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1.
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The LHCb VELO Upgrade module construction
/ Akiba, K. (NIKHEF, Amsterdam) ; Alexander, M. (Glasgow U.) ; Bertella, C. (Manchester U.) ; Biolchini, A. (NIKHEF, Amsterdam) ; Bitadze, A. (Manchester U.) ; Bogdanova, G. (Higher Sch. of Economics, Moscow) ; Borghi, S. (Manchester U.) ; Bowcock, T.J.V. (Liverpool U.) ; Bridges, K. (Liverpool U.) ; Brock, M. (Oxford U.) et al.
The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC collision rate, critically including the use of vertex information. [...]
arXiv:2404.13615; LHCb-DP-2024-001; LHCb-PAPER-2024-001.-
2024-06-17 - 66 p.
- Published in : JINST 19 (2024) P06023
Fulltext: 2404.13615 - PDF; Publication - PDF;
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2.
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Hadronic vacuum polarization in the muon $g-2$: The short-distance contribution from lattice QCD
/ Kuberski, Simon (CERN) ; Cè, Marco (INFN, Milan Bicocca ; Milan Bicocca U. (main)) ; von Hippel, Georg (U. Mainz, PRISMA ; Mainz U., Inst. Phys.) ; Meyer, Harvey B. (U. Mainz, PRISMA ; Mainz U., Inst. Phys. ; Darmstadt, GSI) ; Ottnad, Konstantin (U. Mainz, PRISMA ; Mainz U., Inst. Phys.) ; Risch, Andreas (Wuppertal U. ; NIC, Zeuthen ; DESY, Zeuthen) ; Wittig, Hartmut (U. Mainz, PRISMA ; Mainz U., Inst. Phys. ; Darmstadt, GSI)
We present results for the short-distance window observable of the hadronic vacuum polarization contribution to the muon $g-2$, computed via the time-momentum representation (TMR) in lattice QCD. A key novelty of our calculation is the reduction of discretization effects by a suitable subtraction applied to the TMR kernel function, which cancels the leading $x_0^4$-behaviour at short distances. [...]
arXiv:2401.11895; MITP-24-011; CERN-TH-2024-011.-
2024-03-29 - 37 p.
- Published in : JHEP 2403 (2024) 172
Fulltext: 2401.11895 - PDF; document - PDF;
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3.
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A strategy for B-physics observables in the continuum limit
/ Sommer, Rainer (DESY, Zeuthen ; Humboldt U., Berlin) ; Conigli, Alessandro (CSIC, Madrid ; Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Frison, Julien (DESY, Zeuthen) ; Fritzsch, Patrick (TCD, Dublin) ; Gérardin, Antoine (Marseille, CPT) ; Heitger, Jochen (U. Munster) ; Herdoiza, Gregorio (CSIC, Madrid) ; Kuberski, Simon (CERN ; Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Pena, Carlos (CSIC, Madrid) ; Simma, Hubert (DESY, Zeuthen)
In a somewhat forgotten paper [1] it was shown how to perform interpolations between relativistic and static computations in order to obtain results for heavy-light observables for masses from, say, $m_{\rm charm}$ to $m_{\rm bottom}$. All quantities are first continuum extrapolated and then interpolated in $1/m_h=1/m_{\rm heavy}$. [...]
arXiv:2312.09811; HU-EP-23/71; DESY-23-216; MS-TP-23-53.-
2024-05-07 - 10 p.
- Published in : PoS LATTICE2023 (2024) 268
Fulltext: 2312.09811 - PDF; document - PDF;
In : 40th International Symposium on Lattice Field Theory (Lattice 2023), Fermilab, Batavia, IL, United States, 30 Jul - 5 Aug 2023, pp.268
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4.
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$m_b$ and $f_{B^{(*)}}$ in 2 + 1 flavour QCD from a combination of continuum limit static and relativistic results
/ Conigli, Alessandro (CSIC, Madrid ; Helmholtz-Zentrum, Berlin ; Darmstadt, GSI) ; Frison, Julien (DESY, Zeuthen) ; Fritzsch, Patrick (TCD, Dublin) ; Gérardin, Antoine (Marseille, CPT) ; Heitger, Jochen (U. Munster) ; Herdoiza, Gregorio (CSIC, Madrid) ; Kuberski, Simon (CERN ; Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Pena, Carlos (CSIC, Madrid) ; Simma, Hubert (Humboldt U., Berlin) ; Sommer, Rainer (DESY, Zeuthen ; Humboldt U., Berlin)
We present preliminary results for B-physics from a combination of non-perturbative results in the static limit with relativistic computations satisfying $am_{\mathrm{heavy}}\ll 1$. Relativistic measurements are carried out at the physical b-quark mass using the Schrödinger Functional in a $0.5 \ \mathrm{fm}$ box. [...]
arXiv:2312.10017; HU-EP-23/70; DESY-23-217; MS-TP-23-54.-
2023-12-27 - 11 p.
