Search Results - "Albuquerque, R.M."
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Light scalar quarkonia from Laplace sum rule at NLO
Published in Nuclear and particle physics proceedings (01-12-2024)“…We review our results on light scalar quarkonia (q¯q and four-quark states) from (inverse) QCD Laplace sum rules (LSR) and their ratios R within stability…”
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(Q¯q¯Qq) from QCD Laplace sum rule
Published in Nuclear and particle physics proceedings (01-04-2024)“…We present a review of our recent works on heavy-light exotic states, with new compact integrated expressions of the spectral functions at lowest order (LO) of…”
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(Q¯Q¯)(QQ) and TQQ within QCD Laplace sum rules
Published in Nuclear and particle physics proceedings (01-04-2024)“…We present a review of our results for the masses and couplings of the scalar fully heavy four-quarks and TQQq¯q¯′(JP=0±,1±) tetraquarks states from (inverse)…”
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Production of the Y(4260) state in B meson decay
Published in Physics letters. B (30-07-2015)“…We calculate the branching ratio for the production of the meson Y(4260) in the decay B−→Y(4260)K−. We use QCD sum rules approach and we consider the Y(4260)…”
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QCD sum rules study of the charmonium Y mesons
Published in Nuclear physics. A (01-01-2009)Get full text
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Mass splitting of heavy-baryons from QCD sum rules
Published in EPJ Web of conferences (2010)“…We extract the heavy-baryons mass-splittings due to S U (3) breaking using double ratios of QCD sum rules. We evaluate the masses of the strange-heavy baryons…”
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7
( Q ¯ Q ¯ ) ( Q Q ) and T within QCD Laplace sum rules
Published in Nuclear and particle physics proceedings (01-04-2024)Get full text
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8
1+ XTZ States within QCD Sum Rules
Published in Nuclear and particle physics proceedings (01-03-2023)“…We present improved estimates of the couplings, masses and mass ratios of the XQ, ZQ and TQQq¯q¯′ states (Q≡c,b; q,q′≡u,d,s) using (inverse) QCD Laplace sum…”
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0+ XTZ states from QCD spectral sum rules
Published in Nuclear and particle physics proceedings (01-03-2023)“…We review our results in [1] for the masses and couplings of Tccqq′ (JP=0+) states from (inverse) QCD Laplace sum rule (LSR), their ratios R and double ratio…”
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Doubly hidden 0++ molecules and tetraquarks states from QCD at NLO
Published in Nuclear and particle physics proceedings (01-07-2021)“…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 0++ fully heavy…”
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The New Charm-Strange Resonances in the D−K+ Channel
Published in Nuclear and particle physics proceedings (01-07-2021)“…We evaluate the masses and decay constants of the 0+ and 1− open-charm (c¯d¯)(us) tetraquarks and molecular states from QCD spectral sum rules (QSSR) by using…”
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Mass-splittings of doubly heavy baryons in QCD
Published in Physics letters. B (08-11-2010)“…We consider (for the first time) the ratios of doubly heavy baryon masses (spin 3/2 over spin 1/2 and SU(3) mass-splittings) using double ratios of sum rules…”
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Erratum to “QCD sum rules study of the J PC = 1 − − charmonium Y mesons” [Nucl. Phys. A 815 (2009) 53]
Published in Nuclear physics. A (01-05-2011)Get full text
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SU(3) mass-splittings of heavy-baryons in QCD
Published in Physics letters. B (15-02-2010)“…We extract directly (for the first time) the charmed (C=1) and bottom (B=−1) heavy-baryons (spin 1/2 and 3/2) mass-splittings due to SU(3) breaking using…”
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Erratum to “QCD sum rules study of the [formula omitted] charmonium Y mesons” [Nucl. Phys. A 815 (2009) 53]
Published in Nuclear physics. A (2011)“…We correct a mistake in the analytical expression given in [R.M. Albuquerque, M. Nielsen, Nucl. Phys. A 815 (2009) 53, arXiv:0804.4817] for the D s 0 D ¯ s ⁎…”
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Heavy-Light Exotics from QCD Laplace Sum Rule at N2LO in the chiral limit
Published in Nuclear and particle physics proceedings (01-01-2017)“…These talks review and summarize our results in [1, 2] on XYZ-like spectra obtained from QCD Laplace Sum Rule in the chiral limit at next-to-next-leading order…”
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17
Unravelling the relation between processed crude oils and the composition of spent caustic effluents as well as the respective economic impact
Published in Journal of hazardous materials (05-01-2022)“…Spent caustic discharges are responsible for increasing oil and grease (O&G) matter in refineries wastewater, leading to increasing treatment costs due to low…”
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QCD sum rules study of the J PC = 1 − − charmonium Y mesons
Published in Nuclear physics. A (2009)“…We use QCD sum rules to test the nature of the recently observed mesons Y ( 4260 ) , Y ( 4350 ) and Y ( 4660 ) , assumed to be exotic four-quark ( c c ¯ q q ¯…”
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The J / ψ ϕ decay channel of the Y(4140) Molecular State
Published in Nuclear and particle physics proceedings (01-01-2015)Get full text
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1−− and 0++ heavy four-quark and molecule states in QCD
Published in Physics letters. B (29-08-2012)“…We estimate the masses of the 1−− heavy four-quark and molecule states by combining exponential Laplace (LSR) and finite energy (FESR) sum rules known…”
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