Underlying event measurements in $p$+$p$ collisions at $\sqrt{s}= 200 $ GeV at RHIC

STAR Collaboration; J Adam; L Adamczyk; J. R Adams; J. K Adkins; G Agakishiev; M. M Aggarwal; Z Ahammed; I Alekseev; D. M Anderson; A Aparin; E. C Aschenauer; M. U Ashraf; F. G Atetalla; A Attri; G. S Averichev; V Bairathi; K Barish; A Behera; R Bellwied; A Bhasin; J Bielcik; J Bielcikova; L. C Bland; I. G Bordyuzhin; J. D Brandenburg; A. V Brandin; J Butterworth; H Caines; M. Calderón de la Barca Sánchez; D Cebra; I Chakaberia; P Chaloupka; B. K Chan; F-H Chang; Z Chang; N Chankova-Bunzarova; A Chatterjee; D Chen; J. H Chen; X Chen; Z Chen; J Cheng; M Cherney; M Chevalier; S Choudhury; W Christie; H. J Crawford; M Csanád; M Daugherity; T. G Dedovich; I. M Deppner; A. A Derevschikov; L Didenko; X Dong; J. L Drachenberg; J. C Dunlop; T Edmonds; N Elsey; J Engelage; G Eppley; R Esha; S Esumi; O Evdokimov; A Ewigleben; O Eyser; R Fatemi; S Fazio; P Federic; J Fedorisin; C. J Feng; Y Feng; P Filip; E Finch; Y Fisyak; A Francisco; L Fulek; C. A Gagliardi; T Galatyuk; F Geurts; A Gibson; K Gopal; D Grosnick; W Guryn; A. I Hamad; A Hamed; J. W Harris; S He; W He; X He; S Heppelmann; N Herrmann; E Hoffman; L Holub; Y Hong; S Horvat; Y Hu; H. Z Huang; S. L Huang; T Huang; X Huang; T. J Humanic; P Huo; G Igo; D Isenhower; W. W Jacobs; C Jena; A Jentsch; Y JI; J Jia; K Jiang; S Jowzaee; X Ju; E. G Judd; S Kabana; M. L Kabir; S Kagamaster; D Kalinkin; K Kang; D Kapukchyan; K Kauder; H. W Ke; D Keane; A Kechechyan; M Kelsey; Y. V Khyzhniak; D. P Kikoła; C Kim; B Kimelman; D Kincses; T. A Kinghorn; I Kisel; A Kiselev; A Kisiel; M Kocan; L Kochenda; L. K Kosarzewski; L Kramarik; P Kravtsov; K Krueger; N. Kulathunga Mudiyanselage; L Kumar; R. Kunnawalkam Elayavalli; J. H Kwasizur; R Lacey; S Lan; J. M Landgraf; J Lauret; A Lebedev; R Lednicky; J. H Lee; Y. H Leung; C Li; W Li; X Li; Y Li; Y Liang; R Licenik; T Lin; Y Lin; M. A Lisa; F Liu; H Liu; P Liu; T Liu; X Liu; Y Liu; Z Liu; T Ljubicic; W. J Llope; R. S Longacre; N. S Lukow; S Luo; X Luo; G. L Ma; L Ma; R Ma; Y. G Ma; N Magdy; R Majka; D Mallick; S Margetis; C Markert; H. S Matis; J. A Mazer; N. G Minaev; S Mioduszewski; B Mohanty; I Mooney; Z Moravcova; D. A Morozov; M Nagy; J. D Nam; Md Nasim; K Nayak; D Neff; J. M Nelson; D. B Nemes; M Nie; G Nigmatkulov; T Niida; L. V Nogach; T Nonaka; G Odyniec; A Ogawa; S Oh; V. A Okorokov; B. S Page; R Pak; A Pandav; Y Panebratsev; B Pawlik; D Pawlowska; H Pei; C Perkins; L Pinsky; R. L Pintér; J Pluta; J Porter; M Posik; N. K Pruthi; M Przybycien; J Putschke; H Qiu; A Quintero; S. K Radhakrishnan; S Ramachandran; R. L Ray; R Reed; H. G Ritter; J. B Roberts; O. V Rogachevskiy; J. L Romero; L Ruan; J Rusnak; N. R Sahoo; H Sako; S Salur; J Sandweiss; S Sato; W. B Schmidke; N Schmitz; B. R Schweid; F Seck; J Seger; M Sergeeva; R Seto; P Seyboth; N Shah; E Shahaliev; P. V Shanmuganathan; M Shao; F Shen; W. Q Shen; S. S Shi; Q. Y Shou; E. P Sichtermann; R Sikora; M Simko; J Singh; S Singha; N Smirnov; W Solyst; P Sorensen; H. M Spinka; B Srivastava; T. D. S Stanislaus; M Stefaniak; D. J Stewart; M Strikhanov; B Stringfellow; A. A. P Suaide; M Sumbera; B Summa; X. M Sun; Y Sun; B Surrow; D. N Svirida; P Szymanski; A. H Tang; Z Tang; A Taranenko; T Tarnowsky; J. H Thomas; A. R Timmins; D Tlusty; M Tokarev; C. A Tomkiel; S Trentalange; R. E Tribble; P Tribedy; S. K Tripathy; O. D Tsai; Z Tu; T Ullrich; D. G Underwood; I Upsal; G Van Buren; J Vanek; A. N Vasiliev; I Vassiliev; F Videbæk; S Vokal; S. A Voloshin; F Wang; G Wang; J. S Wang; P Wang; Y Wang; Z Wang; J. C Webb; P. C Weidenkaff; L Wen; G. D Westfall; H Wieman; S. W Wissink; R Witt; Y Wu; Z. G Xiao; G Xie; W Xie; H Xu; N Xu; Q. H Xu; Y. F Xu; Y Xu; Z Xu; C Yang; Q Yang; S Yang; Y Yang; Z Yang; Z Ye; L Yi; K Yip; H Zbroszczyk; W Zha; D Zhang; S Zhang; X. P Zhang; Y Zhang; Z. J Zhang; Z Zhang; J Zhao; C Zhong; C Zhou; X Zhu; Z Zhu; M Zurek; M Zyzak

