Results 51 to 60 of about 73,713 (196)

D-branes in Unoriented Non-critical Strings and Duality in SO(N) and Sp(N) Gauge Theories [PDF]

, 2007
We exhibit exact conformal field theory descriptions of SO(N) and Sp(N) pairs of Seiberg-dual gauge theories within string theory. The N=1 gauge theories with flavour are realized as low energy limits of the worldvolume theories on D-branes in unoriented
A. Fotopoulos, A. Giveon, A. Giveon, A.B. Zamolodchikov, C. Ahn, J. Teschner, Jan Troost, K. Hori, K. Intriligator, M. Atiyah, S. Murthy, S.K. Ashok, Sameer Murthy, Sujay K Ashok, T. Eguchi, V. Fateev   +15 more
core   +1 more source

Froggatt-Nielsen meets the SMEFT

Journal of High Energy Physics
We study the matching of Froggatt-Nielsen theories of flavour onto the Standard Model Effective Field Theory (SMEFT), upon integrating out a heavy Beyond-the-Standard-Model (BSM) scalar ‘flavon’ whose vacuum expectation value breaks an Abelian flavour ...
Eetu Loisa, Jim Talbert
doaj   +1 more source

A 4 modular flavour model of quark mass hierarchies close to the fixed point τ = i∞

Journal of High Energy Physics, 2023
We study the possibility to generate the quark mass hierarchies as well as the CKM quark mixing and CP violation without fine-tuning in a quark flavour model with modular A 4 symmetry.
S. T. Petcov, M. Tanimoto
doaj   +1 more source

The scalar spectrum of many-flavour QCD

, 2013
The LatKMI collaboration is studying systematically the dynamical properties of N_f = 4,8,12,16 SU(3) gauge theories using lattice simulations with (HISQ) staggered fermions.
Aoki, Yasumichi, Aoyama, Tatsumi, Kurachi, Masafumi, Maskawa, Toshihide, Nagai, Kei-ichi, Ohki, Hiroshi, Rinaldi, Enrico, Shibata, Akihiro, Yamawaki, Koichi, Yamazaki, Takeshi   +9 more
core   +1 more source

Weak coupling large-N transitions at finite baryon density [PDF]

, 2011
We study thermodynamics of free SU(N) gauge theory with a large number of colours and flavours on a three-sphere, in the presence of a baryon number chemical potential.
A Chamblin, A Hanany, A Karch, A Karch, A Karch, B Skagerstam, B Sundborg, B Svetitsky, C Núñez, D Gross, D Mateos, D Sen, D Sen, D Yamada, D Yamada, E Witten, E Witten, E Witten, F Bigazzi, G Festuccia, G Veneziano, G ’t Hooft, H-Y Chen, HJ Schnitzer, I Kirsch, IK Kostov, J Babington, JM Maldacena, Joyce C. Myers, L McLerran, L Paniak, L Yaffe, M Ammon, M Cvetič, MA Luty, N Dorey, N Dorey, O Aharony, O Aharony, O Aharony, P Basu, R Casero, R Dijkgraaf, RF Dashen, S Azakov, S Hands, S Hands, S Kobayashi, S. Prem Kumar, SA Hartnoll, SR Wadia, SS Gubser, T Hollowood, Timothy J. Hollowood, TJ Hollowood, VA Kazakov, Y Hidaka   +56 more
core   +4 more sources

Flavor structures of quarks and leptons from flipped SU(5) GUT with A 4 modular flavor symmetry

Journal of High Energy Physics, 2023
We propose to generate the flavor structures of the Standard Model plus neutrinos from flipped SU(5) GUT with A 4 modular flavor symmetry. Possible way to assign different moduli values for quarks and leptons in modular GUT scheme is discussed.
Xiao Kang Du, Fei Wang
doaj   +1 more source

Dark Matter and Dark Energy via Non-Perturbative (Flavour) Vacua

, 2012
A non-perturbative field theoretical approach to flavour physics (Blasone-Vitiello formalism) has been shown to imply a highly non-trivial vacuum state.
A. Liddle, B. Pontecorvo, B. Pontecorvo, C. Giunti, E. A. Calzetta, H. Umezawa, L. Amendola, M. E. Peskin, N. D. Birrell, R. Haag, R. F. Streater, T. Borne, Walter Tarantino   +12 more
core   +1 more source

Residual flavor symmetry breaking in the landscape of modular flavor models

Journal of High Energy Physics, 2022
We study a symmetry breaking of residual flavor symmetries realized at fixed points of the moduli space. In the supersymmetric modular invariant theories, a small departure of the modulus from fixed points is required to realize fermion mass hierarchies ...
Keiya Ishiguro, Hiroshi Okada, Hajime Otsuka   +2 more
doaj   +1 more source

The Structure of the Aoki Phase at Weak Coupling [PDF]

, 2001
A new method to determine the phase diagram of certain lattice fermionic field theories in the weakly coupled regime is presented. This method involves a new type of weak coupling expansion which is multiplicative rather than additive in nature and ...
Kenna, R., Pinto, C., Sexton, J. C.
core   +6 more sources

An analytic analysis of the pion decay constant in three-flavoured chiral perturbation theory [PDF]

The European Physical Journal C, 2017
A representation of the two-loop contribution to the pion decay constant in $SU(3)$ chiral perturbation theory is presented. The result is analytic upto the contribution of the three (different) mass sunset integrals, for which an expansion in their external momentum has been taken.
Ananthanarayan, B., Bijnens, Johan, Ghosh, Shayan   +2 more
openaire   +4 more sources