LATTHADRONIC

Precise hadronic corrections with lattice QCD in the search for new physics

 Coordinatore STIFTUNG DEUTSCHES ELEKTRONEN-SYNCHROTRON DESY 

 Organization address address: NOTKESTRASSE 85
city: HAMBURG
postcode: 22607

contact info
Titolo: Dr.
Nome: Ute
Cognome: Krell
Email: send email
Telefono: +49 40 8998 4508
Fax: +49 40 8994 4508

 Nazionalità Coordinatore Germany [DE]
 Totale costo 168˙794 €
 EC contributo 168˙794 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2013-IEF
 Funding Scheme MC-IEF
 Anno di inizio 0
 Periodo (anno-mese-giorno) 0000-00-00   -   0000-00-00

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    STIFTUNG DEUTSCHES ELEKTRONEN-SYNCHROTRON DESY

 Organization address address: NOTKESTRASSE 85
city: HAMBURG
postcode: 22607

contact info
Titolo: Dr.
Nome: Ute
Cognome: Krell
Email: send email
Telefono: +49 40 8998 4508
Fax: +49 40 8994 4508

DE (HAMBURG) coordinator 168˙794.40

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

dominant    error    model    reduce    theory    calculation    physics    hc    masses    standard    researcher    sm    calculate    lattice    physical    first    successful    experimental    calculations    decays    hadronic    errors    quark    meson    carry    qcd   

 Obiettivo del progetto (Objective)

'The standard model (SM) has been so successful in describing experimental data that searches for new physics effects require predictions with errors at the few percent level. Two particularly important areas are: new physics in B meson decays, and the muon anomalous magnetic moment (called g-2). The dominant theory uncertainty in both comes from hadronic corrections (HC) to SM processes which are very difficult to calculate precisely. Lattice QCD has uses high performance computing to calculate these numerically and has been very successful for many hadronic physics calculations.

This proposal has two parallel themes. The first involves using lattice QCD to calculate HC in B-meson decays. This project will carry out the first calculation of B-meson mixing beyond the standard model with physical quark masses. This eliminates a dominant error and will constrain new physics models. The project will provide the first calculation of form factors for B to D semileptonic decays at physical quark masses. This is used to normalise a rare leptonic decay at LHCb and allows for calculation of an element of the CKM matrix, an important standard model parameter. This calculation will be able to reduce this portion of the error in the experimental rate below other sources, allowing for tighter constraints on new physics. The researcher is already experienced in using these methods and will carry out these calculations independently. The second theme concerns a 3-sigma discrepancy between experiment and theory in g-2. Future experiments at Fermilab and J-PARC will reduce experimental errors to the point where theory errors from HC are dominant. The scientist in charge has performed pioneering work on the g-2 calculation and the researcher will work on improving this and one of the first calculations of the next to leading order component. This has not yet been calculated on the lattice and will involve learning and developing several different techniques.'

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