doi:10.48550/arxiv.1912.08187

$Underlying event measurements in $p$+$p$ collisions at $\sqrt{s}= 200 $ GeV at RHIC$

Preprint

Underlying event measurements in $p$+$p$ collisions at $\sqrt{s}= 200 $ GeV at RHIC

STAR Collaboration, J Adam, L Adamczyk, J. R Adams, J. K Adkins, G Agakishiev, M. M Aggarwal, Z Ahammed, I Alekseev, D. M Anderson, …

12/17/2019

DOI: https://doi.org/10.48550/arxiv.1912.08187

Abstract

Particle production sensitive to non-factorizable and non-perturbative processes that contribute to the underlying event associated with a high transverse momentum ($p_{T}$) jet in proton+proton collisions at $\sqrt{s}$=200 GeV is studied with the STAR detector. Each event is divided into three regions based on the azimuthal angle with respect to the highest-$p_{T}$ jet direction: in the leading jet direction ("Toward"), opposite to the leading jet ("Away"), and perpendicular to the leading jet ("Transverse"). In the Transverse region, the average charged particle density is found to be between 0.4 and 0.6 and the mean transverse momentum, $\langle p_{T}\rangle$, between 0.5-0.7 GeV/$c$ for particles with $p_{T}$$>$0.2 GeV/$c$ at mid-pseudorapidity ($|\eta|$$<$1) and jet $p_{T}$$>$15 GeV/$c$. Both average particle density and $\langle p_{T}\rangle$ depend weakly on the leading jet $p_{T}$. Closer inspection of the Transverse region hints that contributions to the underlying event from initial- and final-state radiation are significantly smaller in these collisions than at the higher energies, up to 13 TeV, recorded at the LHC. Underlying event measurements associated with a high-$p_{T}$ jet will contribute to our understanding of QCD processes at hard and soft scales at RHIC energies, as well as provide constraints to modeling of underlying event dynamics.

