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A magnetically shielded room with ultra low residual field and gradient
/ Altarev, I. (Munich, Tech. U.) ; Babcock, E. (ZAT, Julich) ; Beck, D. (Illinois U., Urbana (main)) ; Burghoff, M. (Berlin, Phys. Tech. Bund.) ; Chesnevskaya, S. (Munich, Tech. U.) ; Chupp, T. (Michigan U.) ; Degenkolb, S. (Michigan U.) ; Fan, I. (Berlin, Phys. Tech. Bund.) ; Fierlinger, P. (EFDA-CSU, Garching ; Munich, Tech. U.) ; Frei, A. (Forschungsreaktor Munich) et al.
A versatile and portable magnetically shielded room with a field of (700 \pm 200) pT within a central volume of 1m x 1m x 1m and a field gradient less than 300 pT/m is described. This performance represents more than a hundred-fold improvement of the state of the art for a two-layer magnetic shield and provides an environment suitable for a next generation of precision experiments in fundamental physics at low energies; in particular, searches for electric dipole moments of fundamental systems and tests of Lorentz-invariance based on spin-precession experiments. [...]
arXiv:1403.6467.-
2014 - 9 p.
- Published in : Rev. Sci. Instrum. 85 (2014) 075106
Fulltext: PDF; External link: Preprint
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Spectroscopy of $^{46}$Ar by the $(t,p)$ two-neutron transfer reaction
/ Nowak, K. (Munich, Tech. U.) ; Wimmer, K. (Munich, Tech. U. ; Tokyo U.) ; Hellgartner, S. (Munich, Tech. U.) ; Mücher, D. (Munich, Tech. U.) ; Bildstein, V. (Munich, Tech. U. ; Guelph U.) ; Diriken, J. (KU Leuven, Dept. Phys. Astron.) ; Elseviers, J. (KU Leuven, Dept. Phys. Astron.) ; Gaffney, L.P. (Liverpool U.) ; Gernhäuser, R. (Munich, Tech. U.) ; Iwanicki, J. (Warsaw U., Heavy Ion Lab) et al.
States in the $N=28$ nucleus $^{46}$Ar have been studied by a two-neutron transfer reaction at REX-ISOLDE (CERN). A beam of radioactive $^{44}$ at an energy of 2.16~AMeV and a tritium loaded titanium target were used to populate $^{46}$ by the t($^{44}$,p) two-neutron transfer reaction. [...]
arXiv:1604.04014.-
2016-04-27 - 10 p.
- Published in : Phys. Rev. C 93 (2016) 044335
Fulltext: PDF; External link: Preprint
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Leading-logarithmic threshold resummation of Higgs production in gluon fusion at next-to-leading power
/ Beneke, Martin (Munich, Tech. U.) ; Garny, Mathias (Munich, Tech. U.) ; Jaskiewicz, Sebastian (Munich, Tech. U.) ; Szafron, Robert (Munich, Tech. U. ; CERN) ; Vernazza, Leonardo (Nikhef, Amsterdam ; Amsterdam U. ; INFN, Turin ; Turin U.) ; Wang, Jian (Shandong U.)
We sum the leading logarithms $\alpha_s^n \ln^{2 n-1}(1-z), n = 1,2,$... near the kinematic threshold $z=m_H^2/\hat{s}\to 1$ at next-to-leading power in the expansion in (1$-z$) for Higgs production in gluon fusion. [...]
arXiv:1910.12685; TUM-HEP-1235/19; NIKHEF/2019-048; CERN-TH-2019-176.-
2020-01-16 - 19 p.
