122 citations · 872 across the 34 of their papers we have counts for
36 papers · 1 filter
Beyond Borel Windows: A Systematic Optimization Framework for QCD Sum Rules
Raphael M. Albuquerque
We propose a systematic optimization framework for determining the sum rule window in QCD Laplace sum rules. Instead of relying primarily on fixed convergence percentages and visua…
Fully and Doubly-heavy four-quarks within QCD Laplace sum rule
R. M. Albuquerque, S. Narison, A. Rabemananjara +1
We present a review of our results for the masses and couplings of the scalar fully heavy four-quarks and tetraquarks states from QCD…
Scrutinizing the Light Scalar Quarkonia from LSR at Higher Orders
R. Albuquerque, S. Narison, D. Rabetiarivony
We scrutinize, improve some determinations of the masses and couplings of light scalar quarkonia ( and four-quark states) and present new results for the $π^+π^-,K^+K^-,\d…
Pseudoscalar and Vector Spectra and Couplings from LSR at NLO
R. Albuquerque, S. Narison, D. Rabetiarivony
We present systematic and improved estimates of the masses and couplings of the and states () using QCD Laplace sum rules…
1+ XTZ States within QCD Sum Rules
R. M. Albuquerque, S. Narison, D. Rabetiarivony
We present improved estimates of the couplings, masses and mass ratios of the and states using (inverse) QCD Laplace sum rules (LSR), their ratios…
XTZ states from QCD spectral sum rules
R. M. Albuquerque, S. Narison, D. Rabetiarivony
We review our results in\,\cite{ANR22} for the masses and couplings of states from (inverse) QCD Laplace sum rule (LSR), their ratios and double…
Tests of the Z_c-like Laplace Sum Rule (LSR) results using FESR at NLO
R. M. Albuquerque, S. Narison, D. Rabetiarivony
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 esti…
Improved XTZ masses and mass ratios from Laplace Sum Rules at NLO
R. Albuquerque, S. Narison, D. Rabetiarivony
We present improved estimates of the couplings, masses and mass ratios of the Z_Q,X_Q and T_{QQqq} states using QCD Laplace sum rules (LSR), their ratios R and double ratios DRSR w…
The New Charm-Strange Resonances in the D^- K^+ Channel
R. M. Albuquerque, S. Narison, D. Rabetiarivony +1
We evaluate the masses and decay constants of the and open-charm tetraquarks and molecular states from QCD spectral sum rules (QSSR) by using QCD…
Doubly hidden molecules and tetraquarks states from QCD at NLO
R. M. Albuquerque, S. Narison, A. Rabemananjara +2
Motivated by the LHCb-group discovery of exotic hadrons in the range (6.2 6.9) GeV, we present new results for the masses and couplings of fully heavy $(\bar{Q}Q)(Q…
Z_c -like spectra from QCD Laplace sum rules at NLO
R. M. Albuquerque, S. Narison, D. Rabetiarivony
We present a global analysis of the observed Z_c, Z_cs and future Z_css-like spectra using the inverse Laplace transform (LSR) version of QCD spectral sum rules (QSSR) within stabi…
(2900) and invariant mass from QCD Laplace sum rules at NLO
R. M. Albuquerque, S. Narison, D. Rabetiarivony +1
We revisit, improve and complete some recent estimates of the and open charm tetraquarks and the corresponding molecules masses and decay consta…
Doubly-hidden scalar heavy molecules and tetraquarks states from QCD at NLO
R. M. Albuquerque, S. Narison, A. Rabemananjara +2
Alerted by the recent LHCb discovery of exotic hadrons in the range (6.2 -- 6.9) GeV, we present new results for the doubly-hidden scalar heavy charm and beau…
QCD Sum Rules Approach to the and States
Raphael M. Albuquerque, Jorgivan M. Dias, K. P. Khemchandani +4
In the past decade, due to the experimental observation of many charmonium-like states, there has been a revival of hadron spectroscopy. In particular, the experimental observation…
XYZ -- spectra from QCD Laplace Sum Rules at Higher Orders
R. Albuquerque, S. Narison, A. Rabemananjara +2
We review our results in Refs.[1,2] for the masses and couplings of heavy-light DD(BB)-like molecules and (Qq)(Qq)-like four-quark states from relativistic QCD Laplace sum rules (L…
0+ and 1+ heavy-light exotic mesons at N2LO in the chiral limit
R. M Albuquerque, S. Narison, F. Fanomezana +3
We use QCD spectral sum rules (QSSR) and the factorization properties of molecule and four-quark currents to estimate the masses and couplings of the 0+ and 1+ molecules and four-q…
XYZ - SU3 Breakings from Laplace Sum Rule at Higher Orders: Summary
R. Albuquerque, S. Narison, D. Rabetiarivony +1
This talk reviews and summarizes some of our results in [1] on XYZ- SU3 Breakings obtained from QCD Laplace Sum Rules (LSR) at next-to-next-leading order (N2LO) of perturbative (PT…
XYZ-SU3 Breakings from Laplace Sum Rules at Higher Orders
R. Albuquerque, S. Narison, D. Rabetiarivony +1
We present new compact integrated expressions of SU3 breaking corrections to QCD spectral functions of heavy-light molecules and four-quark XYZ-like states at lowest order (LO) of…
Heavy-Light Exotics from QCD Laplace Sum Rules at N2LO in the chiral limit
R. M Albuquerque, S. Narison, F. Fanomezana +3
These talks review and summarize our results in [1,2] on -like spectra obtained from QCD Laplace Sum Rules in the chiral limit at next-to-next-leading order (N2LO) of perturba…
X, Y and Z States
M. Nielsen, R. M. Albuquerque, J. M. Dias +4
Many new states in the charmonium mass region were recently discovered by BaBar, Belle, CLEO-c, CDF, D0, BESIII, LHCb and CMS Collaborations. We use the QCD Sum Rule approach to st…
XYZ-like Spectra from Laplace Sum Rule at N2LO in the Chiral Limit
R. Albuquerque, S. Narison, F. Fanomezana +3
We present new compact integrated expressions of QCD spectral functions of heavy-light molecules and four-quark -like states at lowest order (LO) of perturbative (PT) QCD and…
Nature of the X(5568) : a critical Laplace sum rule analysis at N2LO
R. Albuquerque, S. Narison, A. Rabemananjara +1
We scrutinize recent QCD spectral sum rules (QSSR) results to lowest order (LO) predicting the masses of the BK molecule and (su)\bar(bd) four-quark states. We improve these result…
Production of the Y(4260) State in B Meson Decay
R. M. Albuquerque, M. Nielsen, C. M. Zanetti
We calculate the branching ratio for the production of the meson in the decay . We use QCD sum rules approach and we consider the to be a mi…
CHARM 2013: X(4260) as a Mixed Charmonium-Tetraquark State
R. M. Albuquerque, J. M. Dias, M. Nielsen +1
Using the QCD sum rule approach we study the X(4260) state assuming that it can be described by a mixed charmonium-tetraquark current with quantum numbers. For the…