Quasistable charginos in ultraperipheral proton-proton collisions at the LHC

Self Cite

Ultraperipheral collisions of high energy protons are a source of approximately real photons colliding with each other. Photon fusion can result in production of yet unknown charged particles in very clean events. The cleanliness of such an event is due to the requirement that the protons survive during the collision. Finite sizes of the protons reduce the probability of such outcome compared to point-like particles. We calculate the survival factors and cross sections for the production of heavy charged particles at the Large Hadron Collider.

“…The corresponding cross section is presented in figure 2 of ref. [36]. 5 From figure 4 we see that the cross section obtained in ref.…”

Section: Production Of Heavy Charged Particlesmentioning

confidence: 73%

Section: Production Of Heavy Charged Particlesmentioning

confidence: 99%

Section: Production Of Heavy Charged Particlesmentioning

confidence: 99%

Section: Jhep10(2021)234mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Production of heavy charged particles in proton-proton ultraperipheral collisions at the Large Hadron Collider: survival factor

Годунов

Novikov

Rozanov

et al. 2021

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gamma-UPC: automated generation of exclusive photon-photon processes in ultraperipheral proton and nuclear collisions with varying form factors

Shao

d’Enterria

2022

The automated generation of arbitrary exclusive final states produced via photon fusion in ultraperipheral high-energy collisions of protons and/or nuclei, A B $$ \overset{\upgamma \upgamma}{\to } $$ → γγ A X B, is implemented in the MadGraph5_aMC@NLO and HELAC-Onia Monte Carlo codes. Cross sections are calculated in the equivalent photon approximation using γ fluxes derived from electric dipole and charge form factors, and incorporating hadronic survival probabilities. Multiple examples of γγ cross sections computed with this setup, named gamma-UPC, are presented for proton-proton, proton- nucleus, and nucleus-nucleus ultraperipheral collisions (UPCs) at the Large Hadron Collider and Future Circular Collider. Total photon-fusion cross sections for the exclusive production of spin-0, 2 resonances (quarkonia, ditauonium, and Higgs boson; as well as axions and gravitons), and for pairs of particles (J/ψJ/ψ, WW, ZZ, Zγ, $$ t\overline{t} $$ t t ¯ , HH) are presented. Differential cross sections for exclusive dileptons and light-by-light scattering are compared to LHC data. This development paves the way for the upcoming automatic event generation of any UPC final state with electroweak corrections at next-to-leading-order accuracy and beyond.

Probing compressed higgsinos with forward protons at the LHC

Zhou

Liu

2022

Supersymmetric models with nearly-degenerate light higgsinos provide a consistent solution to the naturalness problem under rigorous constraints from current experimental searches for sparticles. However, it is challenging to probe the compressed scenarios at collider experiments due to the hard-to-detect soft final states. To overcome this issue, strategies have been proposed to take advantage of the photon fusion along the ultraperipheral collision at the Large Hadron Collider, which are feasible with the forward detectors installed at the ATLAS and CMS detectors. In this paper, we demonstrate a search strategy for the chargino pair production via photon fusion at the 13 TeV LHC, realizing a good sensitivity that can exclude $$ {m}_{{\overset{\sim }{\chi}}_1^{\pm }} $$ m χ ~ 1 ± up to 270 GeV (308 GeV) for a mass splitting ∆m($$ {\overset{\sim }{\chi}}_1^{\pm } $$ χ ~ 1 ± ,$$ {\overset{\sim }{\chi}}_1^0 $$ χ ~ 1 0 ) ∈ [1, 15] GeV with an integrated luminosity of 100 fb−1 (3 ab−1) at 95% C.L.