Department of Physics, University of Zürich, CH-8057 Zürich, Switzerland
| | - E. W. N. Glover
- Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE UK
| | - A. Huss
- Theoretical Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - D. M. Walker
- Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE UK
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13
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Pelacho B, Lopez-Diaz De Cerio A, Inoges S, Perez-Astenaga I, Gavira JJ, Abizanda G, Andreu E, Crisostomo V, Bermejo J, Huss A, Gil AG, Koblizek T, Quintana LL, Fernandez-Aviles F, Prosper F. P5676Safety and immunomodulatory action of epicardial patches combined with allogeneic adipose-derived mesenchymal stem cells in a rodent and porcine model of myocardial infarction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- B Pelacho
- Center for Applied Medical Research, Stem Cell Area, Pamplona, Spain
| | | | - S Inoges
- Clinica Universidad de Navarra, Pamplona, Spain
| | - I Perez-Astenaga
- Center for Applied Medical Research, Stem Cell Area, Pamplona, Spain
| | - J J Gavira
- Clinica Universidad de Navarra, Pamplona, Spain
| | - G Abizanda
- Center for Applied Medical Research, Stem Cell Area, Pamplona, Spain
| | - E Andreu
- Clinica Universidad de Navarra, Pamplona, Spain
| | - V Crisostomo
- Jesus Uson Minimally Invasive Surgery Centre, Caceres, Spain
| | - J Bermejo
- University Hospital Gregorio Maranon, Madrid, Spain
| | - A Huss
- Viscofan BioEngineering, a business unit of Naturin Viscofan GmbH, Wenheim, Germany
| | - A G Gil
- University of Navarra, Pamplona, Spain
| | - T Koblizek
- Viscofan BioEngineering, a business unit of Naturin Viscofan GmbH, Wenheim, Germany
| | - L L Quintana
- Viscofan BioEngineering, a business unit of Naturin Viscofan GmbH, Wenheim, Germany
| | | | - F Prosper
- Clinica Universidad de Navarra, Pamplona, Spain
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14
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Britzger D, Currie J, Gehrmann T, Huss A, Niehues J, Žlebčík R. Dijet production in diffractive deep-inelastic scattering in next-to-next-to-leading order QCD. Eur Phys J C Part Fields 2018; 78:538. [PMID: 30393461 PMCID: PMC6191019 DOI: 10.1140/epjc/s10052-018-5981-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 06/07/2018] [Indexed: 06/08/2023]
Abstract
Hard processes in diffractive deep-inelastic scattering can be described by a factorisation into parton-level subprocesses and diffractive parton distributions. In this framework, cross sections for inclusive dijet production in diffractive deep-inelastic electron-proton scattering (DIS) are computed to next-to-next-to-leading order (NNLO) QCD accuracy and compared to a comprehensive selection of data. Predictions for the total cross sections, 40 single-differential and four double-differential distributions for six measurements at HERA by the H1 and ZEUS collaborations are calculated. In the studied kinematical range, the NNLO corrections are found to be sizeable and positive. The NNLO predictions typically exceed the data, while the kinematical shape of the data is described better at NNLO than at next-to-leading order (NLO). A significant reduction of the scale uncertainty is achieved in comparison to NLO predictions. Our results use the currently available NLO diffractive parton distributions, and the discrepancy in normalisation highlights the need for a consistent determination of these distributions at NNLO accuracy.
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Affiliation(s)
- D. Britzger
- Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
| | - J. Currie
- Institute for Particle Physics Phenomenology, Durham University, Durham DH1 3LE, UK
| | - T. Gehrmann
- Physik-Institut, Universität Zürich, Winterthurerstraße 190, 8057 Zurich, Switzerland
| | - A. Huss
- Theoretical Physics Department, CERN, 1211 Geneva, Switzerland
| | - J. Niehues
- Institute for Particle Physics Phenomenology, Durham University, Durham DH1 3LE, UK
| | - R. Žlebčík
- DESY, Notkestraße 85, 22607 Hamburg, Germany
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15
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Gehrmann-De Ridder A, Gehrmann T, Glover EWN, Huss A, Walker DM. Next-to-Next-to-Leading-Order QCD Corrections to the Transverse Momentum Distribution of Weak Gauge Bosons. Phys Rev Lett 2018; 120:122001. [PMID: 29694069 DOI: 10.1103/physrevlett.120.122001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Indexed: 06/08/2023]
Abstract
The transverse momentum spectra of weak gauge bosons and their ratios probe the underlying dynamics and are crucial in testing our understanding of the standard model. They are an essential ingredient in precision measurements, such as the W boson mass extraction. To fully exploit the potential of the LHC data, we compute the second-order [next-to-next-to-leading-order (NNLO)] QCD corrections to the inclusive-p_{T}^{W} spectrum as well as to the ratios of spectra for W^{-}/W^{+} and Z/W. We find that the inclusion of NNLO QCD corrections considerably improves the theoretical description of the experimental CMS data and results in a substantial reduction of the residual scale uncertainties.
