A search is performed for localized excesses in the low-mass dijet invariant mass distribution, targeting a hypothetical new particle decaying into two jets and produced in association with either a high transverse momentum photon or a jet. The search uses the full Run 2 data sample from LHC proton-proton collisions collected by the ATLAS experiment at a center-of-mass energy of 13 TeV during 2015-2018. Two variants of the search are presented for each type of initial-state radiation: one that makes no jet flavor requirements and one that requires both of the jets to have been identified as containing Formula Presented-hadrons. No excess is observed relative to the Standard Model prediction, and the data are used to set upper limits on the production cross section for a benchmark Formula Presented model and, separately, for generic, beyond the Standard Model scenarios which might produce a Gaussian-shaped contribution to dijet invariant mass distributions. The results extend the current constraints on dijet resonances to the mass range between 200 and 650 GeV.

Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at Formula Presented with the ATLAS detector / Filmer, E.K., Grant, C.M., Jackson, P., Kong, A.X.Y., Pandya, H.D., Potti, H., Ruggeri, T.A., Saha, S., Ting, E.X.L., White, M.J., Gingrich, D.M., Lindon, J.H., Nishu, N., Pinfold, J.L., Cakir, O., Canbay, A.C., Yildiz, H.D., Kuday, S., Turk Cakir, I., Sultansoy, S., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 110:3(2024). [10.1103/PhysRevD.110.032002]

Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at Formula Presented with the ATLAS detector

Cristoforetti M.;Di Luca A.;Follega F. M.;Iuppa R.;Mascione D.;Ricci E.;
2024-01-01

Abstract

A search is performed for localized excesses in the low-mass dijet invariant mass distribution, targeting a hypothetical new particle decaying into two jets and produced in association with either a high transverse momentum photon or a jet. The search uses the full Run 2 data sample from LHC proton-proton collisions collected by the ATLAS experiment at a center-of-mass energy of 13 TeV during 2015-2018. Two variants of the search are presented for each type of initial-state radiation: one that makes no jet flavor requirements and one that requires both of the jets to have been identified as containing Formula Presented-hadrons. No excess is observed relative to the Standard Model prediction, and the data are used to set upper limits on the production cross section for a benchmark Formula Presented model and, separately, for generic, beyond the Standard Model scenarios which might produce a Gaussian-shaped contribution to dijet invariant mass distributions. The results extend the current constraints on dijet resonances to the mass range between 200 and 650 GeV.
2024
3
Filmer, E. K.; Grant, C. M.; Jackson, P.; Kong, A. X. Y.; Pandya, H. D.; Potti, H.; Ruggeri, T. A.; Saha, S.; Ting, E. X. L.; White, M. J.; Gingrich, ...espandi
Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at Formula Presented with the ATLAS detector / Filmer, E.K., Grant, C.M., Jackson, P., Kong, A.X.Y., Pandya, H.D., Potti, H., Ruggeri, T.A., Saha, S., Ting, E.X.L., White, M.J., Gingrich, D.M., Lindon, J.H., Nishu, N., Pinfold, J.L., Cakir, O., Canbay, A.C., Yildiz, H.D., Kuday, S., Turk Cakir, I., Sultansoy, S., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 110:3(2024). [10.1103/PhysRevD.110.032002]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/426070
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