Search for long-lived neutral particles in pp collisions at   s√=13  TeV  that decay into displaced hadronic jets in the ATLAS calorimeter

Agni Bethani; Alexander Bitadze; Jonathan Crane; Cinzia Da Via; Nicholas Dann; Sam Dysch; Alessandra Forti; Emily Hanson; James Howarth; David Lack; Ivan Lopez Paz; Jiri Masik; Stephen Menary; Francisca Munoz Sanchez; Alexander Oh; Joleen Pater; Yvonne Peters; Rebecca Pickles; Andrew Pilkington; Darren Price; Yang Qin; Jacob Rawling; Nicolas Scharmberg; Savanna Shaw; Terence Wyatt

doi:10.1140/epjc/s10052-019-6962-6

Search for long-lived neutral particles in pp collisions at s√=13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter

Agni Bethani, Alexander Bitadze, Jonathan Crane, Cinzia Da Via, Nicholas Dann, Sam Dysch, Alessandra Forti, Emily Hanson, James Howarth, David Lack, Ivan Lopez Paz, Jiri Masik, Stephen Menary, Francisca Munoz Sanchez, Alexander Oh, Joleen Pater, Yvonne Peters, Rebecca Pickles, Andrew Pilkington, Darren PriceYang Qin, Jacob Rawling, Nicolas Scharmberg, Savanna Shaw, Terence Wyatt

Research output: Contribution to journal › Article › peer-review

Abstract

This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis considers neutral, long-lived scalars with masses between 5 and 400 GeV, produced from decays of heavy bosons with masses between 125 and 1000 GeV, where the long-lived scalars decay into Standard Model fermions. The analysis uses either 10.8 fb−1 or 33.0 fb−1 of data (depending on the trigger) recorded in 2016 at the LHC with the ATLAS detector in proton–proton collisions at a centre-of-mass energy of 13 TeV. No significant excess is observed, and limits are reported on the production cross section times branching ratio as a function of the proper decay length of the long-lived particles.

Original language	English
Journal	European Physical Journal C. Particles and Fields
Early online date	7 Jun 2019
DOIs	https://doi.org/10.1140/epjc/s10052-019-6962-6
Publication status	Published - 2019

Access to Document

10.1140/epjc/s10052-019-6962-6Licence: CC BY

Cite this

Bethani, A., Bitadze, A., Crane, J., Da Via, C., Dann, N., Dysch, S., Forti, A., Hanson, E., Howarth, J., Lack, D., Lopez Paz, I., Masik, J., Menary, S., Munoz Sanchez, F., Oh, A., Pater, J., Peters, Y., Pickles, R., Pilkington, A., ... Wyatt, T. (2019). Search for long-lived neutral particles in pp collisions at s√=13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter. European Physical Journal C. Particles and Fields. https://doi.org/10.1140/epjc/s10052-019-6962-6

@article{e2e882d4134543c8932ff59479758032,

title = "Search for long-lived neutral particles in pp collisions at s√=13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter",

abstract = "This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis considers neutral, long-lived scalars with masses between 5 and 400 GeV, produced from decays of heavy bosons with masses between 125 and 1000 GeV, where the long-lived scalars decay into Standard Model fermions. The analysis uses either 10.8 fb−1 or 33.0 fb−1 of data (depending on the trigger) recorded in 2016 at the LHC with the ATLAS detector in proton–proton collisions at a centre-of-mass energy of 13 TeV. No significant excess is observed, and limits are reported on the production cross section times branching ratio as a function of the proper decay length of the long-lived particles.",

author = "Agni Bethani and Alexander Bitadze and Jonathan Crane and {Da Via}, Cinzia and Nicholas Dann and Sam Dysch and Alessandra Forti and Emily Hanson and James Howarth and David Lack and {Lopez Paz}, Ivan and Jiri Masik and Stephen Menary and {Munoz Sanchez}, Francisca and Alexander Oh and Joleen Pater and Yvonne Peters and Rebecca Pickles and Andrew Pilkington and Darren Price and Yang Qin and Jacob Rawling and Nicolas Scharmberg and Savanna Shaw and Terence Wyatt",

year = "2019",

doi = "10.1140/epjc/s10052-019-6962-6",

language = "English",

journal = "European Physical Journal C. Particles and Fields",

issn = "1434-6044",

publisher = "Springer Nature",

}

Bethani, A, Bitadze, A, Crane, J, Da Via, C, Dann, N, Dysch, S, Forti, A, Hanson, E, Howarth, J, Lack, D, Lopez Paz, I, Masik, J, Menary, S, Munoz Sanchez, F , Oh, A, Pater, J, Peters, Y, Pickles, R, Pilkington, A , Price, D, Qin, Y, Rawling, J, Scharmberg, N, Shaw, S & Wyatt, T 2019, 'Search for long-lived neutral particles in pp collisions at s√=13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter', European Physical Journal C. Particles and Fields. https://doi.org/10.1140/epjc/s10052-019-6962-6

TY - JOUR

T1 - Search for long-lived neutral particles in pp collisions at s√=13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter

AU - Bethani, Agni

AU - Bitadze, Alexander

AU - Crane, Jonathan

AU - Da Via, Cinzia

AU - Dann, Nicholas

AU - Dysch, Sam

AU - Forti, Alessandra

AU - Hanson, Emily

AU - Howarth, James

AU - Lack, David

AU - Lopez Paz, Ivan

AU - Masik, Jiri

AU - Menary, Stephen

AU - Munoz Sanchez, Francisca

AU - Oh, Alexander

AU - Pater, Joleen

AU - Peters, Yvonne

AU - Pickles, Rebecca

AU - Pilkington, Andrew

AU - Price, Darren

AU - Qin, Yang

AU - Rawling, Jacob

AU - Scharmberg, Nicolas

AU - Shaw, Savanna

AU - Wyatt, Terence

PY - 2019

Y1 - 2019

N2 - This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis considers neutral, long-lived scalars with masses between 5 and 400 GeV, produced from decays of heavy bosons with masses between 125 and 1000 GeV, where the long-lived scalars decay into Standard Model fermions. The analysis uses either 10.8 fb−1 or 33.0 fb−1 of data (depending on the trigger) recorded in 2016 at the LHC with the ATLAS detector in proton–proton collisions at a centre-of-mass energy of 13 TeV. No significant excess is observed, and limits are reported on the production cross section times branching ratio as a function of the proper decay length of the long-lived particles.

AB - This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis considers neutral, long-lived scalars with masses between 5 and 400 GeV, produced from decays of heavy bosons with masses between 125 and 1000 GeV, where the long-lived scalars decay into Standard Model fermions. The analysis uses either 10.8 fb−1 or 33.0 fb−1 of data (depending on the trigger) recorded in 2016 at the LHC with the ATLAS detector in proton–proton collisions at a centre-of-mass energy of 13 TeV. No significant excess is observed, and limits are reported on the production cross section times branching ratio as a function of the proper decay length of the long-lived particles.

U2 - 10.1140/epjc/s10052-019-6962-6

DO - 10.1140/epjc/s10052-019-6962-6

M3 - Article

SN - 1434-6044

JO - European Physical Journal C. Particles and Fields

JF - European Physical Journal C. Particles and Fields

ER -

Search for long-lived neutral particles in pp collisions at s√=13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter

Abstract

Access to Document

Fingerprint

Cite this