Published November 2015
| Version v1
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Perturbative versus non-perturbative decoupling of heavy quarks
Creators
- 1. Wuppertal Univ. (Germany). Dept. of Physics
- 2. Brookhaven National Laboratory, Upton, NY (United States)
- 3. CaSToRC, Cyl Athalassa Campus, Nicosia (Cyprus)
- 4. Humboldt Univ. Berlin (Germany). Inst. fuer Physik
- 5. Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). John von Neumann-Inst. fuer Computing NIC
Description
We simulate a theory with Nf=2 heavy quarks of mass M. At energies much smaller than M the heavy quarks decouple and the theory can be described by an effective theory which is a pure gauge theory to leading order in 1/M. We present results for the mass dependence of ratios such as t0(M)/t0(0). We compute these ratios from simulations and compare them to the perturbative prediction. The latter relies on a factorisation formula for the ratios which is valid to leading order in 1/M.
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47081460.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 7 p.
- ISSN
- 0418-9833
- Report number
- DESY--15-219
Conference
- Title
- 33. International symposium on lattice field theory
- Dates
- 14-18 Jul 2015
- Place
- Kobe (Japan)
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 47081460
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- C QUARKS; COMPUTERIZED SIMULATION; DECOUPLING; FACTORIZATION; FLAVOR MODEL; LAGRANGIAN FIELD THEORY; LATTICE FIELD THEORY; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; REST MASS; UNIFIED GAUGE MODELS
- Descriptors DEC
- CHARM PARTICLES; COMPOSITE MODELS; CONSTRUCTIVE FIELD THEORY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; MASS; MATHEMATICAL MODELS; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL; QUARKS; SIMULATION
Optional Information
- Collaborations
- ALPHA Collaboration
- Secondary number(s)
- WUB--15-07; HU-EP--15/55