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Form factors for semileptonic B-decays with HISQ light quarks and clover b-quarks in Fermilab interpretation
/ Jeong, Hwancheol (Indiana U.) ; DeTar, Carleton (Utah U.) ; El-Khadra, Aida X. (Tata Inst. ; Bielefeld U. ; CERN ; Kaiserslautern U. ; Illinois U., Urbana) ; Gámiz, Elvira (CAFPE, Granada ; Granada U., Theor. Phys. Astrophys.) ; Gelzer, Zechariah (Tata Inst. ; Bielefeld U. ; CERN ; Kaiserslautern U. ; Illinois U., Urbana) ; Gottlieb, Steven (Indiana U.) ; Jay, William (MIT, Cambridge, CTP) ; Kronfeld, Andreas (Fermilab) ; Lytle, Andrew (Tata Inst. ; Bielefeld U. ; CERN ; Kaiserslautern U. ; Illinois U., Urbana) ; Vaquero, Alejandro (Zaragoza U.)
We compute the vector, scalar, and tensor form factors for the $B\to \pi$, $B\to K$, and $B_s\to K$ amplitudes, which are needed to describe semileptonic $B$-meson decay rates for both the charged and neutral current cases. We use the highly improved staggered quark (HISQ) action for the sea and light valence quarks. [...]
arXiv:2402.14924; FERMILAB-CONF-24-0077-T.-
2024-05-04 - 9 p.
- Published in : PoS: LATTICE2023 (2024) , pp. 253
Fulltext: document - PDF; 2402.14924 - PDF; 477e115143aafe3f8c7fb18cda1d585b - PDF; External link: Fermilab Library Server
In : 40th International Symposium on Lattice Field Theory (Lattice 2023), Fermilab, Batavia, IL, United States, 30 Jul - 5 Aug 2023, pp.253
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Lattice QCD: from Promise to Precision
/ Kronfeld, Andreas (speaker)
Within the Standard Model of particle physics, quantum chromodynamics (QCD, the theory of the strong force) is unique in several ways. It is a beautiful quantum field theory, consistent at all energies, all temperatures, and all densities. [...]
2023 - 4609.
Theory Colloquia
External link: Event details
In : Lattice QCD: from Promise to Precision
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3.
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Precision QCD, Hadronic Structure & Forward QCD, Heavy Ions: Report of Energy Frontier Topical Groups 5, 6, 7 submitted to Snowmass 2021
/ Begel, M. (Brookhaven) ; Hoeche, S. (Fermilab) ; Schmitt, M. (Northwestern U.) ; Lin, H.-W. (Michigan State U.) ; Nadolsky, P.M. (Southern Methodist U. (main)) ; Royon, C. (Kansas U.) ; Lee, Y-J. (MIT ; LLR, Palaiseau) ; Mukherjee, S. (Brookhaven) ; Baldenegro, C. ; Campbell, J. (Fermilab) et al.
This report was prepared on behalf of three Energy Frontier Topical Groups of the Snowmass 2021 Community Planning Exercise. [...]
arXiv:2209.14872 ; FERMILAB-CONF-22-733-SCD-T ; SMU-HEP-22-06.
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95 p.
Fermilab Library Server - Fulltext - Fulltext
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A lattice QCD perspective on weak decays of b and c quarks Snowmass 2022 White Paper
/ Boyle, Peter A. (Brookhaven ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Chakraborty, Bipasha (Cambridge U., DAMTP) ; Davies, Christine T.H. (Glasgow U.) ; DeGrand, Thomas (Colorado U.) ; DeTar, Carleton (Utah U.) ; Del Debbio, Luigi (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; El-Khadra, Aida X. (Illinois U., Urbana) ; Erben, Felix (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Flynn, Jonathan M. (U. Southampton (main)) ; Gámiz, Elvira (Granada U., Theor. Phys. Astrophys.) et al.
Lattice quantum chromodynamics has proven to be an indispensable method to determine nonperturbative strong contributions to weak decay processes. [...]
arXiv:2205.15373 ; CERN-TH-2022-036 ; FERMILAB-CONF-22-433-SCD-T ; JLAB-THY-22-3582,
MITP-22-020 ; MIT-CTP/5413 ; MS-TP-22-07 ; SI-HEP-2022-11.
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Fermilab Library Server - eConf - Fulltext - Fulltext
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5.
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Prospects for precise predictions of $a_\mu$ in the Standard Model
/ Colangelo, G. (U. Bern (main)) ; Davier, M. (IJCLab, Orsay) ; El-Khadra, A.X. (Illinois U., Urbana ; Fermilab) ; Hoferichter, M. (U. Bern (main)) ; Lehner, C. (Regensburg U.) ; Lellouch, L. (Marseille, CPT) ; Mibe, T. (KEK, Tsukuba) ; Roberts, B.L. (Boston U.) ; Teubner, T. (Liverpool U., Dept. Math.) ; Wittig, H. (U. Mainz, PRISMA ; Darmstadt, GSI) et al.
