Alexander Lincoln Read

Professor - Høyenergifysikk
Bilde av Alexander Lincoln Read
English version of this page
Telefon +47 22855062
Rom FØ381
Brukernavn
Besøksadresse Sem Sælands vei 24 Fysikkbygningen 0371 Oslo
Postadresse Postboks 1048 Blindern 0316 Oslo

Faglige interesser

Presisjonsmålinger av Higgs-bosonet med data fra ATLAS-eksperimentet ved LHC; statistisk behandling av søk-resultater (bl.a Higgs-bosonet); undersøk hvordan nyere metoder i signal-behandling og data-analyse (Compressed sensing, Gaussian processes, Machine learning) kan brukes i partikkelfysikk.

Undervisning

Forslag til MSc-prosjekter 

Precision measurements of Higgs boson production in the decay channel to two photons in the ATLAS experiment at the Large Hadron Collider: Although the first measurements of the properties of the Higgs boson discovered at CERN in 2012 are consistent with the Standard Model, the uncertainties are large and there are many physically motivated models that would give small deviations from the Standard Model predictions. MSc projects in this activity include:

  • the study of robust statistical models for the data-driven estimation of the background under the Higgs boson signal peak in the two-photon mass spectrum;
  • development of a new method to optimize the use of compute- intensive detailed simulations of the detector, (c) search for additional mass peaks below and far above the established mass peak at 125 GeV;
  • precision measurement of the Higgs boson mass; and
  • measurement of the transverse momentum spectrum of the Higgs boson.

You will work with data taken during Run 2 (2015-2018)  of the LHC. You will join the Hgamma working group in ATLAS, participate in the ongoing development of the data analysis strategies and code, learn, further develop and apply advanced statistical techniques, and, thus, contribute to furthering our understanding of the Brout-Englert-Higgs (mass-generating) mechanism and test whether there is new physics beyond the Standard Model (e.g. dark matter).

Bakgrunn

  • 1977-1981 BS, University of Illinois, Urbana-Champaign
  • 1981-1986 PhD, University of Colorado, Boulder
  • 1986-1989 NAVF Vitenskapelig assistent, Universitetet i Oslo
  • 1989-1991 Scientific Associate, CERN
  • 1991-1992 NAVF Forsker, Universitetet i Oslo
  • 1993-         Professor, Universitetet i Oslo
     

Verv

Samarbeid

 

Emneord: Partikkelfysikk, LHC, CERN, ATLAS, Higgs boson, Statistikk

Publikasjoner

"Measurement of Higgs boson production in the diphoton decay channel in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector", G. Aad et al. [ATLAS Collaboration], arXiv:1408.7084Phys.Rev. D90 (2014) 11, 112015.

"ATLAS grid workload on NDGF resources: Analysis, modeling, and workload generation", Dmytro Karpenko, Roman Vitenberg, Alexander L. Read,Future Generation Computer Systems, Volume 47, June 2015, Pages 31-47, ISSN 0167-739X.

"The discovery and measurements of a Higgs boson", A. L. Read, 2013 Phys. Scr. 2013 014009.

“A particle consistent with the Higgs Boson observed with the ATLAS Detector at the Large Hadron Collider”
G. Aad et al. [ATLAS Collaboration]. 10.1126/science.1232005 Science 338, 1576 (2012).

“Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC”, G. Aad et al. [ATLAS Collaboration], arXiv:1207.7214 [hep-ex]10.1016/j.physletb.2012.08.020. Phys. Lett. B 716, 1 (2012)

The ATLAS Collaboration, "Limits on the production of the Standard Model Higgs Boson in pp collisions at sqrt(s) =7 TeV with the ATLAS detector", Submitted to EPJC, CERN-PH-EP-2011-076, arXiv:1106.2748v2 [hep-ex]

D. Cameron, A. Konstantinov, F. Ould-Saada, K. Pajchel, A. Read, B. Samset and A. Taga, The advanced resource connector for distributed LHC computing,  PoS A CAT08, 046 (2008), Proceedings Of Science.

The DELPHI Collaboration, Final results from DELPHI on the searches for SM and MSSM neutral Higgs bosons, THE EUROPEAN PHYSICAL JOURNAL C - PARTICLES AND FIELDS, 2003, Volume 32, Number 2, 145-183, doi.org/10.1140/epjc/s2003-01394-x.

The LEP Collaborations and The LEP Working Group for Higgs Searches, Search for the Standard Model Higgs boson at LEP, Physics Letters B, 565, 61-75, 2003, DOI: 10.1016/S0370-2693(03)00614-2.

A. L. Read, Presentation of search results: the CLs technique, 2002, J. Phys. G: Nucl. Part. Phys. 28 2693 doi: 10.1088/0954-3899/28/10/313.

A. L. Read, Modified frequentist analysis of search results (the CLs method), CERN-OPEN-2000-205, CERN, Geneva, 1st Workshop on Confidence Limits, CERN, Geneva, Switzerland, 17 - 18 Jan 2000, pp.81-101, http://cdsweb.cern.ch/record/451614

S. J. Alvsvaag et al., The small angle tile calorimeter in the DELPHI experiment, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated EquipmentVolume 425, Issues 1-2, 1 April 1999, Pages 106-139, doi:10.1016/S0168-9002(98)01401-6.

A. L. Read, Linear interpolation of histograms, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 425, Issues 1-2, 1 April 1999, Pages 357-360, doi:10.1016/S0168-9002(98)01347-3.

L. Bugge et al., Absolute in situ energy calibration of luminosity calorimeters in the DELPHI experiment at LEP, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated EquipmentVolume 327, Issues 2-3, 1 April 1993, Pages 296-307, doi:10.1016/0168-9002(93)90695-E

W. W. Ash et al., Precise Measurements of the Leptonic Branching Ratios of the Tau Lepton, Phys. Rev. Lett. 55, 20,2118-2121, (1985), doi: 10.1103/PhysRevLett.55.2118.

“A Precise Measurement of the Branching Fraction for the Decay τ →ντ π”, W. T. Ford, N. Qi, A. L. Read, J. G. Smith, T. Camporesi, I. Peruzzi, M. Piccolo and R. B. Hurst et al. 10.1103/PhysRevD.35.408, Phys. Rev. D 35, 408 (1987).

 

Se alle arbeider i Cristin

Publisert 4. nov. 2010 12:32 - Sist endret 23. nov. 2021 11:30