期刊
PHYSICS LETTERS B
卷 812, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2020.135991
关键词
-
资金
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWFW, Austria
- FWF, Austria
- ANAS, Azerbaijan
- SSTC, Belarus
- CNPq, Brazil
- FAPESP, Brazil
- NSERC, Canada
- CFI, Canada
- NSFC, China
- COLCIEN-CIAS, Colombia
- MSMT CR, Czech Republic
- MPO CR, Czech Republic
- VSC CR, Czech Republic
- DNRF, Denmark
- DNSRC, Denmark
- IN2P3-CNRS, France
- CEA-DRF/IRFU, France
- BMBF, Germany
- MPG, Germany
- GSRT, Greece
- RGC, China
- ISF, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- RCN, Norway
- MNiSW, Poland
- NCN, Poland
- FCT, Portugal
- MNE/IFA, Romania
- MESTD, Serbia
- MSSR, Slovakia
- ARRS, Slovenia
- MIZS, Slovenia
- MICINN, Spain
- SRC, Sweden
- Wallenberg Foundation, Sweden
- SNSF Geneva, Switzerland
- MOST, Taiwan
- TAEK, Turkey
- STFC, United Kingdom
- DOE, United States of America
- NSF, United States of America
- BCKDF, Canada
- Beijing Municipal Science AMP
- Technology Commission, China
- COST
- ERDF
- Horizon 2020 and Marie Sklodowska-Curie Actions, European Union
- Investissements d'Avenir Labex, Investissements d'Avenir Idex, France
- ANR, France
- DFG, Germany
- AvH Foundation, Germany
- Greek NSRF, Greece
- BSF-NSF, Israel
- GIF, Israel
- La Caixa Banking Foundation, Spain
- CERCA Programme Generalitat de Catalunya, Spain
- PROMETEO and GenT Programmes Generalitat Valenciana, Spain
- Goran Gustafssons Stiftelse, Sweden
- Royal Society, United Kingdom
- Leverhulme Trust, United Kingdom
- NDGF (Denmark, Norway, Sweden)
- KIT/GridKA (Germany)
- INFN-CNAF (Italy)
- ASGC (Taiwan)
- BNL (USA)
- NRC, Canada
- CERN
- ANID, Chile
- CAS, China
- MOST, China
- SRNSFG, Georgia
- HGF, Germany
- Hong Kong SAR, China
- NWO, Netherlands
- JINR
- MES of Russia
- NRC KI
- Russian Federation
- DST/NRF, South Africa
- SERI, Geneva, Switzerland
- Cantons of Bern and Geneva, Switzerland
- Canarie, Canada
- Compute Canada, Canada
- CRC Canada
- IVADO, Canada
- ERC
- EU-ESF, Greece
- ATLAS Tier-1 facilities at TRIUMF (Canada)
- CC-IN2P3 (France)
- NLT1 (Netherlands)
- PIC (Spain)
- RAL (UK)
- Science and Technology Facilities Council [ST/S000879/1] Funding Source: researchfish
- STFC [ST/S000798/1, ST/P002439/1, ST/T007257/1, ST/J004804/1, ST/S000879/1, ST/S000747/1, ST/N000234/1, ST/N000277/1, ST/T000414/1, ST/S00095X/1, ST/N000307/1, ST/J005533/1, ST/L006162/1] Funding Source: UKRI
In this study, the integrated fiducial cross-section and unfolded differential jet mass spectrum of high transverse momentum Z -> b (b) overbar decays in Z gamma events at a proton-proton collision energy of 13 TeV were measured using the ATLAS detector at the Large Hadron Collider. The results were compared with leading-order theoretical predictions and found to be in good agreement with Standard Model expectations within the current statistical and systematic uncertainties.
The integrated fiducial cross-section and unfolded differential jet mass spectrum of high transverse momentum Z -> b (b) over bar decays are measured in Z gamma events in proton-proton collisions at root s = 13 TeV. The data analysed were collected between 2015 and 2016 with the ATLAS detector at the Large Hadron Collider and correspond to an integrated luminosity of 36.1 fb(-1). Photons are required to have a transverse momentum p(T) > 175 GeV. The Z -> b (b) over bar decay is reconstructed using a jet with p(T) > 200 GeV, found with the anti-k(t) R = 1.0 jet algorithm, and groomed to remove soft and wide-angle radiation and to mitigate contributions from the underlying event and additional proton-proton collisions. Two different but related measurements are performed using two jet grooming definitions for reconstructing the Z -> b (b) over bar decay: trimming and soft drop. These algorithms differ in their experimental and phenomenological implications regarding jet mass reconstruction and theoretical precision. To identify Zbosons, b-tagged R = 0.2 track-jets matched to the groomed large-R calorimeter jet are used as a proxy for the b-quarks. The signal yield is determined from fits of the data-driven background templates to the different jet mass distributions for the two grooming methods. Integrated fiducial cross-sections and unfolded jet mass spectra for each grooming method are compared with leading-order theoretical predictions. The results are found to be in good agreement with Standard Model expectations within the current statistical and systematic uncertainties. (C) 2020 The Author. Published by Elsevier B.V
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据