We discuss the prospects for improving the precision on the hadronic corrections to the anomalous magnetic moment of the muon, and the plans of the Muon $g-2$ Theory Initiative to update the Standard Model prediction..
arXiv:2203.15810 ; FERMILAB-CONF-22-236-T ; LTH 1303 ; MITP-22-030.
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24.
Fermilab Library Server - eConf - Fulltext - Fulltext
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The strong coupling constant: State of the art and the decade ahead
/ d'Enterria, D. (CERN) ; Kluth, S. (Munich, Max Planck Inst.) ; Zanderighi, G. (Munich, Max Planck Inst.) ; Ayala, C. (Tarapaca U.) ; Benitez-Rathgeb, M.A. (Vienna U.) ; Bluemlein, J. (DESY, Zeuthen) ; Boito, D. (Vienna U. ; Sao Paulo U.) ; Brambilla, N. (Munich, Tech. U.) ; Britzger, D. (Munich, Max Planck Inst.) ; Camarda, S. (CERN) et al.
Theoretical predictions for particle production cross sections and decays at colliders rely heavily on perturbative Quantum Chromodynamics (QCD) calculations, expressed as an expansion in powers of the strong coupling constant $\alpha_s$. The current $\mathcal{O}(1\%)$ uncertainty of the QCD coupling evaluated at the reference Z boson mass, $\alpha_s(m_Z) = 0.1179 \pm 0.0009$, is one of the limiting factors to more precisely describe multiple processes at current and future colliders. [...]
arXiv:2203.08271; FERMILAB-CONF-22-148-T.-
2024-10-28 - 163 p.
- Published in : J. Phys. G
Fulltext: jt - PDF; 2203.08271 - PDF; Fulltext from Publisher: PDF; External links: Fermilab Library Server; eConf
In : 2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.090501
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Challenges in Semileptonic B Decays
/ Gambino, P. (Turin U. ; INFN, Turin) ; Kronfeld, A.S. (Fermilab) ; Rotondo, M. (Frascati) ; Schwanda, C. (Vienna, OAW) ; Bernlochner, F. (Bonn U.) ; Bharucha, A. (Marseille, CPT) ; Bozzi, C. (INFN, Ferrara) ; Calvi, M. (Milan Bicocca U. ; INFN, Milan Bicocca) ; Cao, L. (Bonn U.) ; Ciezarek, G. (CERN) et al.
Two of the elements of the Cabibbo-Kobayashi-Maskawa quark mixing matrix, $|V_{ub}|$ and $|V_{cb}|$, are extracted from semileptonic B decays. The results of the B factories, analysed in the light of the most recent theoretical calculations, remain puzzling, because for both $|V_{ub}|$ and $|V_{cb}|$ the exclusive and inclusive determinations are in clear tension. [...]
arXiv:2006.07287; FERMILAB-PUB-20-235-T.-
2020-10-19 - 77 p.
- Published in : Eur. Phys. J. C 80 (2020) 966
Article from SCOAP3: PDF; Fulltext: fermilab-pub-20-235-t - PDF; 2006.07287 - PDF; External link: Fermilab Library Server (fulltext available)
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9.
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The anomalous magnetic moment of the muon in the Standard Model
/ Aoyama, T. (KEK, Tsukuba ; Nishina Ctr., RIKEN ; KMI, Nagoya) ; Asmussen, N. (Southampton U.) ; Benayoun, M. (Paris U., VI-VII) ; Bijnens, J. (Lund U.) ; Blum, T. (Connecticut U. ; RIKEN BNL) ; Bruno, M. (CERN) ; Caprini, I. (Bucharest, IFIN-HH) ; Carloni Calame, C.M. (INFN, Pavia) ; Cè, M. (CERN ; Mainz U., Inst. Phys. ; Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Colangelo, G. (U. Bern, AEC) et al.
We review the present status of the Standard Model calculation of the anomalous magnetic moment of the muon. This is performed in a perturbative expansion in the fine-structure constant $\alpha$ and is broken down into pure QED, electroweak, and hadronic contributions. [...]
arXiv:2006.04822; FERMILAB-PUB-20-207-T; INT-PUB-20-021; KEK Preprint 2020-5,
MITP/20-028; KEK Preprint 2020-5, MITP/20-028; CERN-TH-2020-075; IFT-UAM/CSIC-20-74; LMU-ASC 18/20; LTH 1234,
LU TP 20-20; LTH 1234, LU TP 20-20; MAN/HEP/2020/003; PSI-PR-20-06; UWThPh 2020-14; ZU-TH 18/20.-
Geneva : CERN, 2020-12-03 - 166 p.
- Published in : Phys. Rep. 887 (2020) 1-166
Fulltext: 2006.04822 - PDF; fermilab-pub-20-207-t - PDF; Fulltext from Publisher: PDF; External links: Fermilab News article; Fermilab Library Server (fulltext available)
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