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QED effects in inclusive semi-leptonic $B$ decays
/ Bigi, Dante (CERN ; Turin U. ; Munich, Max Planck Inst. ; Munich, Tech. U.) ; Bordone, Marzia (CERN) ; Gambino, Paolo (Turin U. ; Munich, Max Planck Inst. ; Munich, Tech. U.) ; Haisch, Ulrich (Munich, Max Planck Inst.) ; Piccione, Andrea (Turin U.)
We analyse in detail the QED corrections to the total decay width and the moments of the electron energy spectrum of the inclusive semi-leptonic $B \to X_c e \nu$ decay. Our calculation includes short-distance electroweak corrections, the complete ${\cal O}(\alpha)$ partonic terms and leading-logarithmic QED effects up to ${\cal O}(\Lambda^3_{\rm QCD}/m_b^3)$. [...]
arXiv:2309.02849; CERN-TH-2023-145; MPP-2023-186.-
2023-11-22 - 41 p.
- Published in : JHEP 2311 (2023) 163
Fulltext: document - PDF; 2309.02849 - PDF;
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The Vcb puzzle -- Flavour TH Institute
/ Gambino, Paolo (speaker)
The long-lasting discrepancy between the inclusive and exclusive determinations of the CKM element Vcb is an unlikely signal of New Physics, but it hampers significantly the precision program in flavour physics. I will review our understanding of inclusive and exclusive semileptonic b to charm decays and discuss recent theoretical and experimental progress, as well as future prospects..
2023 - 4389.
Theory Colloquia
External link: Event details
In : The Vcb puzzle -- Flavour TH Institute
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3.
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50 Years of Quantum Chromodynamics
/ Gross, Franz (Jefferson Lab ; William-Mary Coll.) ; Klempt, Eberhard (Bonn U., HISKP) ; Brodsky, Stanley J. (SLAC) ; Buras, Andrzej J. (TUM-IAS, Munich) ; Burkert, Volker D. (Jefferson Lab) ; Heinrich, Gudrun (KIT, Karlsruhe, TP) ; Jakobs, Karl (Freiburg U.) ; Meyer, Curtis A. (Carnegie Mellon U.) ; Orginos, Kostas (Jefferson Lab ; William-Mary Coll.) ; Strickland, Michael (Kent State U.) et al.
This paper presents a comprehensive review of both the theory and experimental successes of Quantum Chromodynamics, starting with its emergence as a well defined theory in 1972-73 and following developments and results up to the present day. Topics include a review of the earliest theoretical and experimental foundations; the fundamental constants of QCD; an introductory discussion of lattice QCD, the only known method for obtaining exact predictions from QCD; methods for approximating QCD, with special focus on effective field theories; QCD under extreme conditions; measurements and predictions of meson and baryon states; a special discussion of the structure of the nucleon; techniques for study of QCD at high energy, including treatment of jets and showers; measurements at colliders; weak decays and quark mixing; and a section on the future, which discusses new experimental facilities or upgrades currently funded. [...]
arXiv:2212.11107.-
2023-12 - 636 p.
- Published in : Eur. Phys. J. C 83 (2023) 1125
Fulltext: 2212.11107 - PDF; Publication - PDF; External link: JLAB Document Server
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Effective Field Theory in Particle Physics and Cosmology : Lecture Notes of the Les Houches Summer School : Volume 108, July 2017
3 - 28 Jul 2017
- Les Houches, France
/ Davidson, Sacha (ed.); Gambino, Paolo (ed.); Laine, Mikko (ed.); Neubert, Matthias (ed.); Salomon, Christophe (ed.)
The topic of the CVIII session of Les Houches School, held in July 2017, was Effective Field Theory (EFT). The goal of this school was to offer a broad introduction to the foundations and modern applications of Effective Field Theory in many of its incarnations..
Oxford : Oxford University Press, 2020
e-proceedings
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6.
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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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7.
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Report from Working Group 4 : Opportunities in Flavour Physics at the HL-LHC and HE-LHC
/ Cerri, A. (Sussex U.) ; Gligorov, V.V. (Paris U., VI-VII) ; Malvezzi, S. (INFN, Milan Bicocca) ; Martin Camalich, J. (Laguna U., Tenerife ; IAC, La Laguna) ; Zupan, J. (Cincinnati U.) ; Akar, S. (Cincinnati U.) ; Alimena, J. (Ohio State U.) ; Allanach, B.C. (Cambridge U., DAMTP) ; Altmannshofer, W. (UC, Santa Cruz, Inst. Part. Phys.) ; Anderlini, L. (INFN, Florence) et al.