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Affiliation(s)
- A Gehrmann-De Ridder
- Institute for Theoretical Physics, ETH, CH-8093 Zürich, Switzerland
- Department of Physics, University of Zürich, CH-8057 Zürich, Switzerland
| | - T Gehrmann
- Department of Physics, University of Zürich, CH-8057 Zürich, Switzerland
| | - E W N Glover
- Institute for Particle Physics Phenomenology, Durham University, Durham DH1 3LE, United Kingdom
| | - A Huss
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - D M Walker
- Institute for Particle Physics Phenomenology, Durham University, Durham DH1 3LE, United Kingdom
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16
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Jarius S, Ruprecht K, Stellmann JP, Huss A, Ayzenberg I, Willing A, Trebst C, Pawlitzki M, Abdelhak A, Grüter T, Leypoldt F, Haas J, Kleiter I, Tumani H, Fechner K, Reindl M, Paul F, Wildemann B. MOG-IgG in primary and secondary chronic progressive multiple sclerosis: a multicenter study of 200 patients and review of the literature. J Neuroinflammation 2018; 15:88. [PMID: 29554927 PMCID: PMC5859439 DOI: 10.1186/s12974-018-1108-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 02/26/2018] [Indexed: 12/30/2022] Open
Abstract
Background Antibodies to human full-length myelin oligodendrocyte glycoprotein (MOG-IgG) as detected by new-generation cell-based assays have recently been described in patients presenting with acute demyelinating disease of the central nervous system, including patients previously diagnosed with multiple sclerosis (MS). However, only limited data are available on the relevance of MOG-IgG testing in patients with chronic progressive demyelinating disease. It is unclear if patients with primary progressive MS (PPMS) or secondary progressive MS (SPMS) should routinely be tested for MOG-IgG. Objective To evaluate the frequency of MOG-IgG among patients classified as having PPMS or SPMS based on current diagnostic criteria. Methods For this purpose, we retrospectively tested serum samples of 200 patients with PPMS or SPMS for MOG-IgG using cell-based assays. In addition, we performed a review of the entire English language literature on MOG-IgG published between 2011 and 2017. Results None of 139 PPMS and 61 SPMS patients tested was positive for MOG-IgG. Based on a review of the literature, we identified 35 further MOG-IgG tests in patients with PPMS and 55 in patients with SPMS; the only reportedly positive sample was positive just at threshold level and was tested in a non-IgG-specific assay. In total, a single borderline positive result was observed among 290 tests. Conclusion Our data suggest that MOG-IgG is absent or extremely rare among patients with PPMS or SPMS. Routine screening of patients with typical PPMS/SPMS for MOG-IgG seems not to be justified.
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Affiliation(s)
- S Jarius
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany. .,Otto Meyerhof Center, Im Neuenheimer Feld 350, 69120, Heidelberg, Germany.
| | - K Ruprecht
- Department of Neurology, Charité - University Medicine Berlin, Berlin, Germany
| | - J P Stellmann
- Institut für Neuroimmunologie und Multiple Sklerose (INIMS), Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany.,Klinik und Poliklinik für Neurologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - A Huss
- Department of Neurology, University of Ulm, Ulm, Germany
| | - I Ayzenberg
- Department of Neurology, Ruhr University Bochum, Bochum, Germany
| | - A Willing
- Institut für Neuroimmunologie und Multiple Sklerose (INIMS), Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - C Trebst
- Department of Neurology, Hannover Medical School, Hanover, Germany
| | - M Pawlitzki
- Department of Neurology, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - A Abdelhak
- Department of Neurology, University of Ulm, Ulm, Germany
| | - T Grüter
- Department of Neurology, Ruhr University Bochum, Bochum, Germany
| | - F Leypoldt
- Department of Neurology and Institute of Laboratory Medicine, University Hospital Schleswig-Holstein, Kiel, Germany
| | - J Haas
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - I Kleiter
- Department of Neurology, Ruhr University Bochum, Bochum, Germany.,Marianne-Strauß-Klinik, Behandlungszentrum Kempfenhausen für Multiple Sklerose Kranke, Berg, Germany
| | - H Tumani
- Department of Neurology, University of Ulm, Ulm, Germany.,Specialty Clinic of Neurology Dietenbronn, Schwendi, Germany
| | - K Fechner
- Institute of Experimental Immunology, affiliated to Euroimmun AG, Lübeck, Germany
| | - M Reindl
- Clinical Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - F Paul
- Department of Neurology, Charité - University Medicine Berlin, Berlin, Germany.,NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - B Wildemann
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany. .,Otto Meyerhof Center, Im Neuenheimer Feld 350, 69120, Heidelberg, Germany.
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17
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Lindert JM, Pozzorini S, Boughezal R, Campbell JM, Denner A, Dittmaier S, Gehrmann-De Ridder A, Gehrmann T, Glover N, Huss A, Kallweit S, Maierhöfer P, Mangano ML, Morgan TA, Mück A, Petriello F, Salam GP, Schönherr M, Williams C. Precise predictions for V + jets dark matter backgrounds. Eur Phys J C Part Fields 2017; 77:829. [PMID: 31997935 PMCID: PMC6956894 DOI: 10.1140/epjc/s10052-017-5389-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 11/15/2017] [Indexed: 06/08/2023]
Abstract
High-energy jets recoiling against missing transverse energy (MET) are powerful probes of dark matter at the LHC. Searches based on large MET signatures require a precise control of the Z ( ν ν ¯ ) + jet background in the signal region. This can be achieved by taking accurate data in control regions dominated by Z ( ℓ + ℓ - ) + jet, W ( ℓ ν ) + jet and γ + jet production, and extrapolating to the Z ( ν ν ¯ ) + jet background by means of precise theoretical predictions. In this context, recent advances in perturbative calculations open the door to significant sensitivity improvements in dark matter searches. In this spirit, we present a combination of state-of-the-art calculations for all relevant V + jets processes, including throughout NNLO QCD corrections and NLO electroweak corrections supplemented by Sudakov logarithms at two loops. Predictions at parton level are provided together with detailed recommendations for their usage in experimental analyses based on the reweighting of Monte Carlo samples. Particular attention is devoted to the estimate of theoretical uncertainties in the framework of dark matter searches, where subtle aspects such as correlations across different V + jet processes play a key role. The anticipated theoretical uncertainty in the Z ( ν ν ¯ ) + jet background is at the few percent level up to the TeV range.
