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Related papers: Bottom Quark Mass Determination from low-n Sum Rul…

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We study the spectra of the bottomonium and B_c states within perturbative QCD up to order alpha_s^4. The O(Lambda_QCD) renormalon cancellation between the static potential and the pole mass is performed in the epsilon-expansion scheme. We…

High Energy Physics - Phenomenology · Physics 2009-06-12 N. Brambilla , Y. Sumino , A. Vairo

We present a sum-rule extraction of the decay constants of the D, Ds, B, and Bs mesons from the two-point correlator of heavy-light pseudoscalar currents [1]. Our main emphasis is laid on the control over the uncertainties in the decay…

High Energy Physics - Phenomenology · Physics 2014-11-21 Wolfgang Lucha , Dmitri Melikhov , Silvano Simula

The non-perturbative nature of QCD at hadronic scales implied the development of phenomenological approaches such as quark models or, more recently, computer-based calculations using Lattice QCD. However, the unique properties of heavy…

High Energy Physics - Phenomenology · Physics 2017-11-29 Pablo G. Ortega , Vicent Mateu

A non perturbative method to compute the mass of the b quark including the 1/m term in HQET has been presented in a companion talk. Following this strategy, we find in the MS bar scheme m_b^{stat}(m_b) = 4.350(64) GeV for the leading term,…

High Energy Physics - Lattice · Physics 2007-05-23 Michele Della Morte , Nicolas Garron , Rainer Sommer , Mauro Papinutto

We review the present status for the determinations of the light and heavy quark masses, the light quark chiral condensate and the decay constants of light and heavy-light (pseudo)scalar mesons from QCD spectral sum rules (QSSR). Bounds on…

High Energy Physics - Phenomenology · Physics 2009-09-29 Stephan Narison

Exploiting recently proposed novel improvements of the techniques used for extracting from QCD sum rules pivotal hadron characteristics, including their systematic errors, we succeed to achieve a conspicuous agreement of the predictions of…

High Energy Physics - Phenomenology · Physics 2014-04-15 Wolfgang Lucha , Dmitri Melikhov , Silvano Simula

We update the experimental moments for the charm quark as computed in arXiv:hep-ph/0702103. and used in arXiv:0907.2110 and arXiv:1010.6157 for the determination of the charm-quark mass. The new value for the MSbar charm-quark mass reads…

High Energy Physics - Phenomenology · Physics 2017-12-13 Konstantin G. Chetyrkin , Johann H. Kuhn , Andreas Maier , Philipp Maierhofer , Peter Marquard , Matthias Steinhauser , Christian Sturm

We calculate the masses of bottom mesons using an improved relativistic action for the b-quarks and the RBC/UKQCD Iwasaki gauge configurations with 2+1 flavors of dynamical domain-wall light quarks. We analyze configurations with two…

We show that in the context of QCD sum rules a strong (anti-) correlation between the $b$-quark mass $m_b$ and the $B$-meson's decay constant $f_B$ emerges: $\delta f_B/f_B\approx -8 \delta m_b/m_b.$ This observation allows us to derive a…

High Energy Physics - Phenomenology · Physics 2014-04-15 Wolfgang Lucha , Dmitri Melikhov , Silvano Simula

In this article, we utilise the non-relativistic potential model to calculate the mass-spectra of all bottom [$bb][\bar{b}\bar{b}$] and heavy-light bottom [$bq][\bar{b}\bar{q}$] (q=u,d) tetraquark states in diquark-antidiquark…

High Energy Physics - Phenomenology · Physics 2021-10-22 Rohit Tiwari , D. P. Rathaud , Ajay Kumar Rai

We provide a new determination of the charm quark mass using the Highly Improved Staggered Quark (HISQ) action, finding m_c(3 GeV) = 0.983(23) GeV. Our determination makes extensive use of second order lattice perturbation theory in…

High Energy Physics - Lattice · Physics 2019-08-13 I. F. Allison , K. Y. Wong , C. T. H. Davies , C. McNeile , H. D. Trottier , E. Dalgic , J. Wu , E. Follana , R. R. Horgan , G. P. Lepage , J. Shigemitsu

We include the new, five-loop, O(alpha_s^4) correction into the QCD sum rule used for the s-quark mass determination. The pseudoscalar Borel sum rule is taken as a study case. The OPE for the correlation function with N^4LO, O(alpha_s^4)…

High Energy Physics - Phenomenology · Physics 2008-11-26 K. G. Chetyrkin , A. Khodjamirian

QCD sum rules involving mixed inverse moment integration kernels are used in order to determine the running charm-quark mass in the $\bar{MS}$ scheme. Both the high and the low energy expansion of the vector current correlator are involved…

High Energy Physics - Phenomenology · Physics 2011-04-22 S. Bodenstein , J. Bordes , C. A. Dominguez , J. Penarrocha , K. Schilcher

We present new values for the $\bar{MS}$ masses of $b$ and $c$ quarks based on lattice NRQCD simulations of the $\Upsilon (b\bar{b})$ and $\psi (c\bar{c})$ systems. These include three measurements of the $b$ mass based on quenched…

High Energy Physics - Lattice · Physics 2012-08-27 K. Hornbostel , in collaboration with , : , C. T. H. Davies , G. P. Lepage , C. J. Morningstar , J. Shigemitsu , J. Sloan

We investigate the weak decays of $\bar B_{s}^{0}$ and $\Lambda_{b}$ to charm hadrons based on the dynamical supersymmetry between the $\bar s$ quark and the $ud$ diquark. We derive a new sum rule relating the decay rates of the processes…

High Energy Physics - Phenomenology · Physics 2022-03-23 Taiju Amano , Daisuke Jido , Stefan Leupold

The bottomonium spectrum is the perfect testing ground for the confining potential and unitarisation effects. The bottom quark is about three times heavier than the charm quark, so that $b\bar{b}$ systems probe primarily the short-range…

High Energy Physics - Phenomenology · Physics 2023-02-15 E. van Beveren , G. Rupp

We present the implementation of the radiative corrections of the Higgs sector in three public computer codes for the evaluation of the particle spectrum in the Minimal Supersymmetric Standard Model, Softsusy, Spheno and SuSpect. We…

High Energy Physics - Phenomenology · Physics 2018-05-24 B. C. Allanach , A. Djouadi , J. L. Kneur , W. Porod , P. Slavich

We have reconsidered the results on the masses of the narrow bottomonium states $\Upsilon(1S)$--$\Upsilon(3S)$ obtained in 1982--1986 at CESR, DORIS and VEPP-4 colliders in order to fix shortcomings of the mass determination procedures. For…

High Energy Physics - Experiment · Physics 2023-06-27 A. G. Shamov , O. L. Rezanova

We summarize recent results obtained in [1] on the running m_{c,b}(m_{c,b}) in the MS scheme and f_{D_(s), B_(s)} using QCD spectral sum rules (QSSR) known to N2LO PT series, including all dimension-six NP condensate contributions in the…

High Energy Physics - Phenomenology · Physics 2015-06-11 Stephan Narison

The calculation of the mass of light scalar isosinglet meson within the Shifman-Vainshtein-Zakharov (SVZ) sum rules is revisited. We develop simple analytical methods for estimation of hadron masses in the SVZ approach and try to reveal the…

High Energy Physics - Phenomenology · Physics 2016-11-28 S. S. Afonin
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