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Catching a New Force by the Tail
/ Alioli, Simone (CERN ; Milan Bicocca U.) ; Farina, Marco (Rutgers U., Piscataway) ; Pappadopulo, Duccio (New York U. ; New York U., CCPP) ; Ruderman, Joshua T. (New York U. ; New York U., CCPP)
The Large Hadron Collider (LHC) is sensitive to new heavy gauge bosons that produce narrow peaks in the dilepton invariant mass spectrum up to about $m_{Z'}\sim 5$ TeV. $Z'$s that are too heavy to produce directly can reveal their presence through interference with Standard Model dilepton production. [...]
CERN-TH-2017-230; arXiv:1712.02347; CERN-TH-2017-230.-
2018-03-09 - 6 p.
- Published in : Phys. Rev. Lett. 120 (2018) 101801
Article from SCOAP3: PDF; Fulltext from Publisher: PDF; Preprint: PDF;
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Energy helps accuracy: electroweak precision tests at hadron colliders
/ Farina, Marco (Rutgers U., Piscataway) ; Panico, Giuliano (Barcelona, IFAE) ; Pappadopulo, Duccio (New York U. ; New York U., CCPP) ; Ruderman, Joshua T. (New York U. ; New York U., CCPP) ; Torre, Riccardo (ITPP, Lausanne) ; Wulzer, Andrea (ITPP, Lausanne ; CERN ; Padua U., Astron. Dept.)
We show that high energy measurements of Drell-Yan at the LHC can serve as electroweak precision tests. Dimension-6 operators, from the Standard Model Effective Field Theory, modify the high energy behavior of electroweak gauge boson propagators. [...]
arXiv:1609.08157; CERN-TH-2016-205.-
2017-09-10 - 6 p.
- Published in : Phys. Lett. B 772 (2017) 210-215
Article from SCOAP3: PDF; Fulltext: PDF; External link: Preprint
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Models of Goldstone Gauginos
/ Alves, Daniele S.M. (New York U., CCPP ; Princeton U.) ; Galloway, Jamison (New York U., CCPP ; New York U.) ; McCullough, Matthew (CERN) ; Weiner, Neal (New York U., CCPP ; New York U.)
Models with Dirac gauginos provide appealing scenarios for physics beyond the standard model. They have smaller radiative corrections to the Higgs mass, a suppression of certain SUSY production processes, and ameliorated flavor constraints. [...]
arXiv:1502.05055; CERN-PH-TH-2015-024; CERN-PH-TH-2015-024.-
Geneva : CERN, 2016-04-14 - 17 p.
- Published in : Phys. Rev. D 93 (2016) 075021
APS Open Access article: PDF; Fulltext: arXiv:1502.05055 - PDF; 10.1103_PhysRevD.93.075021 - PDF; External link: Preprint
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New physics searches with heavy-ion collisions at the LHC
/ Bruce, Roderik (CERN) ; d'Enterria, David (CERN) ; de Roeck, Albert (CERN) ; Drewes, Marco (Louvain U., CP3) ; Farrar, Glennys R. (New York U., CCPP) ; Giammanco, Andrea (Louvain U., CP3) ; Gould, Oliver (Helsinki U.) ; Hajer, Jan (Louvain U., CP3) ; Harland-Lang, Lucian (Oxford U.) ; Heisig, Jan (Louvain U., CP3) et al.
This document summarises proposed searches for new physics accessible in the heavy-ion mode at the CERN Large Hadron Collider (LHC), both through hadronic and ultraperipheral $\gamma\gamma$ interactions, and that have a competitive or, even, unique discovery potential compared to standard proton-proton collision studies. Illustrative examples include searches for new particles -- such as axion-like pseudoscalars, radions, magnetic monopoles, new long-lived particles, dark photons, and sexaquarks as dark matter candidates -- as well as new interactions, such as non-linear or non-commutative QED extensions. [...]
arXiv:1812.07688.-
2020-05-19 - 20 p.
