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1.
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Detection of Early-Universe Gravitational Wave Signatures and Fundamental Physics
/ Caldwell, Robert (Dartmouth Coll.) ; Cui, Yanou (UC, Riverside) ; Guo, Huai-Ke (U. Utah, Salt Lake City) ; Mandic, Vuk (Minnesota U.) ; Mariotti, Alberto (Brussels U., IIHE) ; No, Jose Miguel (Madrid, IFT) ; Ramsey-Musolf, Michael J. (Shanghai Jiao Tong U.) ; Sakellariadou, Mairi (King's Coll. London) ; Sinha, Kuver (U. Oklahoma, Norman) ; Wang, Lian-Tao (Chicago U.) et al.
Detection of a gravitational-wave signal of non-astrophysical origin would be a landmark discovery, potentially providing a significant clue to some of our most basic, big-picture scientific questions about the Universe. In this white paper, we survey the leading early-Universe mechanisms that may produce a detectable signal -- including inflation, phase transitions, topological defects, as well as primordial black holes -- and highlight the connections to fundamental physics. [...]
arXiv:2203.07972.-
2022-11-30 - 67 p.
Fulltext: 2203.07972 - PDF; document - PDF; External link: eConf
In : 2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.
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2.
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The muon Smasher’s guide
/ Al Ali, Hind (UC, Santa Barbara) ; Arkani-Hamed, Nima (Princeton, Inst. Advanced Study) ; Banta, Ian (UC, Santa Barbara) ; Benevedes, Sean (UC, Santa Barbara) ; Buttazzo, Dario (INFN, Pisa) ; Cai, Tianji (UC, Santa Barbara) ; Cheng, Junyi (UC, Santa Barbara) ; Cohen, Timothy (Oregon U.) ; Craig, Nathaniel (UC, Santa Barbara) ; Ekhterachian, Majid (Maryland U.) et al.
We lay out a comprehensive physics case for a future high-energy muon collider, exploring a range of collision energies (from 1 to 100 TeV) and luminosities. We highlight the advantages of such a collider over proposed alternatives. [...]
arXiv:2103.14043.-
2022-07-05 - 105 p.
- Published in : Rep. Prog. Phys. 85 (2022) 084201
Fulltext: PDF;
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3.
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4.
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Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
/ Alimena, Juliette (Ohio State U.) ; Beacham, James (Duke U.) ; Borsato, Martino (Heidelberg U.) ; Cheng, Yangyang (Cornell U., LNS) ; Cid Vidal, Xabier (Santiago de Compostela U.) ; Cottin, Giovanna (Adolfo Ibanez U. ; Chile U., Catolica ; Taiwan, Natl. Taiwan U.) ; De Roeck, Albert (CERN) ; Desai, Nishita (Tata Inst.) ; Curtin, David (Toronto U.) ; Evans, Jared A. (Cincinnati U.) et al.
Particles beyond the Standard Model (SM) can generically have lifetimes that are long compared to SM particles at the weak scale. When produced at experiments such as the Large Hadron Collider (LHC) at CERN, these long-lived particles (LLPs) can decay far from the interaction vertex of the primary proton-proton collision. [...]
arXiv:1903.04497.-
2020-09-08 - 201 p.
- Published in : J. Phys. G 47 (2020) 090501
Fulltext: 1903.04497 - PDF; fermilab-pub-19-110-cd-ppd - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server (fulltext available)
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5.
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Report from Working Group 3 : Beyond the Standard Model physics at the HL-LHC and HE-LHC
/ Cid Vidal, Xabier (Santiago de Compostela U., IGFAE) ; D'Onofrio, Monica (Liverpool U.) ; Fox, Patrick J (Fermilab) ; Torre, Riccardo (CERN ; INFN, Genoa) ; Ulmer, Keith A (Colorado U.) ; Aboubrahim, Amin (Northeastern U.) ; Albert, Andreas (RWTH Aachen U.) ; Alimena, Juliette (Ohio State U., Columbus (main)) ; Allanach, Benjamin C (Cambridge U., DAMTP) ; Alpigiani, Cristiano (Washington U., Seattle) et al.
This is the third out of five chapters of the final report [1] of the Workshop on Physics at HL-LHC, and perspectives on HE-LHC [2]. It is devoted to the study of the potential, in the search for Beyond the Standard Model (BSM) physics, of the High Luminosity (HL) phase of the LHC, defined as $3$ ab$^{-1}$ of data taken at a centre-of-mass energy of 14 TeV, and of a possible future upgrade, the High Energy (HE) LHC, defined as $15$ ab$^{-1}$ of data at a centre-of-mass energy of 27 TeV. [...]
arXiv:1812.07831; CERN-LPCC-2018-05.-
Geneva : CERN, 2019-12-02 - 281 p.
