Stéphan Narison
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View article: Revisiting the muon anomaly from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"> <mml:mrow> <mml:msup> <mml:mi>e</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:msup> <mml:mi>e</mml:mi> <mml:mo>−</mml:mo> </mml:msup> <mml:mo>→</mml:mo> </mml:mrow> </mml:math> hadrons
Revisiting the muon anomaly from hadrons Open
International audience
View article: Light scalar quarkonia from QCD Laplace sum rule at higher order
Light scalar quarkonia from QCD Laplace sum rule at higher order Open
We review our estimations on the light scalar $\bar{q}q$, $(\bar{q}q')(\bar{q'}q)$ and $\overline{qq'}qq'$ ($q,q'\equiv u,d,s$) states from relativistic Laplace sum rule (LSR) within stability criteria and including higher order perturbati…
View article: QCD condensates and $\alpha_s$ from $\tau$-decay: Summary
QCD condensates and $\alpha_s$ from $\tau$-decay: Summary Open
In this talk, I summarize the recent determinations in Ref.[1] of the QCD condensates and $\alpha_s$ within the SVZ expansion using the ratio of Laplace sum rule (LSR) ${\cal R}_{10}^A(\tau)$ and $\tau$-like moments ${\cal R}_{n,A},\, {\ca…
View article: $2^{++}$ Di-gluonium from LSR at higher order
$2^{++}$ Di-gluonium from LSR at higher order Open
We improve the determination of the mass and coupling of the $2^{++}$ tensor di-gluonium by using relativistic QCD Laplace sum rules (LSR). In so doing, we evaluate the next-to-leading order (NLO) corrections to the perturbative (PT) and $…
View article: Light scalar quarkonia from Laplace sum rule at NLO
Light scalar quarkonia from Laplace sum rule at NLO Open
We review our results on light scalar quarkonia ($\bar{q}q$ and four-quark states) from (inverse) QCD Laplace sum rules (LSR) and their ratios ${\cal R}$ within stability criteria and including higher order perturbative (PT) corrections up…
View article: QCD condensates and $α_s$ from $τ$-decay
QCD condensates and $α_s$ from $τ$-decay Open
We improve the determinations of the QCD condensates within the SVZ expansion in the axial-vector (A) channel using the ratio of Laplace sum rule (LSR) ${\cal R}_{10}^A(τ)$ within stability criteria and $τ$-like higher moments ${R}_{n,A}$ …
View article: QCD parameters and SM-high precisions from $e^+e^-\to$ Hadrons : Summary
QCD parameters and SM-high precisions from $e^+e^-\to$ Hadrons : Summary Open
In this talk, I summarize the results obtained recently in Ref.\,\cite{SNe} using the PDG 22 compilation of the $e^+e^-\to$ Hadrons $\oplus$ the recent CMD3 data for the pion form factor. Using the gluon condensate $\langle α_s G^2\rangle=…
View article: Laplace Sum Rules in Quantum ChromoDynamics
Laplace Sum Rules in Quantum ChromoDynamics Open
We shortly review some applications of the (inverse) Laplace (LSR) transform sum rules in Quantum ChromoDynamics (QCD) for extracting the fundamental QCD parameters (coupling constant $α_s$, quark and gluon condensates) and the hadron prop…
View article: QCD parameters and SM-high precisions from e+e- to Hadrons
QCD parameters and SM-high precisions from e+e- to Hadrons Open
Using the PDG 22 compilation of the $e^+e^-\to$ Hadrons $\oplus$ the recent CMD3 data for the pion form factor and the value of gluon condensate $<α_s G^2>$ from heavy quarkonia, we extract the value of the four-quark condensate : $ρα_s<\b…
View article: Scrutinizing the Light Scalar Quarkonia from LSR at Higher Orders
Scrutinizing the Light Scalar Quarkonia from LSR at Higher Orders Open
We scrutinize, improve some determinations of the masses and couplings of light scalar quarkonia ($\bar qq$ and four-quark states) and present new results for the $π^+π^-,K^+K^-,\dots$ molecules using QCD Laplace Sum Rule (LSR) truncated a…
View article: Pseudoscalar and Vector $T_{QQ\bar q\bar q'}$ Spectra and Couplings from LSR at NLO
Pseudoscalar and Vector $T_{QQ\bar q\bar q'}$ Spectra and Couplings from LSR at NLO Open
We present systematic and improved estimates of the masses and couplings of the $(0^-)$ and $(1^-)$ $T_{QQ\bar q\bar q'}$ states ($Q= c,b;q,q'= u,d,s$) using QCD Laplace sum rules (LSR) and their ratios R within $\tau$ and $t_c$-stabilitie…
View article: 1+ XTZ States within QCD Sum Rules
1+ XTZ States within QCD Sum Rules Open
We present improved estimates of the couplings, masses and mass ratios of the $X_Q, Z_Q$ and $T_{QQ\bar q\bar q'}$ states using (inverse) QCD Laplace sum rules (LSR), their ratios ${\cal R}$ and double ratios (DRSR), within stability crite…
View article: Index
Index Open
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View article: Chiral perturbation theory
Chiral perturbation theory Open
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View article: About Stephan Narison
About Stephan Narison Open
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View article: Tests of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>Z</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math>-like Laplace sum rule results using finite energy sum rule at NLO
Tests of the -like Laplace sum rule results using finite energy sum rule at NLO Open
International audience
View article: Tests of the Z_c-like Laplace Sum Rule (LSR) results using FESR at NLO
Tests of the Z_c-like Laplace Sum Rule (LSR) results using FESR at NLO Open
In this note, we use local duality Finite Energy Sum Rule (FESR) to test the validity of the Laplace sum rules (LSR) results truncated at the dimension-six condensates for the estimates of the masses and couplings of the Z_c-like ground st…
View article: Slope of the topological charge, proton spin and $0^{-+}$ pseudoscalar di-gluonia spectra
Slope of the topological charge, proton spin and $0^{-+}$ pseudoscalar di-gluonia spectra Open
We discuss the topics mentioned in the title by scrutinizing and improving the $0^{-+}$ di-gluonia sum rules within the standard SVZ-expansion at N2LO without instantons. First, we reconsider the estimate of the slope of the topological ch…
View article: Where are the $0^{-+}$ pseudoscalar di-gluonia ?
Where are the $0^{-+}$ pseudoscalar di-gluonia ? Open
In this paper, we attempt to answer the question adressed in the title by scrutinizing and improving the $0^{-+}$ pseudoscalar di-gluonia/glueballs sum rules within the standard SVZ-expansion at N2LO without instantons}. In so doing, we w…
View article: Slope of the topological charge, proton spin and $0^{-+}$ pseudoscalar\n di-gluonia spectra
Slope of the topological charge, proton spin and $0^{-+}$ pseudoscalar\n di-gluonia spectra Open
We discuss the topics mentioned in the title by scrutinizing and improving\nthe $0^{-+}$ di-gluonia sum rules within the standard SVZ-expansion at N2LO\nwithout instantons. First, we reconsider the estimate of the slope of the\ntopological…
View article: Di-Gluonium Sum Rules, Conformal Charge and I = 0 Scalar Mesons
Di-Gluonium Sum Rules, Conformal Charge and I = 0 Scalar Mesons Open
We revisit, improve and confirm our previous results [1-3] from the scalar digluonium sum rules within the standard SVZ-expansion at N2LO {\it without instantons} and {\it beyond the minimal duality ansatz} : one resonance $\oplus$ QCD con…