- Published in : J. Phys. G 47 (2020) 060501
Fulltext: fulltext1709994 - PDF; 1812.07688 - PDF; Fulltext from publisher: PDF;
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Resurrecting Hitomi for Decaying Dark Matter and Forecasting Leading Sensitivity for XRISM
/ Dessert, Christopher (New York U., CCPP ; Flatiron Inst., New York) ; Ning, Orion (UC, Berkeley ; LBL, Berkeley) ; Rodd, Nicholas L. (CERN) ; Safdi, Benjamin R. (UC, Berkeley ; LBL, Berkeley)
The Hitomi X-ray satellite mission carried unique high-resolution spectrometers that were set to revolutionize the search for sterile neutrino dark matter (DM) by looking for narrow X-ray lines arising from DM decays. Unfortunately, the satellite was lost shortly after launch, and to-date the only analysis using Hitomi for DM decay used data taken towards the Perseus cluster. [...]
arXiv:2305.17160; CERN-TH-2023-088.-
2024-05-24 - 7 p.
- Published in : Phys. Rev. Lett. 132 (2024) 211002
Fulltext: PDF;
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Centrality dependence of midrapidity density from GeV to TeV heavy-ion collisions in the effective-energy universality picture of hadroproduction
/ Sarkisyan, Edward K.G. (CERN ; Texas U., Arlington) ; Mishra, Aditya Nath (Indian Inst. Tech., Indore) ; Sahoo, Raghunath (Indian Inst. Tech., Indore) ; Sakharov, Alexander S. (CERN ; Marymount Manhattan Coll. ; New York U.)
The dependence on centrality, or on the number of nucleon participants, of the midrapidity density of charged particles measured in heavy-ion collisions at the collision energy of about 20 GeV at RHIC to the highest LHC energy of 5 TeV is investigated within the recently proposed effective-energy approach. This approach relates multihadron production in different types of collisions by combining, under the proper scaling of the collision energy, the constituent quark picture with Landau relativistic hydrodynamics. [...]
arXiv:1603.09040.-
2016-07-05 - 3 p.
- Published in : Phys. Rev. D 94 (2016) 011501(R)
Fulltext: PDF; Preprint: PDF; External link: Preprint
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First Constraints on Dark Photon Dark Matter with Superconducting Nanowire Detectors in an Optical Haloscope
/ Chiles, Jeff (NIST, Boulder) ; Charaev, Ilya (MIT) ; Lasenby, Robert (Stanford U., ITP) ; Baryakhtar, Masha (New York U., CCPP ; Washington U., Seattle) ; Huang, Junwu (Perimeter Inst. Theor. Phys.) ; Roshko, Alexana (NIST, Boulder) ; Burton, George (NIST, Boulder) ; Colangelo, Marco (MIT) ; Van Tilburg, Ken (New York U., CCPP ; Flatiron Inst., New York) ; Arvanitaki, Asimina (Perimeter Inst. Theor. Phys.) et al.
Uncovering the nature of dark matter is one of the most important goals of particle physics. [...]
arXiv:2110.01582.
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14 p.
Fulltext
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Scale invariant Volkov–Akulov supergravity
/ Ferrara, S. (CERN ; Frascati ; UCLA) ; Porrati, M. (CERN ; New York U., CCPP) ; Sagnotti, A. (CERN ; INFN, Pisa)
A scale invariant Goldstino theory coupled to Supergravity is obtained as a standard supergravity dual of a rigidly scale invariant higher--curvature Supergravity with a nilpotent chiral scalar curvature. The bosonic part of this theory describes a massless scalaron and a massive axion in a de Sitter Universe..
arXiv:1508.02939; CERN-PH-TH-2015-193.-
Geneva : CERN, 2015-09-02 - 3 p.
- Published in : Phys. Lett. B 749 (2015) 589-591
Article from SCOAP3: PDF; Fulltext: PDF; External link: Preprint
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