- Published in : CERN Yellow Rep. Monogr. 7 (2019) 585-865
Fulltext: PDF; arXiv: PDF; External link: Published Fulltext
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.585-865
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6.
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R-axion at colliders
/ Bellazzini, Brando (IPhT, Saclay ; Padua U.) ; Mariotti, Alberto (Brussels U., IIHE ; Intl. Solvay Inst., Brussels) ; Redigolo, Diego (Tel Aviv U. ; Weizmann Inst.) ; Sala, Filippo (Paris, LPTHE) ; Serra, Javi (CERN)
We study the effective theory of a generic class of hidden sectors where supersymmetry is broken together with an approximate R-symmetry at low energy. The light spectrum contains the gravitino and the pseudo-Nambu-Goldstone boson of the R-symmetry, the R-axion. [...]
arXiv:1702.02152; CERN-TH-2017-032; Saclay-t17/014.-
2017-10-05 - 6 p.
- Published in : Phys. Rev. Lett. 119 (2017) 141804
Fulltext: 10.1103_PhysRevLett.119.141804 - PDF; arXiv:1702.02152 - PDF;
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7.
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SUSY Meets Her Twin
/ Katz, Andrey (CERN ; Geneva U., CAP) ; Mariotti, Alberto (Brussels U., IIHE) ; Pokorski, Stefan (Warsaw U.) ; Redigolo, Diego (Tel Aviv U. ; Weizmann Inst.) ; Ziegler, Robert (Karlsruhe U., TTP)
We investigate the general structure of mirror symmetry breaking in the Twin Higgs scenario. We show, using the IR effective theory, that a significant gain in fine tuning can be achieved if the symmetry is broken hardly. [...]
arXiv:1611.08615; CERN-TH-2016-240; TTP16-054.-
2017-01-31 - 54 p.
- Published in : JHEP 01 (2017) 142
Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF;
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8.
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Multilepton signals of gauge mediated supersymmetry breaking at the LHC
/ D'Hondt, Jorgen (Brussels U., IIHE ; Vrije U., Brussels ; Intl. Solvay Inst., Brussels) ; De Causmaecker, Karen (Brussels U., IIHE ; Vrije U., Brussels ; Intl. Solvay Inst., Brussels ; CERN) ; Fuks, Benjamin (CERN ; Strasbourg, IPHC) ; Mariotti, Alberto (Durham U., IPPP) ; Mawatari, Kentarou (Brussels U., IIHE ; Vrije U., Brussels ; Intl. Solvay Inst., Brussels) ; Petersson, Christoffer (Intl. Solvay Inst., Brussels ; Brussels U., PTM ; Chalmers U. Tech.) ; Redigolo, Diego (Intl. Solvay Inst., Brussels ; Brussels U., PTM)
We investigate multilepton LHC signals arising from electroweak processes involving sleptons. We consider the framework of general gauge mediated supersymmetry breaking, focusing on models where the low mass region of the superpartner spectrum consists of the three generations of charged sleptons and the nearly massless gravitino. [...]
arXiv:1310.0018; CERN-PH-TH-2013-229; DCPT-13-154; IPPP-13-77; CERN-PH-TH-2013-229; DCPT-13-154; IPPP-13-77.-
2014-04-04 - 6 p.
- Published in : Phys. Lett. B 731 (2014) 7
Article from SCOAP3: PDF; Elsevier Open Access article: PDF; Fulltext: S0370269314001075 - XML; arXiv:1310.0018 - PDF; External link: Preprint
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9.
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Metastable vacua and geometric deformations
/ Amariti, Antonio (Milan Bicocca U. ; INFN, Milan Bicocca) ; Forcella, Davide (SISSA, Trieste ; INFN, Trieste ; CERN) ; Girardello, Luciano (Milan Bicocca U. ; INFN, Milan Bicocca) ; Mariotti, Alberto (Milan Bicocca U. ; INFN, Milan Bicocca ; Saclay, SPhT ; Paris, LPTHE)
We study the geometric interpretation of metastable vacua for systems of D3 branes at non isolated toric deformable singularities. Using the L^{aba} examples, we investigate the relations between the field theoretic susy breaking and restoration and the complex deformations of the CY singularities..
arXiv:0803.0514; CERN-PH-TH-2008-039; SISSA-10-2008-EP; CERN-PH-TH-2008-039; SISSA-10-2008-EP.-
Geneva : CERN, 2008 - 45 p.
- Published in : JHEP 12 (2008) 079
Fulltext: JHEP12(2008)079 - PDF; arXiv:0803.0514 - PDF; SISSA/IOP Open Access article: PDF; External link: Preprint
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