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1.
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Lepto-axiogenesis and the scale of supersymmetry
/ Barnes, Patrick (Michigan U., LCTP) ; Co, Raymond T. (Minnesota U., Theor. Phys. Inst.) ; Harigaya, Keisuke (CERN) ; Pierce, Aaron (Michigan U., LCTP)
If the Peccei-Quinn field containing the QCD axion undergoes rotations in the early universe, the dimension-five operator responsible for neutrino masses can generate a lepton asymmetry that ultimately gives rise to the observed baryon asymmetry of the Universe. This lepto-axiogenesis scenario requires a flat potential for the radial direction of the Peccei-Quinn field, naturally realized in supersymmetric models. [...]
arXiv:2208.07878; LCTP-22-12; UMN-TH-4130/22; FTPI-MINN-22-21; CERN-TH-2022-136.-
2023-05-15 - 59 p.
- Published in : JHEP 2305 (2023) 114
Fulltext: 2208.07878 - PDF; document - PDF;
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2.
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Cosmic Perturbations from a Rotating Field
/ Co, Raymond T. (Minnesota U.) ; Harigaya, Keisuke (CERN) ; Pierce, Aaron (Michigan U., MCTP)
Complex scalar fields charged under approximate $U(1)$ symmetries appear in well-motivated extensions of the Standard Model. One example is the field that contains the QCD axion field associated with the Peccei-Quinn symmetry; others include flat directions in supersymmetric theories with baryon, lepton, or flavor charges. [...]
arXiv:2202.01785; UMN-TH-4113/22; FTPI-MINN-22-04; CERN-TH-2022-007; LCTP-22-02.-
2022-10-11 - 47 p.
- Published in : JCAP 10 (2022) 037
Fulltext: PDF;
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3.
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4.
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R-Parity Violation Axiogenesis
/ Co, Raymond T. (Minnesota U., Theor. Phys. Inst.) ; Harigaya, Keisuke (CERN ; Princeton, Inst. Advanced Study) ; Johnson, Zachary (Michigan U., LCTP) ; Pierce, Aaron (Michigan U., LCTP)
We show that the rotation of the QCD axion field, aided by $B-L$ violation from supersymmetric $R$-parity violating couplings, can yield the observed baryon abundance. Strong sphaleron processes transfer the angular momentum of the axion field into a quark chiral asymmetry, which $R$-parity violating couplings convert to the baryon asymmetry of the Universe. [...]
arXiv:2110.05487; UMN-TH-4104/21; FTPI-MINN-21-21; CERN-TH-2021-147; LCTP-21-25.-
2021-11-26 - 51 p.
- Published in : JHEP 2111 (2021) 210
Fulltext: 2110.05487 - PDF; document - PDF;
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5.
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Indirect detection of secluded supersymmetric dark matter
/ Barnes, Patrick (Michigan U., LCTP) ; Johnson, Zachary (Michigan U., LCTP) ; Pierce, Aaron (Michigan U., LCTP) ; Shakya, Bibhushan (DESY ; CERN)
Weak-scale secluded sector dark matter can reproduce the observed dark matter relic density with thermal freeze-out within that sector. If nature is supersymmetric, three portals to the visible sector - a gauge portal, a Higgs portal, and a gaugino portal - are present. [...]
arXiv:2106.09740; CERN-TH-2021-089; DESY-21-091; DESY 21-091; LCTP-21-13.-
2022-02-01 - 30 p.
- Published in : Phys. Rev. D 105 (2022) 035005
Fulltext: 2106.09740 - PDF; PhysRevD.105.035005 - PDF;
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6.
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Simple Hidden Sector Dark Matter
/ Barnes, Patrick (Michigan U., LCTP) ; Johnson, Zachary (Michigan U., LCTP) ; Pierce, Aaron (Michigan U., LCTP) ; Shakya, Bibhushan (CERN)
A hidden sector that kinetically mixes with the Minimal Supersymmetric Standard Model provides simple and well-motivated dark matter candidates that possess many of the properties of a traditional weakly interacting massive particle (WIMP). These supersymmetric constructions can also provide a natural explanation for why the dark matter is at the weak scale - even if it resides in a hidden sector. [...]
arXiv:2003.13744; LCTP-20-05; CERN-TH-2020-024.-
2020-10-17 - 19 p.
- Published in : Phys. Rev. D 102 (2020) 075019
Article from SCOAP3: PDF; Fulltext: PDF;
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7.
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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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8.
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9.
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Top asymmetry and the search for a light hadronic resonance in association with single top
/ Jung, Sunghoon (Michigan U., MCTP) ; Pierce, Aaron (Michigan U., MCTP) ; Wells, James D. (Michigan U., MCTP ; CERN)
The exchange of a light $t$-channel flavor-changing gauge boson, $\Vp$, with mass $\sim m_{top}$ remains a leading explanation for the anomalous forward backward asymmetry in top quark production at the Tevatron. Unlike other ideas, including heavier $t$-channel mediators, the light $\Vp$ model is not easily seen in the $\mtt$ distribution. [...]
arXiv:1108.1802; CERN-PH-TH-2011-198.-
2011 - 5 p.
- Published in : Phys. Rev. D 84 (2011) 091502
APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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10.
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Top quark asymmetry and dijet resonances
/ Jung, Sunghoon (Michigan U., MCTP ; Michigan U.) ; Pierce, Aaron (Michigan U., MCTP ; Michigan U.) ; Wells, James D. (Michigan U., MCTP ; Michigan U. ; CERN)
CDF recently reported an anomaly in the $m_{jj}$ distribution of dijet events produced in association with a $W$ boson. If this anomaly is associated with a new flavor conserving vector resonance, $V$, one might have expected to observe effects in the analogous $m_{jj}$ distribution produced in association with a $\gamma$. [...]
arXiv:1104.3139; MCTP-11-18; CERN-PH-TH-2011-085; CERN-PH-TH-2011-085.-
2011 - 4 p.
- Published in : Phys. Rev. D 84 (2011) 055018
APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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