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Affiliation(s)
- J. M. Lindert
- Department of Physics, Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LE UK
| | - S. Pozzorini
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - R. Boughezal
- High Energy Physics Division, Argonne National Laboratory, Argonne, IL 60439 USA
| | | | - A. Denner
- Institut für Theoretische Physik und Astrophysik, Universität Würzburg, 97074 Würzburg, Germany
| | - S. Dittmaier
- Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, 79104 Freiburg, Germany
| | - A. Gehrmann-De Ridder
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
- Institute for Theoretical Physics, ETH, 8093 Zurich, Switzerland
| | - T. Gehrmann
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - N. Glover
- Department of Physics, Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LE UK
| | - A. Huss
- Institute for Theoretical Physics, ETH, 8093 Zurich, Switzerland
| | - S. Kallweit
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - P. Maierhöfer
- Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, 79104 Freiburg, Germany
| | - M. L. Mangano
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - T. A. Morgan
- Department of Physics, Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LE UK
| | - A. Mück
- Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, Germany
| | - F. Petriello
- High Energy Physics Division, Argonne National Laboratory, Argonne, IL 60439 USA
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208 USA
| | - G. P. Salam
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - M. Schönherr
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - C. Williams
- Department of Physics, University at Buffalo, The State University of New York, Buffalo, 14260 USA
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18
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Andreev V, Baghdasaryan A, Begzsuren K, Belousov A, Bertone V, Bolz A, Boudry V, Brandt G, Brisson V, Britzger D, Buniatyan A, Bylinkin A, Bystritskaya L, Campbell AJ, Cantun Avila KB, Cerny K, Chekelian V, Contreras JG, Cvach J, Currie J, Dainton JB, Daum K, Diaconu C, Dobre M, Dodonov V, Eckerlin G, Egli S, Elsen E, Favart L, Fedotov A, Feltesse J, Fleischer M, Fomenko A, Gabathuler E, Gayler J, Gehrmann T, Ghazaryan S, Goerlich L, Gogitidze N, Gouzevitch M, Grab C, Grebenyuk A, Greenshaw T, Grindhammer G, Gwenlan C, Haidt D, Henderson RCW, Hladkỳ J, Hoffmann D, Horisberger R, Hreus T, Huber F, Huss A, Jacquet M, Janssen X, Jung AW, Jung H, Kapichine M, Katzy J, Kiesling C, Klein M, Kleinwort C, Kogler R, Kostka P, Kretzschmar J, Krücker D, Krüger K, Landon MPJ, Lange W, Laycock P, Lebedev A, Levonian S, Lipka K, List B, List J, Lobodzinski B, Malinovski E, Martyn HU, Maxfield SJ, Mehta A, Meyer AB, Meyer H, Meyer J, Mikocki S, Morozov A, Müller K, Naumann T, Newman PR, Niebuhr C, Niehues J, Nowak G, Olsson JE, Ozerov D, Pascaud C, Patel GD, Perez E, Petrukhin A, Picuric I, Pirumov H, Pitzl D, Plačakytė R, Polifka R, Rabbertz K, Radescu V, Raicevic N, Ravdandorj T, Reimer P, Rizvi E, Robmann P, Roosen R, Rostovtsev A, Rotaru M, Šálek D, Sankey DPC, Sauter M, Sauvan E, Schmitt S, Schoeffel L, Schöning A, Sefkow F, Shushkevich S, Soloviev Y, Sopicki P, South D, Spaskov V, Specka A, Steder M, Stella B, Straumann U, Sutton MR, Sykora T, Thompson PD, Traynor D, Truöl P, Tsakov I, Tseepeldorj B, Valkárová A, Vallée C, Van Mechelen P, Vazdik Y, Wegener D, Wünsch E, Žáček J, Zhang Z, Žlebčík R, Zohrabyan H, Zomer F. Determination of the strong coupling constant α s ( m Z ) in next-to-next-to-leading order QCD using H1 jet cross section measurements: H1 Collaboration. Eur Phys J C Part Fields 2017; 77:791. [PMID: 31997933 PMCID: PMC6956906 DOI: 10.1140/epjc/s10052-017-5314-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 10/12/2017] [Indexed: 06/08/2023]
Abstract
The strong coupling constant α s is determined from inclusive jet and dijet cross sections in neutral-current deep-inelastic ep scattering (DIS) measured at HERA by the H1 collaboration using next-to-next-to-leading order (NNLO) QCD predictions. The dependence of the NNLO predictions and of the resulting value ofα s ( m Z ) at the Z-boson mass m Z are studied as a function of the choice of the renormalisation and factorisation scales. Using inclusive jet and dijet data together, the strong coupling constant is determined to beα s ( m Z ) = 0.1157 ( 20 ) exp ( 29 ) th . Complementary,α s ( m Z ) is determined together with parton distribution functions of the proton (PDFs) from jet and inclusive DIS data measured by the H1 experiment. The valueα s ( m Z ) = 0.1142 ( 28 ) tot obtained is consistent with the determination from jet data alone. The impact of the jet data on the PDFs is studied. The running of the strong coupling is tested at different values of the renormalisation scale and the results are found to be in agreement with expectations.