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Title: Underlying event measurements in $p$+$p$ collisions at $\sqrt{s}= 200 $ GeV at RHIC
Creators: STAR Collaboration
J Adam
L Adamczyk
J. R Adams
J. K Adkins
G Agakishiev
M. M Aggarwal
Z Ahammed
I Alekseev
D. M Anderson
A Aparin
E. C Aschenauer
M. U Ashraf
F. G Atetalla
A Attri
G. S Averichev
V Bairathi
K Barish
A Behera
R Bellwied
A Bhasin
J Bielcik
J Bielcikova
L. C Bland
I. G Bordyuzhin
J. D Brandenburg
A. V Brandin
J Butterworth
H Caines
M. Calderón de la Barca Sánchez
D Cebra
I Chakaberia
P Chaloupka
B. K Chan
F-H Chang
Z Chang
N Chankova-Bunzarova
A Chatterjee
D Chen
J. H Chen
X Chen
Z Chen
J Cheng
M Cherney
M Chevalier
S Choudhury
W Christie
H. J Crawford
M Csanád
M Daugherity
T. G Dedovich
I. M Deppner
A. A Derevschikov
L Didenko
X Dong
J. L Drachenberg
J. C Dunlop
T Edmonds
N Elsey
J Engelage
G Eppley
R Esha
S Esumi
O Evdokimov
A Ewigleben
O Eyser
R Fatemi
S Fazio
P Federic
J Fedorisin
C. J Feng
Y Feng
P Filip
E Finch
Y Fisyak
A Francisco
L Fulek
C. A Gagliardi
T Galatyuk
F Geurts
A Gibson
K Gopal
D Grosnick
W Guryn
A. I Hamad
A Hamed
J. W Harris
S He
W He
X He
S Heppelmann
N Herrmann
E Hoffman
L Holub
Y Hong
S Horvat
Y Hu
H. Z Huang
S. L Huang
T Huang
X Huang
T. J Humanic
P Huo
G Igo
D Isenhower
W. W Jacobs
C Jena
A Jentsch
Y JI
J Jia
K Jiang
S Jowzaee
X Ju
E. G Judd
S Kabana
M. L Kabir
S Kagamaster
D Kalinkin
K Kang
D Kapukchyan
K Kauder
H. W Ke
D Keane
A Kechechyan
M Kelsey
Y. V Khyzhniak
D. P Kikoła
C Kim
B Kimelman
D Kincses
T. A Kinghorn
I Kisel
A Kiselev
A Kisiel
M Kocan
L Kochenda
L. K Kosarzewski
L Kramarik
P Kravtsov
K Krueger
N. Kulathunga Mudiyanselage
L Kumar
R. Kunnawalkam Elayavalli
J. H Kwasizur
R Lacey
S Lan
J. M Landgraf
J Lauret
A Lebedev
R Lednicky
J. H Lee
Y. H Leung
C Li
W Li
X Li
Y Li
Y Liang
R Licenik
T Lin
Y Lin
M. A Lisa
F Liu
H Liu
P Liu
T Liu
X Liu
Y Liu
Z Liu
T Ljubicic
W. J Llope
R. S Longacre
N. S Lukow
S Luo
X Luo
G. L Ma
L Ma
R Ma
Y. G Ma
N Magdy
R Majka
D Mallick
S Margetis
C Markert
H. S Matis
J. A Mazer
N. G Minaev
S Mioduszewski
B Mohanty
I Mooney
Z Moravcova
D. A Morozov
M Nagy
J. D Nam
Md Nasim
K Nayak
D Neff
J. M Nelson
D. B Nemes
M Nie
G Nigmatkulov
T Niida
L. V Nogach
T Nonaka
G Odyniec
A Ogawa
S Oh
V. A Okorokov
B. S Page
R Pak
A Pandav
Y Panebratsev
B Pawlik
D Pawlowska
H Pei
C Perkins
L Pinsky
R. L Pintér
J Pluta
J Porter
M Posik
N. K Pruthi
M Przybycien
J Putschke
H Qiu
A Quintero
S. K Radhakrishnan
S Ramachandran
R. L Ray
R Reed
H. G Ritter
J. B Roberts
O. V Rogachevskiy
J. L Romero
L Ruan
J Rusnak
N. R Sahoo
H Sako
S Salur
J Sandweiss
S Sato
W. B Schmidke
N Schmitz
B. R Schweid
F Seck
J Seger
M Sergeeva
R Seto
P Seyboth
N Shah
E Shahaliev
P. V Shanmuganathan
M Shao
F Shen
W. Q Shen
S. S Shi
Q. Y Shou
E. P Sichtermann
R Sikora
M Simko
J Singh
S Singha
N Smirnov
W Solyst
P Sorensen
H. M Spinka
B Srivastava
T. D. S Stanislaus
M Stefaniak
D. J Stewart
M Strikhanov
B Stringfellow
A. A. P Suaide
M Sumbera
B Summa
X. M Sun
Y Sun
B Surrow
D. N Svirida
P Szymanski
A. H Tang
Z Tang
A Taranenko
T Tarnowsky
J. H Thomas
A. R Timmins
D Tlusty
M Tokarev
C. A Tomkiel
S Trentalange
R. E Tribble
P Tribedy
S. K Tripathy
O. D Tsai
Z Tu
T Ullrich
D. G Underwood
I Upsal
G Van Buren
J Vanek
A. N Vasiliev
I Vassiliev
F Videbæk
S Vokal
S. A Voloshin
F Wang
G Wang
J. S Wang
P Wang
Y Wang
Z Wang
J. C Webb
P. C Weidenkaff
L Wen
G. D Westfall
H Wieman
S. W Wissink
R Witt
Y Wu
Z. G Xiao
G Xie
W Xie
H Xu
N Xu
Q. H Xu
Y. F Xu
Y Xu
Z Xu
C Yang
Q Yang
S Yang
Y Yang
Z Yang
Z Ye
L Yi
K Yip
H Zbroszczyk
W Zha
D Zhang
S Zhang
X. P Zhang
Y Zhang
Z. J Zhang
Z Zhang
J Zhao
C Zhong
C Zhou
X Zhu
Z Zhu
M Zurek
M Zyzak
Identifiers: 991006034135702656
Academic Unit: Physics
Language: English
Resource Type: Preprint

Underlying event measurements in $p$+$p$ collisions at $\sqrt{s}= 200 $ GeV at RHIC

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