Motivated by the success of the flavour physics programme carried out over the last decade at the Large Hadron Collider (LHC), we characterize in detail the physics potential of its High-Luminosity and High-Energy upgrades in this domain of physics. We document the extraordinary breadth of the HL/HE-LHC programme enabled by a putative Upgrade II of the dedicated flavour physics experiment LHCb and the evolution of the established flavour physics role of the ATLAS and CMS general purpose experiments. [...]
arXiv:1812.07638; CERN-LPCC-2018-06.-
Geneva : CERN, 2019-12-03 - 292 p.
- Published in : 10.23731/CYRM-2019-007.867
Fulltext: CERN-LPCC-2018-05 - PDF; 1812.07638 - PDF;
In : HL/HE-LHC Workshop : Workshop on the Physics of HL-LHC, and Perspectives at HE-LHC, Geneva, Switzerland, 18 - 20 Jun 2018
Report on the Physics at the HL-LHC, and Perspectives for the HE-LHC, Geneva, Switzerland, 18 - 20 Jun 2018, pp.867-1158
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8.
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Updated NNLO QCD predictions for the weak radiative B-meson decays
/ Misiak, M. (Warsaw U.) ; Asatrian, H.M. (Yerevan Phys. Inst.) ; Boughezal, R. (Argonne) ; Czakon, M. (RWTH Aachen U.) ; Ewerth, T. (KIT, Karlsruhe, TTP) ; Ferroglia, A. (CUNY, Graduate School - U. Ctr. ; New York City Coll. Tech.) ; Fiedler, P. (RWTH Aachen U.) ; Gambino, P. (INFN, Turin ; Turin U.) ; Greub, C. (U. Bern, AEC ; Bern U.) ; Haisch, U. (CERN ; Oxford U., Theor. Phys.) et al.
We perform an updated analysis of the inclusive weak radiative B-meson decays in the standard model, incorporating all our results for the O(alpha_s^2) and lower-order perturbative corrections that have been calculated after 2006. New estimates of non-perturbative effects are taken into account, too. [...]
arXiv:1503.01789; TTP15-007; SFB-CPP-14-121; SI-HEP-2015-08; QFET-2015-09; TTK-15-09; IFT-2-2015; TTP15-007; SFB-CPP-14-121; SI-HEP-2015-08; QFET-2015-09; TTK-15-09; IFT-2-2015.-
2015-06-02 - 5 p.
- Published in : Phys. Rev. Lett. 114 (2015) 221801
APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
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9.
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On the Relation of the LHeC and the LHC
/ Abelleira Fernandez, J.L. (LPHE, Lausanne ; CERN) ; Adolphsen, C. (SLAC) ; Adzic, P. (Belgrade U.) ; Akay, A.N. (TOBB ETU, Ankara) ; Aksakal, H. (Nigde U.) ; Albacete, J.L. (Saclay, SPhT) ; Allanach, B. (Cambridge U., DAMTP) ; Alekhin, S. (Serpukhov, IHEP ; DESY) ; Allport, P. (Liverpool U.) ; Andreev, V. (Lebedev Inst.) et al.
The present note relies on the recently published conceptual design report of the LHeC and extends the first contribution to the European strategy debate in emphasising the role of the LHeC to complement and complete the high luminosity LHC programme. [...]
arXiv:1211.5102 ; CERN-LHeC-Note-2012-005-GEN.
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2012. - 20 p.
Preprint - Full text
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A Large Hadron Electron Collider at CERN
/ Abelleira Fernandez, J.L. (LPHE, Lausanne ; CERN) ; Adolphsen, C. (SLAC) ; Adzic, P. (Belgrade U.) ; Akay, A.N. (TOBB ETU, Ankara) ; Aksakal, H. (Nigde U.) ; Albacete, J.L. (Saclay, SPhT) ; Allanach, B. (Cambridge U., DAMTP) ; Alekhin, S. (Serpukhov, IHEP ; DESY) ; Allport, P. (Liverpool U.) ; Andreev, V. (Lebedev Inst.) et al.
This document provides a brief overview of the recently published report on the design of the Large Hadron Electron Collider (LHeC), which comprises its physics programme, accelerator physics, technology and main detector concepts. [...]
arXiv:1211.4831 ; CERN-LHeC-Note-2012-004-GEN.
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2012. - 18 p.
Preprint - Full text
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