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Affiliation(s)
- V. Andreev
- Lebedev Physical Institute, Moscow, Russia
| | | | - K. Begzsuren
- Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia
| | | | - V. Bertone
- Department of Physics and Astronomy, Vrije University, De Boelelaan 1081, Amsterdam, The Netherlands
- National Institute for Subatomic Physics (NIKHEF), Science Park 105, Amsterdam, The Netherlands
| | - A. Bolz
- Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany
| | - V. Boudry
- LLR, Ecole Polytechnique, CNRS/IN2P3, Palaiseau, France
| | - G. Brandt
- II. Physikalisches Institut, Universität Göttingen, Göttingen, Germany
| | - V. Brisson
- LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
| | - D. Britzger
- Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany
| | - A. Buniatyan
- School of Physics and Astronomy, University of Birmingham, Birmingham, UK
| | - A. Bylinkin
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region Russian Federation
| | - L. Bystritskaya
- Institute for Theoretical and Experimental Physics, Moscow, Russia
| | | | | | - K. Cerny
- Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | | | - J. G. Contreras
- Departamento de Fisica Aplicada, CINVESTAV, Mérida, Yucatán Mexico
| | - J. Cvach
- Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - J. Currie
- Institute for Particle Physics Phenomenology, Ogden Centre for Fundamental Physics, Durham University, South Road, Durham, UK
| | - J. B. Dainton
- Department of Physics, University of Liverpool, Liverpool, UK
| | - K. Daum
- Fachbereich C, Universität Wuppertal, Wuppertal, Germany
| | - C. Diaconu
- Aix Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France
| | - M. Dobre
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), Bucharest, Romania
| | | | | | - S. Egli
- Paul Scherrer Institute, Villigen, Switzerland
| | | | - L. Favart
- Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium
| | - A. Fedotov
- Institute for Theoretical and Experimental Physics, Moscow, Russia
| | | | | | - A. Fomenko
- Lebedev Physical Institute, Moscow, Russia
| | - E. Gabathuler
- Department of Physics, University of Liverpool, Liverpool, UK
| | | | - T. Gehrmann
- Physik-Institut der Universität Zürich, Zurich, Switzerland
| | | | - L. Goerlich
- Institute of Nuclear Physics, Polish Academy of Sciences, 31342 Kraków, Poland
| | | | - M. Gouzevitch
- IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3, Villeurbanne, France
| | - C. Grab
- Institut für Teilchenphysik, ETH Zürich, Zurich, Switzerland
| | - A. Grebenyuk
- Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium
| | - T. Greenshaw
- Department of Physics, University of Liverpool, Liverpool, UK
| | | | - C. Gwenlan
- Department of Physics, Oxford University, Oxford, UK
| | | | | | - J. Hladkỳ
- Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - D. Hoffmann
- Aix Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France
| | | | - T. Hreus
- Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium
| | - F. Huber
- Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany
| | - A. Huss
- Institut für Teilchenphysik, ETH Zürich, Zurich, Switzerland
| | - M. Jacquet
- LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
| | - X. Janssen
- Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium
| | - A. W. Jung
- Department of Physics and Astronomy, Purdue University, 525 Northwestern Ave, West Lafayette, IN 47907 USA
| | | | - M. Kapichine
- Joint Institute for Nuclear Research, Dubna, Russia
| | | | - C. Kiesling
- Max-Planck-Institut für Physik, Munich, Germany
| | - M. Klein
- Department of Physics, University of Liverpool, Liverpool, UK
| | | | - R. Kogler
- Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany
| | - P. Kostka
- Department of Physics, University of Liverpool, Liverpool, UK
| | - J. Kretzschmar
- Department of Physics, University of Liverpool, Liverpool, UK
| | | | | | - M. P. J. Landon
- School of Physics and Astronomy, Queen Mary University of London, London, UK
| | | | - P. Laycock
- Department of Physics, University of Liverpool, Liverpool, UK
| | - A. Lebedev
- Lebedev Physical Institute, Moscow, Russia
| | | | | | | | | | | | | | - H.-U. Martyn
- I. Physikalisches Institut der RWTH, Aachen, Germany
| | - S. J. Maxfield
- Department of Physics, University of Liverpool, Liverpool, UK
| | - A. Mehta
- Department of Physics, University of Liverpool, Liverpool, UK
| | | | - H. Meyer
- Fachbereich C, Universität Wuppertal, Wuppertal, Germany
| | | | - S. Mikocki
- Institute of Nuclear Physics, Polish Academy of Sciences, 31342 Kraków, Poland
| | - A. Morozov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - K. Müller
- Physik-Institut der Universität Zürich, Zurich, Switzerland
| | | | - P. R. Newman
- School of Physics and Astronomy, University of Birmingham, Birmingham, UK
| | | | - J. Niehues
