Reconstruction and identification of boosted di-tau systems in a search for Higgs boson pairs using 13 TeV proton-proton collision data in ATLAS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73604040" target="_blank" >RIV/61989592:15310/20:73604040 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/20:00346668 RIV/68407700:21340/20:00346668 RIV/68407700:21670/20:00346668 RIV/00216208:11320/20:10423727

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2FJHEP11%282020%29163" target="_blank" >https://link.springer.com/article/10.1007%2FJHEP11%282020%29163</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP11(2020)163" target="_blank" >10.1007/JHEP11(2020)163</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reconstruction and identification of boosted di-tau systems in a search for Higgs boson pairs using 13 TeV proton-proton collision data in ATLAS

Popis výsledku v původním jazyce

In this paper, a new technique for reconstructing and identifying hadronically decaying tau (+)tau (-) pairs with a large Lorentz boost, referred to as the di-tau tagger, is developed and used for the first time in the ATLAS experiment at the Large Hadron Collider. A benchmark di-tau tagging selection is employed in the search for resonant Higgs boson pair production, where one Higgs boson decays into a boosted bb&lt;mml:mo stretchy=&quot;true&quot;&gt;&lt;overbar&gt;&lt;/mml:mover&gt; pair and the other into a boosted tau (+)tau (-) pair, with two hadronically decaying tau -leptons in the final state. Using 139 fb(-1) of proton-proton collision data recorded at a centre-of-mass energy of 13 TeV, the efficiency of the di-tau tagger is determined and the background with quark- or gluon-initiated jets misidentified as di-tau objects is estimated. The search for a heavy, narrow, scalar resonance produced via gluon-gluon fusion and decaying into two Higgs bosons is carried out in the mass range 1-3 TeV using the same dataset. No deviations from the Standard Model predictions are observed, and 95% confidence-level exclusion limits are set on this model.&lt;fig id=&quot;Figa&quot; position=&quot;anchor&quot;&gt;&lt;graphic position=&quot;anchor&quot; specific-use=&quot;HTML&quot; mime-subtype=&quot;JPEG&quot; xmlns:xlink=&quot;http://www.w3.org/1999/xlink&quot; xlink:href=&quot;MediaObjects/13130_2020_14279_Figa_HTML.jpg&quot; id=&quot;MO1&quot;&gt;&lt;/graphic

Název v anglickém jazyce

Reconstruction and identification of boosted di-tau systems in a search for Higgs boson pairs using 13 TeV proton-proton collision data in ATLAS

Popis výsledku anglicky

In this paper, a new technique for reconstructing and identifying hadronically decaying tau (+)tau (-) pairs with a large Lorentz boost, referred to as the di-tau tagger, is developed and used for the first time in the ATLAS experiment at the Large Hadron Collider. A benchmark di-tau tagging selection is employed in the search for resonant Higgs boson pair production, where one Higgs boson decays into a boosted bb&lt;mml:mo stretchy=&quot;true&quot;&gt;&lt;overbar&gt;&lt;/mml:mover&gt; pair and the other into a boosted tau (+)tau (-) pair, with two hadronically decaying tau -leptons in the final state. Using 139 fb(-1) of proton-proton collision data recorded at a centre-of-mass energy of 13 TeV, the efficiency of the di-tau tagger is determined and the background with quark- or gluon-initiated jets misidentified as di-tau objects is estimated. The search for a heavy, narrow, scalar resonance produced via gluon-gluon fusion and decaying into two Higgs bosons is carried out in the mass range 1-3 TeV using the same dataset. No deviations from the Standard Model predictions are observed, and 95% confidence-level exclusion limits are set on this model.&lt;fig id=&quot;Figa&quot; position=&quot;anchor&quot;&gt;&lt;graphic position=&quot;anchor&quot; specific-use=&quot;HTML&quot; mime-subtype=&quot;JPEG&quot; xmlns:xlink=&quot;http://www.w3.org/1999/xlink&quot; xlink:href=&quot;MediaObjects/13130_2020_14279_Figa_HTML.jpg&quot; id=&quot;MO1&quot;&gt;&lt;/graphic

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF HIGH ENERGY PHYSICS

ISSN

1029-8479

e-ISSN

—

Svazek periodika

2020

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

47

Strana od-do

"163-1"-"163-47"

Kód UT WoS článku

000600146700001

EID výsledku v databázi Scopus

2-s2.0-85097404578