Results 41 to 50 of about 47,637 (158)

Vacuum energy in the effective field theory of general relativity. II. Inclusion of fermions and a comment on the QCD contribution [PDF]

Physical Review D, 2019
Recently in the framework of a two-loop order calculation for an effective field theory of scalar and vector fields interacting with the metric field we have shown that for the cosmological constant term which is fixed by the condition of vanishing vacuum energy the graviton remains massless and there exists a self-consistent effective field theory of ...
J. Gegelia, Ulf-G. Meißner
openaire   +3 more sources

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

Quantum Chromodynamics

, 2006
After a brief historical review of the emergence of QCD as the quantum field theory of strong interactions, the basic notions of colour and gauge invariance are introduced leading to the QCD Lagrangian.
Ecker, Gerhard
core   +1 more source

More on the infrared renormalization group limit cycle in QCD [PDF]

, 2006
We present a detailed study of the recently conjectured infrared renormalization group limit cycle in QCD using chiral effective field theory. It was conjectured that small increases in the up and down quark masses can move QCD to the critical trajectory
A. Nogga, D.B. Kaplan, D.J. Gross, E. Braaten, E. Braaten, E. Epelbaum, E. Epelbaum, E. Epelbaum, E. Epelbaum, E. Epelbaum, E. Epelbaum, G.V. Skorniakov, H.-W. Hammer, H.D. Politzer, H.W. Grießhammer, I.R. Afnan, J. Gasser, J. Gasser, K.G. Wilson, K.G. Wilson, K.G. Wilson, M.C. Birse, N. Fettes, P.F. Bedaque, P.F. Bedaque, P.F. Bedaque, P.F. Bedaque, P.F. Bedaque, R.F. Mohr, S. Albeverio, S. Weinberg, S. Weinberg, S. Weinberg, S.R. Beane, S.R. Beane, S.R. Beane, S.R. Beane, T. Mehen, U. Kolck van, U.-G. Meißner, V. Bernard, V. Efimov, V.N. Efimov, V.N. Efimov   +43 more
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The DNA of Calabi–Yau Hypersurfaces

Fortschritte der Physik, Volume 74, Issue 2, February 2026.
Abstract Genetic Algorithms are implemented for triangulations of four‐dimensional reflexive polytopes, which induce Calabi–Yau threefold hypersurfaces via Batyrev's construction. These algorithms are shown to efficiently optimize physical observables such as axion decay constants or axion–photon couplings in string theory compactifications.
Nate MacFadden, Andreas Schachner, Elijah Sheridan   +2 more
wiley   +1 more source

Effective Field Theories for Heavy Quarkonium

, 2005
We briefly review how nonrelativistic effective field theories give us a definition of the QCD potentials and a coherent field theory derived quantum mechanical scheme to calculate the properties of bound states made by two or more heavy quarks.
A Barchielli, A Barchielli, A Czarnecki, A Pineda, A Pineda, A Pineda, A Pineda, AV Manohar, BA Kniehl, D Gromes, E Eichten, GS Bali, GT Bodwin, H Leutwyler, MB Voloshin, N Brambilla, N Brambilla, N Brambilla, N Brambilla, N Brambilla, N Brambilla, N Brambilla, N Brambilla, N Brambilla, N Brambilla, N Brambilla, N Brambilla, N. Brambilla, WE Caswell, Y Koma   +29 more
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Describing the Global Gravity Field of Mars With Lithospheric Flexure and Deep Mantle Flow

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract The volcanic complex Tharsis Region on Mars is known for its numerous volcanoes on top of the crust, elevated topography (doming), and a long‐wavelength gravity anomaly correlated with the region. Flexural modeling of the lithosphere has commonly been used to understand the relationship between observed topography, crustal structure, and ...
Bart Root, Weilun Qin, Youandi van der Tang, Cedric Thieulot   +3 more
wiley   +1 more source

Composite Inflation from Super Yang-Mills, Orientifold and One-Flavor QCD

, 2012
Recent investigations have shown that inflation can be driven by four-dimensional strongly interacting theories non-minimally coupled to gravity. We explore this paradigm further by considering composite inflation driven by orientifold field theories ...
Channuie, P., Joergensen, J. J., Sannino, F.   +2 more
core   +1 more source

Effective field theories for heavy quarkonium [PDF]

, 2004
We review recent theoretical developments in heavy quarkonium physics from the point of view of Effective Field Theories of QCD. We discuss Non-Relativistic QCD and concentrate on potential Non-Relativistic QCD.
Antonio Pineda, Antonio Vairo, Barbieri, R., Barbieri, R., Barchielli, A., Bauer, C. W., Billoire, A., Bodwin, G. T., Brambilla, N., Brambilla, N., Brambilla, N., Brambilla, N., Brambilla, N., Brambilla, N., Brodsky, S. J., Caswell, W. E., Catani, S., Czarnecki, A., Czarnecki, A., Fadin, V. S., Fleming, S., Fleming, S., Hoang, A. H., Hoang, A. H., Hoang, A. H., Hoang, A. H., Joan Soto, Kniehl, B. A., Kniehl, B. A., Kniehl, B. A., Kniehl, B. A., Kniehl, B. A., Kronfeld, A. S., Källen, G., Lee, T., Lee, T., Leutwyler, H., Lucini, B., Lüscher, M., Lüscher, M., Manohar, A. V., Manohar, A. V., Manohar, A. V., Melnikov, K., Melnikov, K., Messiah, A., Nora Brambilla, Penin, A. A., Penin, A. A., Peskin, M. E., Photiadis, D. M., Pineda, A., Pineda, A., Pineda, A., Pineda, A., Pineda, A., Pineda, A., Pineda, A., Pineda, A., Pineda, A., Pineda, A., Pineda, A., Pineda, A., Schröder, Y., Susskind, L., Vairo, A., Vairo, A., Voloshin, M. B., Yndurain, F. J.   +68 more
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Interplay of nuclear physics, effective field theories, phenomenology, and lattice QCD in neutrino physics

EPJ Web of Conferences, 2022
Experiments in neutrino physics cover a wide range—from deep inelastic scattering, over long base-line oscillation experiments and low-energy coherent neutrino–nucleus scattering (CEνNS), to searches for neutrinoless double β decay (0νββ)—yet in all cases a key aspect in interpreting the results concerns understanding neutrino–nucleus interactions.
openaire   +3 more sources