- Physik-Institut der Universität Zürich, Zurich, Switzerland
| | - G. Nowak
- Institute of Nuclear Physics, Polish Academy of Sciences, 31342 Kraków, Poland
| | | | - D. Ozerov
- Paul Scherrer Institute, Villigen, Switzerland
| | - C. Pascaud
- LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
| | - G. D. Patel
- Department of Physics, University of Liverpool, Liverpool, UK
| | | | - A. Petrukhin
- IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3, Villeurbanne, France
| | - I. Picuric
- Faculty of Science, University of Montenegro, Podgorica, Montenegro
| | | | | | | | - R. Polifka
- Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
- Department of Physics, University of Toronto, Toronto, ON M5S 1A7 Canada
| | - K. Rabbertz
- Karlsruher Institut für Technologie (KIT), Institut für Experimentelle Teilchenphysik (ETP), Wolfgang-Gaede-Str. 1, Karlsruhe, Germany
| | - V. Radescu
- Department of Physics, Oxford University, Oxford, UK
| | - N. Raicevic
- Faculty of Science, University of Montenegro, Podgorica, Montenegro
| | - T. Ravdandorj
- Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia
| | - P. Reimer
- Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - E. Rizvi
- School of Physics and Astronomy, Queen Mary University of London, London, UK
| | - P. Robmann
- Physik-Institut der Universität Zürich, Zurich, Switzerland
| | - R. Roosen
- Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium
| | - A. Rostovtsev
- Institute for Information Transmission Problems RAS, Moscow, Russia
| | - M. Rotaru
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), Bucharest, Romania
| | - D. Šálek
- Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - D. P. C. Sankey
- STFC, Rutherford Appleton Laboratory, Didcot, Oxfordshire UK
| | - M. Sauter
- Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany
| | - E. Sauvan
- Aix Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France
- LAPP, Université de Savoie, CNRS/IN2P3, Annecy-le-Vieux, France
| | | | | | - A. Schöning
- Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany
| | | | - S. Shushkevich
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia
| | | | - P. Sopicki
- Institute of Nuclear Physics, Polish Academy of Sciences, 31342 Kraków, Poland
| | | | - V. Spaskov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - A. Specka
- LLR, Ecole Polytechnique, CNRS/IN2P3, Palaiseau, France
| | | | - B. Stella
- Dipartimento di Fisica, Università di Roma Tre and INFN Roma 3, Rome, Italy
| | - U. Straumann
- Physik-Institut der Universität Zürich, Zurich, Switzerland
| | - M. R. Sutton
- Department of Physics and Astronomy, University of Sussex, Pevensey II, Brighton, UK
| | - T. Sykora
- Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium
- Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - P. D. Thompson
- School of Physics and Astronomy, University of Birmingham, Birmingham, UK
| | - D. Traynor
- School of Physics and Astronomy, Queen Mary University of London, London, UK
| | - P. Truöl
- Physik-Institut der Universität Zürich, Zurich, Switzerland
| | - I. Tsakov
- Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria
| | - B. Tseepeldorj
- Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia
- Ulaanbaatar University, Ulaanbaatar, Mongolia
| | - A. Valkárová
- Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - C. Vallée
- Aix Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France
| | - P. Van Mechelen
- Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium
| | - Y. Vazdik
- Lebedev Physical Institute, Moscow, Russia
| | - D. Wegener
- Institut für Physik, TU Dortmund, Dortmund, Germany
| | | | - J. Žáček
- Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - Z. Zhang
- LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
| | | | | | - F. Zomer
- LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
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Currie J, Gehrmann-De Ridder A, Gehrmann T, Glover EWN, Huss A, Pires J. Precise Predictions for Dijet Production at the LHC. Phys Rev Lett 2017; 119:152001. [PMID: 29077440 DOI: 10.1103/physrevlett.119.152001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Indexed: 06/07/2023]
Abstract
We present the calculation of dijet production, doubly differential in dijet mass m_{jj} and rapidity difference |y^{*}|, at leading color in all partonic channels at next-to-next-to-leading order (NNLO) in perturbative QCD. We consider the long-standing problems associated with scale choice for dijet production at next-to-leading order (NLO) and investigate the impact of including the NNLO contribution. We find that the NNLO theory provides reliable predictions, even when using scale choices that display pathological behavior at NLO. We choose the dijet invariant mass as the theoretical scale on the grounds of perturbative convergence and residual scale variation and compare the predictions to the ATLAS 7 TeV 4.5 fb^{-1} data.
