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Articles de revues sur le sujet « Superconformal QCD »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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1

Brodsky, Stanley. "Supersymmetric and Conformal Features of Hadron Physics." Universe 4, no. 11 (2018): 120. http://dx.doi.org/10.3390/universe4110120.

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The QCD Lagrangian is based on quark and gluonic fields—not squarks nor gluinos. However, one can show that its hadronic eigensolutions conform to a representation of superconformal algebra, reflecting the underlying conformal symmetry of chiral QCD. The eigensolutions of superconformal algebra provide a unified Regge spectroscopy of meson, baryon, and tetraquarks of the same parity and twist as equal-mass members of the same 4-plet representation with a universal Regge slope. The predictions from light-front holography and superconformal algebra can also be extended to mesons, baryons, and te

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2

KUDRYAVTSEV, V. A., and A. N. SEMENOVA. "HADRON AMPLITUDES IN COMPOSITE SUPERCONFORMAL STRING MODEL." International Journal of Modern Physics A 27, no. 29 (2012): 1250170. http://dx.doi.org/10.1142/s0217751x12501709.

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Dynamics of π, K-mesons interactions is formulated in terms of composite superconformal string model. Supersymmetry is defined on two-dimensional world surface only. Dimensionality of target space equals to four. The model treats usual hadron scale which is of order 1 GeV-2, as string scale α′. Intercept of leading meson trajectory equals to ½. Tree amplitudes are free from ghosts in physical state spectrum in accordance with usual classical superstring amplitudes. Interaction of π-mesons in the chiral limit in the model turns out in correspondence with description in terms of chiral Lagrangia

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3

KLEBANOV, IGOR R. "QCD AND STRING THEORY." International Journal of Modern Physics A 21, no. 08n09 (2006): 1831–43. http://dx.doi.org/10.1142/s0217751x06032794.

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This talk begins with some history and basic facts about string theory and its connections with strong interactions. Comparisons of stacks of Dirichlet branes with curved backgrounds produced by them are used to motivate the AdS/CFT correspondence between superconformal gauge theory and string theory on a product of Anti-de Sitter space and a compact manifold. The ensuing duality between semi-classical spinning strings and long gauge theory operators is briefly reviewed. Strongly coupled thermal SYM theory is explored via a black hole in 5-dimensional AdS space, which leads to explicit results

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4

Brodsky, Stanley J. "Color Confinement, Hadron Dynamics, and Hadron Spectroscopy from Light-Front Holography and Superconformal Algebra." Advances in High Energy Physics 2018 (2018): 1–16. http://dx.doi.org/10.1155/2018/7236382.

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The QCD light-front Hamiltonian equation HLFΨ=M2Ψ derived from quantization at fixed LF time τ=t + z/c provides a causal, frame-independent method for computing hadron spectroscopy as well as dynamical observables such as structure functions, transverse momentum distributions, and distribution amplitudes. The QCD Lagrangian with zero quark mass has no explicit mass scale. de Alfaro, Fubini, and Furlan (dAFF) have made an important observation that a mass scale can appear in the equations of motion without affecting the conformal invariance of the action if one adds a term to the Hamiltonian pr

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5

Brodsky, Stanley J., Guy F. de Téramond, Hans Günter Dosch, and Cédric Lorcé. "Meson/baryon/tetraquark supersymmetry from superconformal algebra and light-front holography." International Journal of Modern Physics A 31, no. 19 (2016): 1630029. http://dx.doi.org/10.1142/s0217751x16300295.

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Superconformal algebra leads to remarkable connections between the masses of mesons and baryons of the same parity — supersymmetric relations between the bosonic and fermionic bound states of QCD. Supercharges connect the mesonic eigenstates to their baryonic superpartners, where the mesons have internal angular momentum one unit higher than the baryons: [Formula: see text] The dynamics of the superpartner hadrons also match; for example, the power-law fall-off of the form factors are the same for the mesonic and baryonic superpartners, in agreement with twist counting rules. An effective supe

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6

Brodsky, Stanley J., Alexandre Deur, Guy F. de Téramond, and Hans Günter Dosch. "Light-front holography and superconformal quantum mechanics: A new approach to hadron structure and color confinement." International Journal of Modern Physics: Conference Series 39 (January 2015): 1560081. http://dx.doi.org/10.1142/s2010194515600812.

