Results 51 to 60 of about 4,864,213 (340)

Quasiparticle Properties in Effective Field Theory [PDF]

, 2002
The quasiparticle concept is an important tool for the description of many-body systems. We study the quasiparticle properties for dilute Fermi systems with short-ranged, repulsive interactions using effective field theory.
Baker, Baker, Beane, Bedaque, Bedaque, Bedaque, Bernard, Bishop, Braaten, Braaten, Bund, DeMarco, Efimov, Fetter, Furnstahl, Furnstahl, Galitskii, Gasser, H.-W. Hammer, Hammer, Kaplan, Kaplan, L. Platter, Landau, Landau, Landau, Lepage, Lepage, Luttinger, Meißner, Migdal, Negele, Nozieres, Sartor, Steele, Truscott, U.-G. Meißner, van Kolck, Weinberg   +38 more
core   +2 more sources

Goldstone bosons and fluctuating hydrodynamics with dipole and momentum conservation

Journal of High Energy Physics, 2023
We develop a Schwinger-Keldysh effective field theory describing the hydrodynamics of a fluid with conserved charge and dipole moments, together with conserved momentum.
Paolo Glorioso, Xiaoyang Huang, Jinkang Guo, Joaquin F. Rodriguez-Nieva, Andrew Lucas   +4 more
doaj   +1 more source

Convex Geometry Perspective on the (Standard Model) Effective Field Theory Space.

Physical Review Letters, 2020
We present a convex geometry perspective to the effective field theory (EFT) parameter space. We show that the second s derivatives of the forward EFT amplitudes form a convex cone, whose extremal rays are closely connected with states in the UV theory ...
Cen Zhang, Shuang-Yong Zhou
semanticscholar   +1 more source

ΛΛ6He in cluster effective field theory

EPJ Web of Conferences, 2016
The bound state of ΛΛ6He is studied as a three-body (ΛΛα) system in a cluster effective field theory at leading order. We find that the system exhibits the limit cycle that is associated with the formation of bound states called the Efimov states.
Ando S.-I., Oh Y.
doaj   +1 more source

Low-energy effective field theory below the electroweak scale: matching at one loop [PDF]

Journal of High Energy Physics, 2019
We compute the one-loop matching between the Standard Model Effective Field Theory and the low-energy effective field theory below the electroweak scale, where the heavy gauge bosons, the Higgs particle, and the top quark are integrated out. The complete
W. Dekens, P. Stoffer
semanticscholar   +1 more source

Sterile neutrinos and neutrinoless double beta decay in effective field theory [PDF]

, 2020
We investigate neutrinoless double beta decay (0 νββ ) in the presence of sterile neutrinos with Majorana mass terms. These gauge-singlet fields are allowed to interact with Standard-Model (SM) fields via renormalizable Yukawa couplings as well as higher-
W. Dekens, J. Vries, K. Fuyuto, E. Mereghetti, G. Zhou   +4 more
semanticscholar   +1 more source

A review on partial-wave dynamics with chiral effective field theory and dispersion relation [PDF]

Reports on progress in physics. Physical Society, 2020
The description of strong interaction physics of low-lying resonances is out of the valid range of perturbative QCD. Chiral effective field theories (EFTs) have been developed to tackle the issue.
D. Yao, L. Dai, Han-qing Zheng, Zhi-Yong Zhou   +3 more
semanticscholar   +1 more source

Effective field theory

, 1995
I give a brief review of effective field theory, disscussing the contribution of Feza G\"ursey in particular and focusing on the literature I am most familiar with.Comment: 17 pages, no figs, macros appended, plain ...
A. Polyakov, A. Weldon, A. Zee, A. Zee, A. Zee, A. Zee, A.M. Tikofsky, B.I. Halperin, E. Brezin, E. Brézin, E. Brézin, E. Brézin, E. Brézin, E. Witten, F. Giirsey, F. Gürsey, F. Wilczek, G. Kotliar, I. Affleck, J. Frbhlich, J. Goldstone, J. Kogut, J. Schwinger, J. Wess, J.C. Collins, K. Nishijima, K. Yang, L.B. Ioffe, M. Gell-Mann, M.V. Terentive, P. Chang, R. Aviv, R. Aviv, R.J. Glauber, S. Adler, S. Adler, S. Weinberg, S. Weinberg, S. Weinberg, S.M. Barr, X.G. Wen, X.G. Wen, X.G. Wen, X.G. Wen   +43 more
core   +1 more source

CP-violating axion interactions in effective field theory

Journal of High Energy Physics, 2022
Axions are introduced to explain the observed smallness of the θ ¯ $$ \overline{\theta} $$ term of QCD. Standard Model extensions typically contain new sources of CP violation, for instance to account for the baryon asymmetry of the universe.
Wouter Dekens, Jordy de Vries, Sachin Shain   +2 more
doaj   +1 more source

D-brane effective field theory from string field theory

, 2000
Open string field theory is considered as a tool for deriving the effective action for the massless or tachyonic fields living on D-branes. Some simple calculations are performed in open bosonic string field theory which validate this approach. The level
Andreev, Bain, Banks, Bardakci, Berkooz, Berkovits, Berkovits, Bogojevic, Chepelev, Cremmer, Douglas, Gaberdiel, Gava, Gross, Gross, Gross, Hashimoto, Hashimoto, Horava, Kabat, Kitazawa, Kostelecky, Kostelecky, Kostelecky, Leclair, Leigh, Myers, Okawa, Preitschopf, Samuel, Scherk, Sen, Sen, Sen, Taylor, Taylor, Troost, Tseytlin, Tseytlin, Tseytlin, van Baal, Washington Taylor, Wendt, Witten, Witten, Witten, Zwiebach   +46 more
core   +1 more source