Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV

A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a τ lepton, is presented. The search considers final states with an electron or a muon, one or two τ leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton–prot...

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Main Authors: CMS Collaboration, Abercrombie, Daniel Robert, Allen, Brandon Leigh, Azzolini, Virginia, Barbieri, Richard Alexander, Baty, Austin Alan, Bauer, Gerry P, Bi, Ran, Brandt, Stephanie Akemi, Busza, Wit, Cali, Ivan Amos, D'Alfonso, Mariarosaria, Demiragli, Zeynep, Gomez-Ceballos, Guillelmo, Goncharov, Maxim, Harris, Philip Coleman, Hsu, Dylan George, Hu, Miao, Iiyama, Yutaro, Innocenti, Gian Michele, Klute, Markus, Kovalskyi, Dmytro, Lee, Yen-Jie, Levin, Andrew Michael, Luckey Jr, P David, Maier, Benedikt, Marini, Andrea Carlo, McGinn, Christopher Francis, Mironov, Camelia Maria, Narayanan, Siddharth Madhavan, Niu, Xinmei, Paus, Christoph M. E., Roland, Christof E, Roland, Gunther M, Salfeld-Nebgen, Jakob Maxillian Henry, Stephans, George S. F., Sumorok, Konstanty C, Tatar, Kaya, Velicanu, Dragos Alexandru, Wang, Jing, Wang, Ta-Wei, Wyslouch, Boleslaw, Zhaozhong, S.
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: Springer Berlin Heidelberg 2018
Online Access:http://hdl.handle.net/1721.1/117763
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author CMS Collaboration
Abercrombie, Daniel Robert
Allen, Brandon Leigh
Azzolini, Virginia
Barbieri, Richard Alexander
Baty, Austin Alan
Bauer, Gerry P
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
D'Alfonso, Mariarosaria
Demiragli, Zeynep
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Harris, Philip Coleman
Hsu, Dylan George
Hu, Miao
Iiyama, Yutaro
Innocenti, Gian Michele
Klute, Markus
Kovalskyi, Dmytro
Lee, Yen-Jie
Levin, Andrew Michael
Luckey Jr, P David
Maier, Benedikt
Marini, Andrea Carlo
McGinn, Christopher Francis
Mironov, Camelia Maria
Narayanan, Siddharth Madhavan
Niu, Xinmei
Paus, Christoph M. E.
Roland, Christof E
Roland, Gunther M
Salfeld-Nebgen, Jakob Maxillian Henry
Stephans, George S. F.
Sumorok, Konstanty C
Tatar, Kaya
Velicanu, Dragos Alexandru
Wang, Jing
Wang, Ta-Wei
Wyslouch, Boleslaw
Zhaozhong, S.
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
CMS Collaboration
Abercrombie, Daniel Robert
Allen, Brandon Leigh
Azzolini, Virginia
Barbieri, Richard Alexander
Baty, Austin Alan
Bauer, Gerry P
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
D'Alfonso, Mariarosaria
Demiragli, Zeynep
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Harris, Philip Coleman
Hsu, Dylan George
Hu, Miao
Iiyama, Yutaro
Innocenti, Gian Michele
Klute, Markus
Kovalskyi, Dmytro
Lee, Yen-Jie
Levin, Andrew Michael
Luckey Jr, P David
Maier, Benedikt
Marini, Andrea Carlo
McGinn, Christopher Francis
Mironov, Camelia Maria
Narayanan, Siddharth Madhavan
Niu, Xinmei
Paus, Christoph M. E.
Roland, Christof E
Roland, Gunther M
Salfeld-Nebgen, Jakob Maxillian Henry
Stephans, George S. F.
Sumorok, Konstanty C
Tatar, Kaya
Velicanu, Dragos Alexandru
Wang, Jing
Wang, Ta-Wei
Wyslouch, Boleslaw
Zhaozhong, S.
author_sort CMS Collaboration
collection MIT
description A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a τ lepton, is presented. The search considers final states with an electron or a muon, one or two τ leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton–proton collisions at √s = 13 TeV with the CMS detector at the LHC, and correspond to an integrated luminosity of 35.9fb⁻¹. No evidence for pair production of LQs is found. Assuming a branching fraction of unity for the decay LQ→tτ, upper limits on the production cross section are set as a function of LQ mass, excluding masses below 900GeV at 95% confidence level. These results provide the most stringent limits to date on the production of scalar LQs that decay to a top quark and a τ lepton.