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A primary question in hadron physics is how the mass scale for hadrons consisting of light quarks, such as the proton, emerges from the QCD Lagrangian even in the limit of zero quark mass. If one requires the effective action which underlies the QCD Lagrangian to remain conformally invariant and extends the formalism of de Alfaro, Fubini and Furlan to light-front Hamiltonian theory, then a unique, color-confining potential with a mass parameter [Formula: see text] emerges. The actual value of the parameter [Formula: see text] is not set by the model – only ratios of hadron masses and other had

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7

Jora, Renata. "Trace and Axial Anomalies on Equal Footing." Advances in High Energy Physics 2020 (January 7, 2020): 1–7. http://dx.doi.org/10.1155/2020/3408734.

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We discussed that for some particular nonsupersymmetric theories, a generalized symmetry that includes both the scale and axial transformations and leads to a single current may contain also a pseudoscalar term. The method, inspired by the superconformal anomalies, has important application for low-energy effective models where it allows the introduction of a single complex glueball field with a scalar and a pseudoscalar component on the same footing with the complex meson nonet fields made of quarks. Both axial and trace anomalies are satisfied in accordance to the meson structure and the QCD

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8

Costantini, Antonio, Luigi Delle Rose, and Mirko Serino. "Sum rules and spectral density flow in QCD and in superconformal theories." EPJ Web of Conferences 80 (2014): 00017. http://dx.doi.org/10.1051/epjconf/20148000017.

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9

Hollowood, Timothy J., Valentin V. Khoze, and Michael P. Mattis. "Summing the instanton series in Script N = 2 superconformal large-N QCD." Journal of High Energy Physics 1999, no. 10 (1999): 019. http://dx.doi.org/10.1088/1126-6708/1999/10/019.

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10

Bilal, Adel, and Frank Ferrari. "The BPS spectra and superconformal points in massive N = 2 supersymmetric QCD." Nuclear Physics B 516, no. 1-2 (1998): 175–228. http://dx.doi.org/10.1016/s0550-3213(98)00052-2.

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11

de Téramond, Guy F. "The Spectroscopy and Form Factors of Nucleon Resonances from Superconformal Quantum Mechanics and Holographic QCD." Few-Body Systems 57, no. 10 (2016): 925–32. http://dx.doi.org/10.1007/s00601-016-1129-6.

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12

Belitsky, A. V., and D. Müller. "Superconformal constraints for QCD conformal anomalies." Physical Review D 65, no. 5 (2002). http://dx.doi.org/10.1103/physrevd.65.054037.

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13

Dosch, Hans Günter, Guy F. de Téramond, and Stanley J. Brodsky. "Superconformal baryon-meson symmetry and light-front holographic QCD." Physical Review D 91, no. 8 (2015). http://dx.doi.org/10.1103/physrevd.91.085016.

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14

Gadde, Abhijit, Elli Pomoni, and Leonardo Rastelli. "Spin chains in $ \mathcal{N} = {2} $ superconformal theories from the $ {\mathbb{Z}_2} $ quiver to superconformal QCD." Journal of High Energy Physics 2012, no. 6 (2012). http://dx.doi.org/10.1007/jhep06(2012)107.

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15

Maruyoshi, Kazunobu, Emily Nardoni, and Jaewon Song. "Dualities of adjoint SQCD and supersymmetry enhancement." Journal of High Energy Physics 2023, no. 9 (2023). http://dx.doi.org/10.1007/jhep09(2023)082.

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Abstract We propose a new dual description of four-dimensional $$ \mathcal{N} $$ N = 1 SU(N) gauge theory with one adjoint (X) and Nf fundamental matters with a superpotential W = TrXp+1. The dual theory consists of the $$ \mathcal{D} $$ D p[SU(N)] Argyres-Douglas theory coupled to SU(N) gauge theory and Nf fundamentals with a superpotential deformation. We study renormalization group fixed points of the Argyres-Douglas dual theories with and without superpotential deformations, and identify the conditions for them to be dual to the fixed points of adjoint SQCD. We check our proposal via match

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16

Baggio, Marco, Vasilis Niarchos, Kyriakos Papadodimas, and Gideon Vos. "Large-N correlation functions in N $$ \mathcal{N} $$ = 2 superconformal QCD." Journal of High Energy Physics 2017, no. 1 (2017). http://dx.doi.org/10.1007/jhep01(2017)101.

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17

Liendo, Pedro, Elli Pomoni, and Leonardo Rastelli. "The complete one-loop dilation operator of $\mathcal{N} = 2$ SuperConformal QCD." Journal of High Energy Physics 2012, no. 7 (2012). http://dx.doi.org/10.1007/jhep07(2012)003.

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18

de Teramond, Guy F., and Stanley J. Brodsky. "Color Symmetry and Confinement as an Underlying Superconformal Structure in Holographic QCD." International Journal of Modern Physics A, April 5, 2024. http://dx.doi.org/10.1142/s0217751x24410070.