- Published in : JHEP 2001 (2020) 094
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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An optical atomic clock based on a highly charged ion
/ King, Steven A. (Braunschweig, Phys. Tech. Bund.) ; Spieß, Lukas J. (Braunschweig, Phys. Tech. Bund.) ; Micke, Peter (Braunschweig, Phys. Tech. Bund. ; Heidelberg, Max Planck Inst. ; CERN) ; Wilzewski, Alexander (Braunschweig, Phys. Tech. Bund.) ; Leopold, Tobias (Braunschweig, Phys. Tech. Bund.) ; Benkler, Erik (Braunschweig, Phys. Tech. Bund.) ; Lange, Richard (Braunschweig, Phys. Tech. Bund.) ; Huntemann, Nils (Braunschweig, Phys. Tech. Bund.) ; Surzhykov, Andrey (Braunschweig, Phys. Tech. Bund. ; Braunschweig Tech. U.) ; Yerokhin, Vladimir A. (Braunschweig, Phys. Tech. Bund.) et al.
Optical atomic clocks are the most accurate measurement devices ever constructed and have found many applications in fundamental science and technology. The use of highly charged ions (HCI) as a new class of references for highest accuracy clocks and precision tests of fundamental physics has long been motivated by their extreme atomic properties and reduced sensitivity to perturbations from external electric and magnetic fields compared to singly charged ions or neutral atoms. [...]
arXiv:2205.13053.-
2022-11-02 - 10 p.
- Published in : Nature 611 (2022) 43-47
Fulltext: PDF;
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The Present and Future of Four Tops
/ Banelli, Giovanni (Munich, Tech. U.) ; Salvioni, Ennio (CERN) ; Serra, Javi (Munich, Tech. U.) ; Theil, Tobias (Munich, Tech. U.) ; Weiler, Andreas (Munich, Tech. U.)
We study the phenomenology of a strongly-interacting top quark at future hadron and lepton colliders, showing that the characteristic four-top contact operators give rise to the most significant effects. We demonstrate the extraordinary potential of a 100 TeV proton-proton collider to directly test such non-standard interactions in four-top production, a process that we thoroughly analyze in the same-sign dilepton and trilepton channels, and explore in the fully hadronic channel. [...]
arXiv:2010.05915; TUM-HEP-1286-20; CERN-TH-2020-166.-
2021-02-04 - 34 p.
- Published in : JHEP 2102 (2021) 043
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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NNLO versus NLO multi-jet merging for top-pair production including electroweak corrections
/ Czakon, Michaa L. (Aachen, Tech. Hochsch.) ; Gütschow, Christian (University Coll. London) ; Lindert, Jonas M. (Durham U., IPPP) ; Mitov, Alexander (Cambridge U.) ; Pagani, Davide (Munich, Tech. U.) ; Papanastasiou, Andrew S. (Cambridge U.) ; Schönherr, Marek (Durham U., IPPP ; CERN) ; Tsinikos, Ioannis (Munich, Tech. U.) ; Zaro, Marco (Nikhef, Amsterdam)
In this proceedings we compare phenomenological predictions for differential distributions in top-quark pair production at the LHC. [...]
arXiv:1901.04442 ; Cavendish-HEP-19/01 ; IPPP/19/3 ; NIKHEF/2019-001 ; TUM-HEP-1182/19, TTK-19-01.
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2019. - 8 p.
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Response of CVD Diamond Detectors to 14 MeV Neutrons
/ Weiss, C (CERN ; Vienna, Tech. U.) ; Griesmayer, E (Vienna, Tech. U. ; Ion Microfabrication Syst., Vienna) ; Gagnon-Moisan, F (Berlin, Phys. Tech. Bund.) ; Kasper, A (Berlin, Phys. Tech. Bund.) ; Lucke, A (Berlin, Phys. Tech. Bund.) ; Schuhmacher, H (Berlin, Phys. Tech. Bund.) ; Weierganz, M (Berlin, Phys. Tech. Bund.) ; Zimba, A (Berlin, Phys. Tech. Bund.)
A series of measurements was taken at the Physikalisch-Technische Bundesanstalt (PTB) Braunschweig [1] using the 14 MeV neutron beam at the Van der Graaf accelerator with chemical vapor deposition (CVD) diamond detectors, in preparation of an upcoming (n, ) cross-section measurement [2] at the CERN-n TOF experiment [3, 4]. [...]
CERN-ATS-Note-2012-093 TECH.
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2012. - 8 p.
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