Artículos de revistas
Measurement of the top quark mass in the dileptonic t(t)over-bar decay channel using the mass observables M-bl, M-T2, and M-blv in pp collisions at root=8 TeV
Fecha
2017-08-22Registro en:
Physical Review D. College Pk: Amer Physical Soc, v. 96, n. 3, 31 p., 2017.
2470-0010
10.1103/PhysRevD.96.032002
WOS:000408116900001
WOS000408116900001.pdf
Autor
Yerevan Phys Inst
Inst Hochenergiephys
Inst Nucl Problems
Natl Ctr Particle & High Energy Phys
Univ Antwerp
Vrije Univ Brussel
Univ Libre Bruxelles
Univ Ghent
Univ Catholic Louvain
Univ Mons
Ctr Brasileiro Pesquisas Fis
Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Estadual Paulista (Unesp)
Universidade Federal do ABC (UFABC)
Inst Nucl Energy Res
Univ Sofia
Beihang Univ
Inst High Energy Phys
Peking Univ
Univ Los Andes
Univ Split
Inst Rudjer Boskovic
Univ Cyprus
Charles Univ Prague
Univ San Francisco Quito
Arab Republ Egypt
NICPB
Univ Helsinki
Helsinki Inst Phys
Lappeenranta Univ Technol
Univ Paris Saclay
Univ Strasbourg
Inst Natl Phys Nucl & Phys Particules
Univ Claude Bernard Lyon 1
Georgian Tech Univ
Tbilisi State Univ
Rhein Westfal TH Aachen
Deutsches Elekt Synchrotron
Univ Hamburg
Inst Expt Kernphys
Inst Nucl & Particle Phys
Univ Athens
Natl Tech Univ Athens
Univ Ioannina
Eotvos Lorand Univ
Wigner Res Ctr Phys
Inst Nucl Res ATOMKI
Univ Debrecen
Indian Inst Sci
Natl Inst Sci Educ & Res
Panjab Univ
Univ Delhi
Saha Inst Nucl Phys
Indian Inst Technol Madras
Bhabha Atom Res Ctr
Tata Inst Fundamental Res A
Tata Inst Fundamental Res B
IISER
Inst Res Fundamental Sci IPM
Univ Coll Dublin
INFN
Univ Bari
Politecn Bari
Univ Bologna
Univ Catania
Univ Firenze
Univ Genoa
Univ Milano Bicocca
Univ Naples Federico II
Univ Basilicata
Univ G Marconi
Univ Padua
Univ Trento
Univ Pavia
Univ Perugia
Univ Pisa
Scuola Normale Super Pisa
Sapienza Univ Roma
Univ Turin
Univ Piemonte Orientale
Univ Trieste
Kyungpook Natl Univ
Chonbuk Natl Univ
Chonnam Natl Univ
Hanyang Univ
Korea Univ
Seoul Natl Univ
Univ Seoul
Sungkyunkwan Univ
Vilnius Univ
Univ Malaya
IPN
Univ Iberoamer
Benemerita Univ Autonoma Puebla
Univ Autonoma San Luis Potosi
Univ Auckland
Univ Canterbury
Quaid I Azam Univ
Natl Ctr Nucl Res
Univ Warsaw
Lab Instrumentacao & Fis Expt Particulas
Joint Inst Nucl Res
Petersburg Nucl Phys Inst
Inst Nucl Res
Inst Theoret & Expt Phys
Moscow Inst Phys & Technol
Natl Res Nucl Univ
PN Lebedev Phys Inst
Lomonosov Moscow State Univ
Novosibirsk State Univ
Univ Belgrade
Vinca Inst Nucl Sci
CIEMAT
Univ Autonoma Madrid
Univ Oviedo
Univ Cantabria
European Org Nucl Res
Paul Scherrer Inst
ETH
Univ Zurich
Natl Cent Univ
Natl Taiwan Univ
Chulalongkorn Univ
Cukurova Univ
Middle East Tech Univ
Bogazici Univ
Istanbul Tech Univ
Natl Acad Sci Ukraine
Kharkov Inst Phys & Technol
Univ Bristol
Rutherford Appleton Lab
Imperial Coll
Brunel Univ
Baylor Univ
Catholic Univ Amer
Univ Alabama
Boston Univ
Brown Univ
Univ Calif Davis
Univ Calif Los Angeles
Univ Calif Riverside
Univ Calif San Diego
Univ Calif Santa Barbara
CALTECH
Carnegie Mellon Univ
Univ Colorado
Cornell Univ
Fairfield Univ
Fermilab Natl Accelerator Lab
Univ Florida
Florida Int Univ
Florida State Univ
Florida Inst Technol
Univ Illinois
Univ Iowa
Johns Hopkins Univ
Univ Kansas
Kansas State Univ
Lawrence Livermore Natl Lab
Univ Maryland
MIT
Univ Minnesota
Univ Mississippi
Univ Nebraska
SUNY Buffalo
Northeastern Univ
Northwestern Univ
Univ Notre Dame
Ohio State Univ
Princeton Univ
Univ Puerto Rico
Purdue Univ
Purdue Univ Northwest
Rice Univ
Univ Rochester
Rutgers State Univ
Univ Tennessee
Texas A&M Univ
Texas Tech Univ
Vanderbilt Univ
Univ Virginia
Wayne State Univ
Vienna Univ Technol
Universidade Estadual de Campinas (UNICAMP)
Univ Fed Pelotas
Univ Antioquia
Suez Univ
British Univ Egypt
Ain Shams Univ
Helwan Univ
Univ Haute Alsace
Brandenburg Tech Univ Cottbus
IIT
Univ Visva Bharati
Inst Phys
Univ Ruhuna
Isfahan Univ Technol
Yazd Univ
Islamic Azad Univ
Univ Siena
MOSTI
Consejo Nacl Ciencia & Technol
Warsaw Univ Technol
Riga Tech Univ
Albert Einstein Ctr Fundamental Phys
Gaziosmanpasa Univ
Adiyaman Univ
Istanbul Aydin Univ
Mersin Univ
Cag Univ
Piri Reis Univ
Ozyegin Univ
Izmir Inst Technol
Marmara Univ
Kafkas Univ
Istanbul Bilgi Univ
Yildiz Tech Univ
Hacettepe Univ
Univ Southampton
Inst Astrofis Canarias
Utah Valley Univ
Beykent Univ
Erzincan Univ
Mimar Sinan Univ
Institución
Resumen
A measurement of the top quark mass (M-t) in the dileptonic t (t) over bar decay channel is performed using data from proton-proton collisions at a center-of-mass energy of 8 TeV. The data was recorded by the CMS experiment at the LHC and corresponds to an integrated luminosity of 19.7 +/- 0.5 fb(-1). Events are selected with two oppositely charged leptons (l = e, mu) and two jets identified as originating from b quarks. The analysis is based on three kinematic observables whose distributions are sensitive to the value of Mt. An invariant mass observable, M-bl, and a stransverse mass observable, M-T2, are employed in a simultaneous fit to determine the value of M-t and an overall jet energy scale factor (JSF). A complementary approach is used to construct an invariant mass observable, M-blv, that is combined with M-T2 to measure M-t. The shapes of the observables, along with their evolutions in M-t and JSF, are modeled by a nonparametric Gaussian process regression technique. The sensitivity of the observables to the value of M-t is investigated using a Fisher information density method. The top quark mass is measured to be 172.22 +/- 0.18(stat)(-0.93)(+0.89) (syst) GeV.