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19

Griguolo, L., L. Guerrini, and A. Testa. "Into the wedge of $$ \mathcal{N} $$ = 2 superconformal gauge theories." Journal of High Energy Physics 2025, no. 7 (2025). https://doi.org/10.1007/jhep07(2025)125.

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Abstract We study $$ \frac{1}{4} $$ 1 4 -BPS Wilson loops in four-dimensional SU(N) $$ \mathcal{N} $$ N = 2 super-Yang-Mills theories with conformal matter in an arbitrary representation $$ \mathcal{R} $$ R . These operators are formed of two meridians on the two-sphere separated by an arbitrary opening angle. We conjecture that these observables are encoded in a modification of Pestun’s matrix model. The matrix representation of these operators resembles that of the $$ \frac{1}{2} $$ 1 2 -BPS circular Wilson loop, differing only for a rescaling in the exponent. We compare the matrix model pre

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20

Fraser, Benedict, and S. Prem Kumar. "Large rank Wilson loops in $ \mathcal{N} = 2 $ superconformal QCD at strong coupling." Journal of High Energy Physics 2012, no. 3 (2012). http://dx.doi.org/10.1007/jhep03(2012)077.

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21

Ergun, Behzat, Qianyu Hao, Andrew Neitzke, and Fei Yan. "Factorized class S theories and surface defects." Journal of High Energy Physics 2021, no. 12 (2021). http://dx.doi.org/10.1007/jhep12(2021)041.

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Abstract It is known that some theories of class S are actually factorized into multiple decoupled nontrivial four-dimensional $$ \mathcal{N} $$ N = 2 theories. We propose a way of constructing examples of this phenomenon using the physics of half-BPS surface defects, and check that it works in one simple example: it correctly reproduces a known realization of two copies of $$ \mathcal{N} $$ N = 2 superconformal SU(2) QCD, describing this factorized theory as a class S theory of type A3 on a five-punctured sphere with a twist line. Separately, we also present explicit checks that the Coulomb b

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22

Baggio, Marco, Vasilis Niarchos, and Kyriakos Papadodimas. "On exact correlation functions in SU(N) N = 2 $$ \mathcal{N}=2 $$ superconformal QCD." Journal of High Energy Physics 2015, no. 11 (2015). http://dx.doi.org/10.1007/jhep11(2015)198.

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23

Brodsky, Stanley J. "Advances in Light-Front QCD: Supersymmetric Properties of Hadron Physics from Light-Front Holography and Superconformal Algebra." Few-Body Systems 58, no. 3 (2017). http://dx.doi.org/10.1007/s00601-017-1292-4.

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24

Brodsky, Stanley J. "Supersymmetric Properties of Hadron Physics from Light-Front Holography and Superconformal Algebra and other Advances in Light-Front QCD." Few-Body Systems 59, no. 3 (2018). http://dx.doi.org/10.1007/s00601-018-1342-6.

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25

Paul, Hynek, Eric Perlmutter, and Himanshu Raj. "Exact large charge in $$ \mathcal{N} $$ = 4 SYM and semiclassical string theory." Journal of High Energy Physics 2023, no. 8 (2023). http://dx.doi.org/10.1007/jhep08(2023)078.

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Abstract In four-dimensional $$ \mathcal{N} $$ N = 4 super Yang-Mills theory with gauge group SU(N), we present a closed-form solution for a family of integrated four-point functions involving stress tensor multiplet composites of arbitrary R-charge. These integrated correlators are shown to be equivalent to a one-dimensional semi-infinite lattice of harmonic oscillators with nearest-neighbor interactions, evolving over the fundamental domain of SL(2, ℤ). The solution, exceptionally simple in an SL(2, ℤ)-invariant eigenbasis, is exact in the R-charge p, rank N, and complexified gauge coupling

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26

Grimminger, Julius F., William Harding, and Noppadol Mekareeya. "Generalised-edged quivers and global forms." Journal of High Energy Physics 2025, no. 3 (2025). https://doi.org/10.1007/jhep03(2025)021.

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Abstract Non-simply laced quivers, despite the lack of complete Lagrangian descriptions, play an important role in characterising moduli spaces of supersymmetric field theories. Notably, the moduli space of instantons in non-simply laced gauge groups can be understood by means of such quivers. We generalise the notion of non-simply laced unitary quivers to those whose edges carry two labels (p, q), dubbed (p, q)-edged quivers. The special case of (p, 1) corresponds to a conventional non-simply laced edge studied in the literature. In the case of unframed (p, q)-edged quivers, we show how to pa

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