Search for a Higgs Portal Scalar Decaying to Electron-Positron Pairs in the MicroBooNE Detector

Abratenko, P.; An, R.; Anthony, J.; Asaadi, J.; Ashkenazi, A.; Balasubramanian, S.; Baller, B.; Barnes, C.; Barr, G.; Basque, V.; Bathe-Peters, L.; Rodrigues, O. Benevides; Berkman, S.; Bhanderi, A.; Bhat, A.; Bishai, M.; Blake, A.; Bolton, T.; Book, Julia; Camilleri, L.; Caratelli, D.; Terrazas, I. Caro; Fernández, R. Castillo; Cavanna, F.; Cerati, G. B.; Chen, Y.; Cianci, D.; Conrad, J. M.; Convery, M. R.; Cooper-Troendle, L.; Crespo-Anadón, J. I.; Tutto, M. Del; Dennis, S. R.; Devitt, D.; Diurba, R.; Dorrill, R.; Duffy, K.; Dytman, S. A.; Eberly, B.; Ereditato, A.; Evans, Justin J.; Fine, R.; Aguirre, G. A. Fiorentini; Fitzpatrick, R. S.; Fleming, B. T.; Foppiani, N.; Franco, D.; Furmanski, A. P.; García-Gámez, D.; Gardiner, S.; Ge, G.; Gollapinni, S.; Goodwin, O.; Gramellini, E.; Green, P.; Greenlee, H.; Gu, W.; Guénette, R.; Guzowski, P.; Hagaman, L.; Hall, E.; Hen, O.; Horton-Smith, G. A.; Hourlier, A.; Itay, R.; James, C.; Ji, X.; Jiang, L.; Jo, J. H.; Johnson, R. A.; Jwa, Y.-J.; Kamp, N.; Kaneshige, N.; Karagiorgi, G.; Ketchum, W.; Kirby, M.; Kobilarcik, T.; Kreslo, I.; LaZur, R.; Lepetic, I.; Li, K.; Li, Y.; Lin, K.; Littlejohn, B. R.; Louis, W. C.; Luo, X.; Manivannan, K.; Mariani, C.; Marsden, D.; Marshall, J.; Caicedo, D. A. Martínez; Mason, K.; Mastbaum, A.; McConkey, N.; Meddage, V.; Mettler, T.; Miller, K.; Mills, J.; Mistry, K.; Mogan, A.; Mohayai, T.; Moon, J.; Mooney, M.; Moor, A. F.; Moore, C. D.; Lepin, L. Mora; Mousseau, J.; Murphy, M.; Naples, D.; Navrer-Agasson, A.; Neely, R. K.; Nowak, J.; Nunes, M. Soares; Palamara, O.; Paolone, V.; Papadopoulou, A.; Papavassiliou, V.; Pate, S. F.; Paudel, A.; Pavlović, Ž.; Piasetzky, E.; Ponce-Pinto, I. D.; Prince, S.; Qian, X.; Raaf, J. L.; Radeka, V.; Rafique, A.; Reggiani-Guzzo, M.; Ren, Lu; Rice, L. C. J.; Rochester, Lynn; Rondon, J. Rodriguez; Rogers, H. E.; Rosenberg, M.; Ross-Lonergan, M.; Scanavini, G.; Schmitz, D.; Schukraft, A.; Seligman, W.; Shaevitz, M. H.; Sharankova, R.; Shi, J. Y.; Siegel, Harrison; Sinclair, J.; Smith, A.; Snider, E. L.; Soderberg, M.; Söldner-Rembold, S.; Spentzouris, P.; Spitz, J.; Stancari, M.; John, J. St.; Strauss, T.; Sutton, K.; Sword-Fehlberg, S.; Szelc, A. M.; Tagg, N.; Tang, W.; Terao, K.; Thorpe, C.; Totani, D.; Toups, M.; Tsai, Y.-T.; Uchida, M. A.; Usher, T.; Pontseele, W. Van De; Viren, B.; Weber, M.; Wei, H.; Williams, Z.; Wolbers, S.; Wongjirad, T.; Wospakrik, M.; Wresilo, K.; Wright, N.; Wu, W.; Yandel, E.; Yang, T.; Yarbrough, G.; Yates, L. E.; Zeller, G. P.; Zennamo, J.; Zhang, C.

doi:10.1103/physrevlett.127.151803

Cited by 43 publications

(56 citation statements)

References 28 publications

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“…In this work we perform a numerical integration over all ALP trajectories, using the same detector dimensions and orientation with respect to the absorber as in Ref. [24]. However, for estimation purposes it is useful to neglect the dependence of P decay with the solid angle and write the expected number of events as…”

Section: Axion-like Particles At Microboonementioning

confidence: 99%

“…In order to determine the limit on the effective Wilson coefficients, we follow the same approach as in Ref. [24] and perform an unbinned χ 2 analysis, taking n bg = 1.9 as the expected total number of background events and n obs = 1 as the observed number of events 5 . We also include two nuisance parameters in order to account for systematic uncertainties affecting the overall normalization of the events for the signal (ξ s ) and background (ξ b ).…”