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spelling mit-1721.1/1177632022-09-30T14:40:09Z Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV CMS Collaboration Abercrombie, Daniel Robert Allen, Brandon Leigh Azzolini, Virginia Barbieri, Richard Alexander Baty, Austin Alan Bauer, Gerry P Bi, Ran Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Demiragli, Zeynep Gomez-Ceballos, Guillelmo Goncharov, Maxim Harris, Philip Coleman Hsu, Dylan George Hu, Miao Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, Siddharth Madhavan Niu, Xinmei Paus, Christoph M. E. Roland, Christof E Roland, Gunther M Salfeld-Nebgen, Jakob Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Tatar, Kaya Velicanu, Dragos Alexandru Wang, Jing Wang, Ta-Wei Wyslouch, Boleslaw Zhaozhong, S. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Abercrombie, Daniel Robert Allen, Brandon Leigh Azzolini, Virginia Barbieri, Richard Alexander Baty, Austin Alan Bauer, Gerry P Bi, Ran Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Demiragli, Zeynep Gomez-Ceballos, Guillelmo Goncharov, Maxim Harris, Philip Coleman Hsu, Dylan George Hu, Miao Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, Siddharth Madhavan Niu, Xinmei Paus, Christoph M. E. Roland, Christof E Roland, Gunther M Salfeld-Nebgen, Jakob Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Tatar, Kaya Velicanu, Dragos Alexandru Wang, Jing Wang, Ta-Wei Wyslouch, Boleslaw Zhaozhong, S. A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a τ lepton, is presented. The search considers final states with an electron or a muon, one or two τ leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton–proton collisions at √s = 13 TeV with the CMS detector at the LHC, and correspond to an integrated luminosity of 35.9fb⁻¹. No evidence for pair production of LQs is found. Assuming a branching fraction of unity for the decay LQ→tτ, upper limits on the production cross section are set as a function of LQ mass, excluding masses below 900GeV at 95% confidence level. These results provide the most stringent limits to date on the production of scalar LQs that decay to a top quark and a τ lepton. 2018-09-14T16:54:37Z 2018-09-14T16:54:37Z 2018-09 2018-03 Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/117763 Sirunyan, A. M. et al. “Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV.” The European Physical Journal C 78, 9 (September 2018): 707 © 2018 CERN for the benefit of the CMS collaboration https://orcid.org/0000-0003-0293-1944 https://orcid.org/0000-0002-4371-2038 https://orcid.org/0000-0002-7945-005X https://orcid.org/0000-0001-5310-3466 https://orcid.org/0000-0003-3951-4634 https://orcid.org/0000-0002-8590-2673 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0002-2822-3375 https://orcid.org/0000-0002-7409-7904 https://orcid.org/0000-0001-8521-737X https://orcid.org/0000-0001-8189-3741 https://orcid.org/0000-0002-8696-1747 https://orcid.org/0000-0002-8297-5930 https://orcid.org/0000-0003-4511-0855 https://orcid.org/0000-0002-0869-5631 https://orcid.org/0000-0002-6923-293X https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-1136-6900 https://orcid.org/0000-0003-2351-0487 https://orcid.org/0000-0003-1281-0193 https://orcid.org/0000-0002-8599-2437 https://orcid.org/0000-0003-2723-3560 https://orcid.org/0000-0001-7842-1591 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0002-7312-5854 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0003-3879-5622 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0002-6448-0168 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0001-5259-1883 https://orcid.org/0000-0002-0899-7621 https://orcid.org/0000-0003-3681-0649 en_US https://doi.org/10.1140/epjc/s10052-018-6143-z European Physical Journal C: Particles and Fields Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer Berlin Heidelberg Springer
spellingShingle CMS Collaboration
Abercrombie, Daniel Robert
Allen, Brandon Leigh
Azzolini, Virginia
Barbieri, Richard Alexander
Baty, Austin Alan
Bauer, Gerry P
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
D'Alfonso, Mariarosaria
Demiragli, Zeynep
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Harris, Philip Coleman
Hsu, Dylan George
Hu, Miao
Iiyama, Yutaro
Innocenti, Gian Michele
Klute, Markus
Kovalskyi, Dmytro
Lee, Yen-Jie
Levin, Andrew Michael
Luckey Jr, P David
Maier, Benedikt
Marini, Andrea Carlo
McGinn, Christopher Francis
Mironov, Camelia Maria
Narayanan, Siddharth Madhavan
Niu, Xinmei
Paus, Christoph M. E.
Roland, Christof E
Roland, Gunther M
Salfeld-Nebgen, Jakob Maxillian Henry
Stephans, George S. F.
Sumorok, Konstanty C
Tatar, Kaya
Velicanu, Dragos Alexandru
Wang, Jing
Wang, Ta-Wei
Wyslouch, Boleslaw
Zhaozhong, S.
Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV
title Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV
title_full Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV
title_fullStr Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV
title_full_unstemmed Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV
title_short Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV
title_sort search for third generation scalar leptoquarks decaying to a top quark and a τ lepton at √s 13 tev
url http://hdl.handle.net/1721.1/117763
https://orcid.org/0000-0003-0293-1944
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