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Affiliation(s)
- J Currie
- Institute for Particle Physics Phenomenology, University of Durham, Durham DH1 3LE, United Kingdom
| | - A Gehrmann-De Ridder
- Institute for Theoretical Physics, ETH, CH-8093 Zürich, Switzerland
- Department of Physics, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - T Gehrmann
- Department of Physics, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - E W N Glover
- Institute for Particle Physics Phenomenology, University of Durham, Durham DH1 3LE, United Kingdom
| | - A Huss
- Institute for Theoretical Physics, ETH, CH-8093 Zürich, Switzerland
| | - J Pires
- Max-Planck-Institut für Physik, Föhringer Ring 6, D-80805 Munich, Germany
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Huss A, Schaap K, Kromhout H. A survey on abnormal uterine bleeding among radiographers with frequent MRI exposure using intrauterine contraceptive devices. Magn Reson Med 2017; 79:1083-1089. [DOI: 10.1002/mrm.26707] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/27/2017] [Accepted: 03/18/2017] [Indexed: 11/09/2022]
Affiliation(s)
- A. Huss
- Institute for Risk Assessment Sciences; Utrecht University; the Netherlands
| | - K. Schaap
- Institute for Risk Assessment Sciences; Utrecht University; the Netherlands
| | - H. Kromhout
- Institute for Risk Assessment Sciences; Utrecht University; the Netherlands
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21
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Huss A, Oehler M, Hasenburg A, Klar M. The MSKCC nomogram is more accurate in the prediction of overall survival in a German endometrial cancer patient population than the FIGO staging system. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1592982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Gehrmann-De Ridder A, Gehrmann T, Glover EWN, Huss A, Morgan TA. Precise QCD Predictions for the Production of a Z Boson in Association with a Hadronic Jet. Phys Rev Lett 2016; 117:022001. [PMID: 27447500 DOI: 10.1103/physrevlett.117.022001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Indexed: 05/22/2023]
Abstract
We compute the cross section and differential distributions for the production of a Z boson in association with a hadronic jet to next-to-next-to-leading order (NNLO) in perturbative QCD, including the leptonic decay of the Z boson. We present numerical results for the transverse momentum and rapidity distributions of both the Z boson and the associated jet at the LHC. We find that the NNLO corrections increase the NLO predictions by approximately 1% and significantly reduce the scale variation uncertainty.
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Affiliation(s)
- A Gehrmann-De Ridder
- Department of Physics, University of Zürich, CH-8057 Zürich, Switzerland
- Institute for Theoretical Physics, ETH, CH-8093 Zürich, Switzerland
| | - T Gehrmann
- Department of Physics, University of Zürich, CH-8057 Zürich, Switzerland
| | - E W N Glover
- Institute for Particle Physics Phenomenology, Department of Physics, University of Durham, Durham DH1 3LE, United Kingdom
| | - A Huss
- Department of Physics, University of Zürich, CH-8057 Zürich, Switzerland
- Institute for Theoretical Physics, ETH, CH-8093 Zürich, Switzerland
| | - T A Morgan
- Institute for Particle Physics Phenomenology, Department of Physics, University of Durham, Durham DH1 3LE, United Kingdom
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Beekhuizen J, Vermeulen R, van Eijsden M, van Strien R, Bürgi A, Loomans E, Guxens M, Kromhout H, Huss A. Modelling indoor electromagnetic fields (EMF) from mobile phone base stations for epidemiological studies. Environ Int 2014; 67:22-26. [PMID: 24632329 DOI: 10.1016/j.envint.2014.02.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 02/25/2014] [Accepted: 02/25/2014] [Indexed: 06/03/2023]
Abstract
Radio frequency electromagnetic fields (RF-EMF) from mobile phone base stations can be reliably modelled for outdoor locations, using 3D radio wave propagation models that consider antenna characteristics and building geometry. For exposure assessment in epidemiological studies, however, it is especially important to determine indoor exposure levels as people spend most of their time indoors. We assessed the accuracy of indoor RF-EMF model predictions, and whether information on building characteristics could increase model accuracy. We performed 15-minute spot measurements in 263 rooms in 101 primary schools and 30 private homes in Amsterdam, the Netherlands. At each measurement location, we collected information on building characteristics that can affect indoor exposure to RF-EMF, namely glazing and wall and window frame materials. Next, we modelled RF-EMF at the measurement locations with the 3D radio wave propagation model NISMap. We compared model predictions with measured values to evaluate model performance, and explored if building characteristics modified the association between modelled and measured RF-EMF using a mixed effect model. We found a Spearman correlation of 0.73 between modelled and measured total downlink RF-EMF from base stations. The average modelled and measured RF-EMF were 0.053 and 0.041mW/m(2), respectively, and the precision (standard deviation of the differences between predicted and measured values) was 0.184mW/m(2). Incorporating information on building characteristics did not improve model predictions. Although there is exposure misclassification, we conclude that it is feasible to reliably rank indoor RF-EMF from mobile phone base stations for epidemiological studies.
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Affiliation(s)
- J Beekhuizen
- Institute for Risk Assessment Sciences (IRAS), Division Environmental Epidemiology, Utrecht University, Yalelaan 2, 3584 CM, Utrecht, The Netherlands
| | - R Vermeulen
- Institute for Risk Assessment Sciences (IRAS), Division Environmental Epidemiology, Utrecht University, Yalelaan 2, 3584 CM, Utrecht, The Netherlands
| | - M van Eijsden
- Department of Epidemiology and Health Promotion, Public Health Service of Amsterdam (GGD), 1018 WT, Amsterdam, The Netherlands
| | - R van Strien
- Department of Environmental Health, Public Health Service of Amsterdam (GGD), 1018 WT, Amsterdam, The Netherlands
| | - A Bürgi
- ARIAS umwelt.forschung.beratung, CH-3011, Bern, Switzerland
| | - E Loomans
- Department of Epidemiology and Health Promotion, Public Health Service of Amsterdam (GGD), 1018 WT, Amsterdam, The Netherlands
| | - M Guxens
- Institute for Risk Assessment Sciences (IRAS), Division Environmental Epidemiology, Utrecht University, Yalelaan 2, 3584 CM, Utrecht, The Netherlands
| | - H Kromhout
- Institute for Risk Assessment Sciences (IRAS), Division Environmental Epidemiology, Utrecht University, Yalelaan 2, 3584 CM, Utrecht, The Netherlands
| | - A Huss
- Institute for Risk Assessment Sciences (IRAS), Division Environmental Epidemiology, Utrecht University, Yalelaan 2, 3584 CM, Utrecht, The Netherlands.
