Measurement of the integrated and differential t ¯ t production cross sections for high- p T top quarks in pp collisions at √s = 8 TeV

Name: Measurement of the integrated and differential t ¯ t production cross sections for high- p T top quarks in pp collisions at √s = 8 TeV
Author: Khachatryan, V., Işıldak, Bora

İsim	Measurement of the integrated and differential t ¯ t production cross sections for high- p T top quarks in pp collisions at √s = 8 TeV
Yazar	Khachatryan, V., Işıldak, Bora
Basım Tarihi:	2016
Basım Yeri	- American Physical Society
Konu	Parton distributions, Lhc
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2470-0029
Kayıt Numarası	162ce170-29d4-42d1-9a13-88f3182bbccc
Lokasyon	Natural and Mathematical Sciences
Tarih	2016
Örnek Metin	The cross section for pair production of top quarks (t (t) over bar) with high transverse momenta is measured in pp collisions, collected with the CMS detector at the LHC with root s = 8 TeV in data corresponding to an integrated luminosity of 19.7 fb(-1). The measurement is performed using lepton + jets events, where one top quark decays semileptonically, while the second top quark decays to a hadronic final state. The hadronic decay is reconstructed as a single, large-radius jet, and identified as a top quark candidate using jet substructure techniques. The integrated cross section and the differential cross sections as a function of top quark pT and rapidity are measured at particle level within a fiducial region related to the detector-level requirements and at parton level. The particle-level integrated cross section is found to be sigma t (t) over bar = 0.499 + 0.035 (stat + syst) +/- 0.095 (theo) + 0.013 (lumi) pb for top quark p(T) > 400 GeV. The parton-level measurement is sigma t (t) over bar = 1.44 +/- 0.10 (stat + syst) + 0.29 (theo) + 0.04 (lumi) pb. The integrated and differential cross section results are compared to predictions from several event generators.
DOI	10.1103/PhysRevD.94.072002
Cilt	94

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Measurement of the integrated and differential t ¯ t production cross sections for high- p T top quarks in pp collisions at √s = 8 TeV

Yazar Khachatryan, V., Işıldak, Bora

Basım Tarihi 2016

Basım Yeri - American Physical Society

Konu Parton distributions, Lhc

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2470-0029

Kayıt Numarası 162ce170-29d4-42d1-9a13-88f3182bbccc

Lokasyon Natural and Mathematical Sciences

Tarih 2016

Örnek Metin The cross section for pair production of top quarks (t (t) over bar) with high transverse momenta is measured in pp collisions, collected with the CMS detector at the LHC with root s = 8 TeV in data corresponding to an integrated luminosity of 19.7 fb(-1). The measurement is performed using lepton + jets events, where one top quark decays semileptonically, while the second top quark decays to a hadronic final state. The hadronic decay is reconstructed as a single, large-radius jet, and identified as a top quark candidate using jet substructure techniques. The integrated cross section and the differential cross sections as a function of top quark pT and rapidity are measured at particle level within a fiducial region related to the detector-level requirements and at parton level. The particle-level integrated cross section is found to be sigma t (t) over bar = 0.499 + 0.035 (stat + syst) +/- 0.095 (theo) + 0.013 (lumi) pb for top quark p(T) > 400 GeV. The parton-level measurement is sigma t (t) over bar = 1.44 +/- 0.10 (stat + syst) + 0.29 (theo) + 0.04 (lumi) pb. The integrated and differential cross section results are compared to predictions from several event generators.

DOI 10.1103/PhysRevD.94.072002

Cilt 94