- Published in : PoS: LATTICE2023 (2024) , pp. 237
Fulltext: document - PDF; 2312.10017 - PDF;
In : 40th International Symposium on Lattice Field Theory (Lattice 2023), Fermilab, Batavia, IL, United States, 30 Jul - 5 Aug 2023, pp.237
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5.
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6.
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7.
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High-resolution, low-latency, bunch-by-bunch feedback system for nanobeam stabilization
/ Bett, D.R. (JAI, UK ; CERN) ; Blaskovic Kraljevic, N. (JAI, UK ; Lund U., MAX-lab) ; Bromwich, T. (JAI, UK ; Edinburgh U.) ; Burrows, P.N. (JAI, UK) ; Christian, G.B. (JAI, UK ; Diamond Light Source) ; Perry, C. (JAI, UK) ; Ramjiawan, R. (JAI, UK ; CERN)
We report the design, operation and performance of a high-resolution, low-latency, bunch-by-bunch feedback system for nano-beam stabilisation. The system employs novel, ultra-low quality-factor cavity beam position monitors (BPMs), a two-stage analogue signal down-mixing system, and a digital signal processing and feedback board incorporating an FPGA. [...]
arXiv:2201.01531.-
2022-02-01 - 14 p.
- Published in : Phys. Rev. Accel. Beams 25 (2022) 022801
Fulltext: Publication - PDF; 2201.01531 - PDF;
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8.
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Intermediate window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from O$(a)$ improved Wilson quarks
/ Cè, Marco (U. Bern, AEC) ; Gérardin, Antoine (Marseille, CPT) ; von Hippel, Georg (U. Mainz, PRISMA) ; Hudspith, Renwick J. (Darmstadt, Tech. Hochsch. ; Darmstadt, GSI) ; Kuberski, Simon (Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Meyer, Harvey (U. Mainz, PRISMA ; Helmholtz Inst., Mainz) ; Miura, Kohtaroh (Helmholtz Inst., Mainz ; KEK, Tsukuba) ; Mohler, Daniel (Darmstadt, Tech. Hochsch. ; Darmstadt, GSI) ; Ottnad, Konstantin (U. Mainz, PRISMA) ; Paul, Srijit (U. Mainz, PRISMA) et al.
Following the publication of the new measurement of the anomalous magnetic moment of the muon, the discrepancy between experiment and the theory prediction from the $g-2$ theory initiative has increased to $4.2\,\sigma$. Recent lattice QCD calculations predict values for the hadronic vacuum polarization contribution that are larger than the data-driven estimates, bringing the Standard Model prediction closer to the experimental measurement. [...]
arXiv:2211.17083; MITP-22-102; DESY-22-193.-
2023-01-29 - 10 p.
- Published in : PoS LATTICE2022 (2023) 321
Fulltext: 2211.17083 - PDF; document - PDF;
In : 39th International Symposium on Lattice Field Theory (Lattice 2022), Bonn, Germany, 8 - 13 Aug 2022, pp.321
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9.
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Searches for new phenomena in leptonic final states using the ATLAS detector
/ Wilbern, Daniel John (University of Oklahoma (US))
/ATLAS Collaboration
Many theories beyond the Standard Model predict new phenomena, such as Z', W' bosons, KK gravitons, or heavy leptons, in final states with isolated, high-pT leptons (e/mu/tau) or photons. Searches for new physics with such signatures, produced either resonantly or non-resonantly, are performed using the ATLAS experiment at the LHC. [...]
ATL-PHYS-SLIDE-2022-495.-
Geneva : CERN, 2022 - 18 p.
Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : CORFU2022: 22th Hellenic School and Workshops on Elementary Particle Physics and Gravity, Corfu, Gr, 28 Aug - 1 Oct 2022
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10.
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Window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from lattice QCD
/ Cè, Marco (U. Bern, AEC ; CERN) ; Gérardin, Antoine (Marseille, CPT) ; von Hippel, Georg (U. Mainz, PRISMA) ; Hudspith, Renwick J. (Helmholtz Inst., Mainz) ; Kuberski, Simon (Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Meyer, Harvey B. (U. Mainz, PRISMA ; Helmholtz Inst., Mainz) ; Miura, Kohtaroh (Helmholtz Inst., Mainz ; Nagoya U. (main)) ; Mohler, Daniel (Darmstadt, GSI ; Darmstadt, Tech. U.) ; Ottnad, Konstantin (U. Mainz, PRISMA) ; Paul Srijit (U. Mainz, PRISMA) et al.
Euclidean time windows in the integral representation of the hadronic vacuum polarization contribution to the muon $g-2$ serve to test the consistency of lattice calculations and may help in tracing the origins of a potential tension between lattice and data-driven evaluations. In this paper, we present results for the intermediate time window observable computed using O($a$) improved Wilson fermions at six values of the lattice spacings below 0.1 fm and pion masses down to the physical value. [...]
arXiv:2206.06582; MITP-22-038; CERN-TH-2022-098; DESY-22-105.-
2022-12-01 - 43 p.
- Published in : Phys. Rev. D 106 (2022) 114502
Fulltext: Publication - PDF; 2206.06582 - PDF;
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