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Hauri DD, Huss A, Zimmermann F, Kuehni CE, Röösli M. Prediction of residential radon exposure of the whole Swiss population: comparison of model-based predictions with measurement-based predictions. Indoor Air 2013; 23:406-416. [PMID: 23464847 DOI: 10.1111/ina.12040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 02/15/2013] [Indexed: 05/28/2023]
Abstract
Radon plays an important role for human exposure to natural sources of ionizing radiation. The aim of this article is to compare two approaches to estimate mean radon exposure in the Swiss population: model-based predictions at individual level and measurement-based predictions based on measurements aggregated at municipality level. A nationwide model was used to predict radon levels in each household and for each individual based on the corresponding tectonic unit, building age, building type, soil texture, degree of urbanization, and floor. Measurement-based predictions were carried out within a health impact assessment on residential radon and lung cancer. Mean measured radon levels were corrected for the average floor distribution and weighted with population size of each municipality. Model-based predictions yielded a mean radon exposure of the Swiss population of 84.1 Bq/m(3) . Measurement-based predictions yielded an average exposure of 78 Bq/m(3) . This study demonstrates that the model- and the measurement-based predictions provided similar results. The advantage of the measurement-based approach is its simplicity, which is sufficient for assessing exposure distribution in a population. The model-based approach allows predicting radon levels at specific sites, which is needed in an epidemiological study, and the results do not depend on how the measurement sites have been selected.
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Affiliation(s)
- D D Hauri
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
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Beekhuizen J, Huss A, Vermeulen R. Comments on "exposure assessment of mobile phone base station radiation in an outdoor environment using sequential surrogate modeling" by Aerts et al. Bioelectromagnetics 2013; 34:568-9. [PMID: 23873180 DOI: 10.1002/bem.21804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 06/08/2013] [Indexed: 11/08/2022]
Affiliation(s)
- J Beekhuizen
- Division Environmental Epidemiology, Institute for Risk Assessment Sciences (IRAS), Utrecht University, The Netherlands
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Beekhuizen J, Vermeulen R, Kromhout H, Bürgi A, Huss A. Geospatial modelling of electromagnetic fields from mobile phone base stations. Sci Total Environ 2013; 445-446:202-209. [PMID: 23333516 DOI: 10.1016/j.scitotenv.2012.12.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 12/07/2012] [Accepted: 12/07/2012] [Indexed: 06/01/2023]
Abstract
There is concern that exposure to radio frequency electromagnetic fields (RF-EMF) from mobile phone base stations might lead to adverse health effects. In order to assess potential health risks, reliable exposure assessment is necessary. Geospatial exposure modelling is a promising approach to quantify ambient exposure to RF-EMF for epidemiological studies involving large populations. We modelled RF-EMF for Amsterdam, The Netherlands by using a 3D RF-EMF model (NISMap). We subsequently compared modelled results to RF-EMF measurements in five areas with differing built-up characteristics (e.g., low-rise residential, high-rise commercial). We performed, in each area, repeated continuous measurements along a predefined ~2 km long path. This mobile monitoring approach captures the high spatial variability in electric field strengths. The modelled values were in good agreement with the measurements. We found a Spearman correlation of 0.86 for GSM900 and 0.85 for UMTS between modelled and measured values. The average measured GSM900 field strength was 0.21 V/m, and UMTS 0.09 V/m. The model underestimated the GSM900 field strengths by 0.07 V/m, and slightly overestimated the UMTS field strengths by 0.01 V/m. NISMap provides a reliable way of assessing environmental RF-EMF exposure for epidemiological studies of RF-EMF and health in urban areas.
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Affiliation(s)
- J Beekhuizen
- Institute for Risk Assessment Sciences, Division Environmental Epidemiology, Utrecht University, Jenalaan 18D, 3584 CK, Utrecht, The Netherlands.
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Hermansson U, Helander A, Brandt L, Huss A, Ronnberg S. Screening and Brief Intervention for Risky Alcohol Consumption in the Workplace: Results of a 1-Year Randomized Controlled Study. Alcohol Alcohol 2010; 45:252-7. [DOI: 10.1093/alcalc/agq021] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Huss A, Kooijman C, Breuer M, Böhler P, Zünd T, Wenk S, Röösli M. Fine particulate matter measurements in Swiss restaurants, cafés and bars: what is the effect of spatial separation between smoking and non-smoking areas? Indoor Air 2010; 20:52-60. [PMID: 19958392 DOI: 10.1111/j.1600-0668.2009.00625.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
UNLABELLED We performed 124 measurements of particulate matter (PM(2.5)) in 95 hospitality venues such as restaurants, bars, cafés, and a disco, which had differing smoking regulations. We evaluated the impact of spatial separation between smoking and non-smoking areas on mean PM(2.5) concentration, taking relevant characteristics of the venue, such as the type of ventilation or the presence of additional PM(2.5) sources, into account. We differentiated five smoking environments: (i) completely smoke-free location, (ii) non-smoking room spatially separated from a smoking room, (iii) non-smoking area with a smoking area located in the same room, (iv) smoking area with a non-smoking area located in the same room, and (v) smoking location which could be either a room where smoking was allowed that was spatially separated from non-smoking room or a hospitality venue without smoking restriction. In these five groups, the geometric mean PM(2.5) levels were (i) 20.4, (ii) 43.9, (iii) 71.9, (iv) 110.4, and (v) 110.3 microg/m(3), respectively. This study showed that even if non-smoking and smoking areas were spatially separated into two rooms, geometric mean PM(2.5) levels in non-smoking rooms were considerably higher than in completely smoke-free hospitality venues. PRACTICAL IMPLICATIONS PM(2.5) levels are considerably increased in the non-smoking area if smoking is allowed anywhere in the same location. Even locating the smoking area in another room resulted in a more than doubling of the PM(2.5) levels in the non-smoking room compared with venues where smoking was not allowed at all. In practice, spatial separation of rooms where smoking is allowed does not prevent exposure to environmental tobacco smoke in nearby non-smoking areas.
