Measurement of the top quark mass in the dileptonic t¯t decay channel using the mass observables Mbl, MT2, and Mblν in pp collisions at √s=8TeV

Name: Measurement of the top quark mass in the dileptonic t¯t decay channel using the mass observables Mbl, MT2, and Mblν in pp collisions at √s=8TeV
Author: Sirunyan, A. M., Işıldak, Bora

İsim	Measurement of the top quark mass in the dileptonic t¯t decay channel using the mass observables Mbl, MT2, and Mblν in pp collisions at √s=8TeV
Yazar	Sirunyan, A. M., Işıldak, Bora
Basım Tarihi:	2017-08-22
Basım Yeri	- American Physical Society
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2470-0010
Kayıt Numarası	d115a7e7-42b0-4f68-a74a-2e65624d53f2
Lokasyon	Natural and Mathematical Sciences
Tarih	2017-08-22
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription
Örnek Metin	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.
DOI	10.1103/PhysRevD.96.032002
Cilt	96

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Measurement of the top quark mass in the dileptonic t¯t decay channel using the mass observables Mbl, MT2, and Mblν in pp collisions at √s=8TeV

Yazar Sirunyan, A. M., Işıldak, Bora

Basım Tarihi 2017-08-22

Basım Yeri - American Physical Society

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2470-0010

Kayıt Numarası d115a7e7-42b0-4f68-a74a-2e65624d53f2

Lokasyon Natural and Mathematical Sciences

Tarih 2017-08-22

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription

Örnek Metin 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.

DOI 10.1103/PhysRevD.96.032002

Cilt 96