Jet and underlying event properties as a function of charged particlemultiplicity in proton proton collisions at root s 7 TeV

BAKIRCI, MUSTAFA NUMAN

doi:10.1140/epjc/s10052-013-2674-5

Jet and underlying event properties as a function of charged particlemultiplicity in proton proton collisions at root s 7 TeV

Yazarlar (1)

Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye

Makale Türü	Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı	European Physical Journal C (Q4)
Dergi ISSN	1434-6044 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler	SCI
Makale Dili	İngilizce	Basım Tarihi	01-2013
Cilt / Sayı / Sayfa	73 / 12 / 1–26	DOI	10.1140/epjc/s10052-013-2674-5
UAK Araştırma Alanları	Yüksek Enerji ve Parçacık Fiziği

Özet

Characteristics of multi-particle production in proton-proton collisions at √s = 7 TeV are studied as a function of the charged-particle multiplicity, N ch. The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity {pipe}η{pipe}<2.4 and transverse momentum p T>0.25 GeV/c. Jets are reconstructed from charged-particles only and required to have p T>5 GeV/c. The distributions of jet p T, average p T of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of N ch and compared to the predictions of the pythia and herwig event generators. Predictions without multi-parton interactions fail completely to describe the N ch-dependence observed in the data. For increasing N ch, pythia systematically predicts higher jet rates and harder p T spectra than seen in the data, whereas herwig shows the opposite trends. At the highest multiplicity, the data-model agreement is worse for most observables, indicating the need for further tuning and/or new model ingredients. © 2013 CERN for the benefit of the CMS collaboration.

Anahtar Kelimeler

BM Sürdürülebilir Kalkınma Amaçları

Atıf Sayıları
Scopus	33

Jet and underlying event properties as a function of charged particlemultiplicity in proton proton collisions at root s 7 TeV

Dergi Adı	EUROPEAN PHYSICAL JOURNAL C
Yayıncı	Springer Nature
Açık Erişim	Evet
ISSN	1434-6044
E-ISSN	1434-6052
CiteScore	8,1
SJR	1,451
SNIP	1,218

Jet and underlying event properties as a function of charged particlemultiplicity in proton proton collisions at root s 7 TeV

Paylaş