Section: Bounds From Current Microboone Datamentioning

confidence: 99%

“…In this paper we derive a new constraint on ALPs from recent data by the Micro-BooNE experiment [24]. In neutrino experiments using a conventional beam (such as MicroBooNE), most of the mesons produced in the proton collisions in the target are focused by the magnetic horns and decay within the decay pipe.…”

Section: Introductionmentioning

confidence: 99%

“…This fact was precisely used for the analysis performed in Ref. [24], where the MicroBooNE collaboration searched for monoenergetic scalars coming from the direction of the NuMI hadron absorber, located at a distance of only 100 m from the detector.…”

Section: Introductionmentioning

confidence: 99%

“…We then provide a recasting of the results of the MicroBooNE analysis in Ref. [24] and re-derive a competitive bound on the effective EW couplings of ALPs, using the same decay topology as in their analysis.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

New bounds on axion-like particles from MicroBooNE

Coloma,

Hernández,

Urrea

2022

Preprint

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Neutrino experiments lie at the edge of the intensity frontier and therefore can be exploited to search for new light particles weakly coupled to the visible sector. In this work we derive new constraints on axion-like particles (ALPs) using data from the MicroBooNE experiment, from a search for e + e − pairs pointing in the direction of the NuMI absorber. In particular, we consider the addition of higher-dimensional effective operators coupling the ALP to the electroweak gauge bosons. These would induce K → πa from kaon decay at rest in the NuMI absorber, as well as ALP decays into pairs of leptons or photons. We discuss in detail and compare various results obtained for the decay width K → πa in previous literature. For the operator involving the Higgs, MicroBooNE already sets competitive bounds (comparable to those of NA62) for ALP masses between 100 and 200 MeV. We also compute the expected sensitivities from the full NuMI dataset recorded at MicroBooNE. Our results show that a search for a a → γγ signal may be able to improve over current constraints from beam-dump experiments on the operator involving the ALP coupling to the W .

show abstract

Section: Axion-like Particles At Microboonementioning

confidence: 99%

Section: Bounds From Current Microboone Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

New bounds on axion-like particles from MicroBooNE

Coloma,

Hernández,

Urrea

2022

Preprint

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Searching for physics beyond the Standard Model in an off-axis DUNE near detector

Breitbach

Buonocore

Frugiuele

et al. 2022

J. High Energ. Phys.

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Next generation neutrino oscillation experiments like DUNE and T2HK are multi-purpose observatories, with a rich physics program beyond oscillation measurements. A special role is played by their near detector facilities, which are particularly well-suited to search for weakly coupled dark sector particles produced in the primary target. In this paper, we demonstrate this by estimating the sensitivity of the DUNE near detectors to the scattering of sub-GeV DM particles and to the decay of sub-GeV sterile neutrinos (“heavy neutral leptons”). We discuss in particular the importance of the DUNE-PRISM design, which allows some of the near detectors to be moved away from the beam axis. At such off-axis locations, the signal-to-background ratio improves for many new physics searches. We find that this leads to a dramatic boost in the sensitivity to boosted DM particles interacting mainly with hadrons, while for boosted DM interacting with leptons, data taken on-axis leads to marginally stronger exclusion limits. Searches for heavy neutral leptons perform equally well in both configurations.

show abstract

New bounds on axion-like particles from MicroBooNE

Coloma

Hernández

Urrea

2022

J. High Energ. Phys.

View full text Add to dashboard Cite

Neutrino experiments lie at the edge of the intensity frontier and therefore can be exploited to search for new light particles weakly coupled to the visible sector. In this work we derive new constraints on axion-like particles (ALPs) using data from the MicroBooNE experiment, from a search for e+e− pairs pointing in the direction of the NuMI absorber. In particular, we consider the addition of higher-dimensional effective operators coupling the ALP to the electroweak gauge bosons. These would induce K → πa from kaon decay at rest in the NuMI absorber, as well as ALP decays into pairs of leptons or photons. We discuss in detail and compare various results obtained for the decay width K → πa in previous literature. For the operator involving the Higgs, MicroBooNE already sets competitive bounds (comparable to those of NA62) for ALP masses between 100 and 200 MeV. We also compute the expected sensitivities from the full NuMI dataset recorded at MicroBooNE. Our results show that a search for a a → γγ signal may be able to improve over current constraints from beam-dump experiments on the operator involving the ALP coupling to the W.

show abstract

Search for a Higgs Portal Scalar Decaying to Electron-Positron Pairs in the MicroBooNE Detector

Cited by 43 publications

References 28 publications

New bounds on axion-like particles from MicroBooNE

New bounds on axion-like particles from MicroBooNE

Searching for physics beyond the Standard Model in an off-axis DUNE near detector

New bounds on axion-like particles from MicroBooNE

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