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Affiliation(s)
- A Huss
- Institute of Social and Preventive Medicine, University of Bern, Finkenhubelweg, Bern, Switzerland
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Latzin P, Roosli M, Huss A, Kuehni CE, Frey U. Air pollution during pregnancy and lung function in newborns: a birth cohort study. Eur Respir J 2008; 33:594-603. [DOI: 10.1183/09031936.00084008] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Brand S, Heller P, Huss A, Bircher A, Braun-Fahrländer C, Niederer M, Schwarzenbach S, Waeber R, Wegmann L, Küchenhoff J. Seelische Belastung bei Menschen mit umweltbezogenen St�rungen. Nervenarzt 2005; 76:36-42. [PMID: 15654647 DOI: 10.1007/s00115-004-1755-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Environmental illnesses raise diagnostic and therapeutic conflicts in scientific discussions and clinical practice. When a patient's health-belief model, based on environmental origins, does not match that of the expert, the therapeutic relationship can be endangered. Our study investigates this discrepancy, which has not been empirically evaluated so far. Patient (n=61) and expert disease concepts were systematically investigated. Our results indicate that in cases in which both concepts are favourable, the patient suffered minor psychiatric disorders with stable psychic structures and the symptoms were associated with medical or environmental causes. If both concepts were unfavourable, a higher proportion of psychiatric disorders with unstable psychic structures were present. In the case of incongruent concepts, the expert evaluations allow a more accurate assessment of the psychiatric diagnoses, psychic states and the psychic attribution of somatic and psychic burden.
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Affiliation(s)
- S Brand
- Psychiatrische Universitätsklinik, Basel, Schweiz
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Lim PK, Huss A, Eckert CA. Oxidation of aqueous sulfur dioxide. 3. The effects of chelating agents and phenolic antioxidants. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100218a029] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Huss A, Lim PK, Eckert CA. Oxidation of aqueous sulfur dioxide. 2. High-pressure studies and proposed reaction mechanisms. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100218a028] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Huss A, Lim PK, Eckert CA. Oxidation of aqueous sulfur dioxide. 1. Homogeneous manganese(II) and iron(II) catalysis at low pH. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100218a027] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hermansson U, Helander A, Huss A, Brandt L, Rönnberg S. The Alcohol Use Disorders Identification Test (AUDIT) and carbohydrate-deficient transferrin (CDT) in a routine workplace health examination. Alcohol Clin Exp Res 2000; 24:180-7. [PMID: 10698370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
BACKGROUND Only a few studies on workplaces have examined the Alcohol Use Disorders Identification Test (AUDIT) or carbohydrate-deficient transferrin (CDT) as screening instruments for the early identification of elevated and risky levels of alcohol consumption. The purpose of this study was to compare the performances of AUDIT, CDT, and gamma-glutamyltransferase (GGT) in a routine health examination (alcohol screening) in the workplace. METHODS The study, carried out over 16 months in a large workplace in the transport sector, was part of an on-going controlled study. Employees who came to the company health service for a routine health examination were offered the opportunity to undergo an alcohol screening and check their alcohol habits. RESULTS Of the 570 subjects who participated, 105 (18.4%) screened positive according to AUDIT, CDT, or both. Only 7.6% of the persons who screened positive did so according to both instruments. If GGT had been included as a screening instrument, the proportion of positive results would have increased to 22.0%. If we had only used AUDIT in the screening process, the proportion of positives would have fallen by nearly half. CONCLUSIONS The present findings suggest that AUDIT and CDT are complementary instruments for alcohol screening in a routine workplace health examination, and each has value for identifying a different segment of the risky drinking population.
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Affiliation(s)
- U Hermansson
- Karolinska Institutet, Department of Clinical Neuroscience, Alcohol and Drug Dependence Disorders at Karolinska Hospital, Sweden.
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Mante G, Claessen R, Huss A, Manzke R, Skibowski M, Wolf T, Knupfer M, Fink J. Occupied electronic structure and Fermi surface of YBa2Cu3O6.8. Phys Rev B Condens Matter 1991; 44:9500-9507. [PMID: 9998933 DOI: 10.1103/physrevb.44.9500] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Claessen R, Mante G, Huss A, Manzke R, Skibowski M, Wolf T, Fink J. Evidence for a surface-derived electronic state on YBa2Cu3O6.8. Phys Rev B Condens Matter 1991; 44:2399-2402. [PMID: 9999803 DOI: 10.1103/physrevb.44.2399] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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