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David Silvermyr

David Silvermyr

Senior lecturer

David Silvermyr

Production of phi mesons at midrapidity in root S-NN=200 GeVAu+Au collisions at relativistic energies

Author

  • SS Adler
  • S Afanasiev
  • C Aidala
  • NN Ajitanand
  • Y Akiba
  • J Alexander
  • R Amirikas
  • L Aphecetche
  • SH Aronson
  • R Averbeck
  • TC Awes
  • R Azmoun
  • V Babintsev
  • A Baldisseri
  • KN Barish
  • PD Barnes
  • B Bassalleck
  • S Bathe
  • S Batsouli
  • V Baublis
  • A Bazilevsky
  • S Belikov
  • Y Berdnikov
  • S Bhagavatula
  • JG Boissevain
  • H Borel
  • S Borenstein
  • ML Brooks
  • DS Brown
  • N Bruner
  • D Bucher
  • H Buesching
  • V Bumazhnov
  • G Bunce
  • JM Burward-Hoy
  • S Butsyk
  • X Camard
  • JS Chai
  • P Chand
  • WC Chang
  • S Chernichenko
  • CY Chi
  • J Chiba
  • M Chiu
  • IJ Choi
  • J Choi
  • RK Choudhury
  • T Chujo
  • V Cianciolo
  • Y Cobigo
  • BA Cole
  • P Constantin
  • DG d'Enterria
  • G David
  • H Delagrange
  • A Denisov
  • A Deshpande
  • EJ Desmond
  • A Devismes
  • O Dietzsch
  • O Drapier
  • A Drees
  • Rickard du Rietz
  • A Durum
  • D Dutta
  • YV Efremenko
  • K El Chenawi
  • A Enokizono
  • H En'yo
  • S Esumi
  • L Ewell
  • DE Fields
  • F Fleuret
  • SL Fokin
  • BD Fox
  • Z Fraenkel
  • JE Frantz
  • A Franz
  • AD Frawley
  • SY Fung
  • Sten Garpman
  • TK Ghosh
  • A Glenn
  • G Gogiberidze
  • M Gonin
  • J Gosset
  • Y Goto
  • RG de Cassagnac
  • N Grau
  • SV Greene
  • MG Perdekamp
  • W Guryn
  • Hans-Åke Gustafsson
  • T Hachiya
  • JS Haggerty
  • H Hamagaki
  • AG Hansen
  • EP Hartouni
  • M Harvey
  • R Hayano
  • N Hayashi
  • X He
  • M Heffner
  • TK Hemmick
  • JM Heuser
  • M Hibino
  • JC Hill
  • W Holzmann
  • K Homma
  • B Hong
  • A Hoover
  • T Ichihara
  • VV Ikonnikov
  • K Imai
  • D Isenhower
  • M Ishihara
  • M Issah
  • A Isupov
  • BV Jacak
  • WY Jang
  • Y Jeong
  • J Jia
  • O Jinnouchi
  • BM Johnson
  • SC Johnson
  • KS Joo
  • D Jouan
  • S Kametani
  • N Kamihara
  • JH Kang
  • SS Kapoor
  • K Katou
  • S Kelly
  • B Khachaturov
  • A Khanzadeev
  • J Kikuchi
  • DH Kim
  • DJ Kim
  • DW Kim
  • E Kim
  • GB Kim
  • HJ Kim
  • E Kistenev
  • A Kiyomichi
  • K Kiyoyama
  • C Klein-Boesing
  • H Kobayashi
  • L Kochenda
  • V Kochetkov
  • D Koehler
  • T Kohama
  • M Kopytine
  • D Kotchetkov
  • A Kozlov
  • PJ Kroon
  • CH Kuberg
  • K Kurita
  • Y Kuroki
  • MJ Kweon
  • Y Kwon
  • GS Kyle
  • R Lacey
  • V Ladygin
  • JG Lajoie
  • A Lebedev
  • S Leckey
  • DM Lee
  • S Lee
  • MJ Leitch
  • XH Li
  • H Lim
  • A Litvinenko
  • MX Liu
  • Y Liu
  • CF Maguire
  • YI Makdisi
  • A Malakhov
  • VI Manko
  • Y Mao
  • G Martinez
  • MD Marx
  • H Masui
  • F Matathias
  • T Matsumoto
  • PL McGaughey
  • E Melnikov
  • F Messer
  • Y Miake
  • J Milan
  • TE Miller
  • A Milov
  • S Mioduszewski
  • RE Mischke
  • GC Mishra
  • JT Mitchell
  • AK Mohanty
  • DP Morrison
  • JM Moss
  • F Muhlbacher
  • D Mukhopadhyay
  • M Muniruzzaman
  • J Murata
  • S Nagamiya
  • JL Nagle
  • T Nakamura
  • BK Nandi
  • M Nara
  • J Newby
  • Pål Nilsson
  • AS Nyanin
  • Joakim Nystrand
  • E O'Brien
  • CA Ogilvie
  • H Ohnishi
  • ID Ojha
  • K Okada
  • M Ono
  • V Onuchin
  • Anders Oskarsson
  • Ingvar Otterlund
  • K Oyama
  • K Ozawa
  • D Pal
  • APT Palounek
  • VS Pantuev
  • V Papavassiliou
  • J Park
  • A Parmar
  • SF Pate
  • T Peitzmann
  • JC Peng
  • V Peresedov
  • C Pinkenburg
  • RP Pisani
  • F Plasil
  • ML Purschke
  • AK Purwar
  • J Rak
  • I Ravinovich
  • KF Read
  • M Reuter
  • K Reygers
  • V Riabov
  • Y Riabov
  • G Roche
  • A Romana
  • M Rosati
  • P Rosnet
  • SS Ryu
  • ME Sadler
  • N Saito
  • T Sakaguchi
  • M Sakai
  • S Sakai
  • V Samsonov
  • L Sanfratello
  • R Santo
  • HD Sato
  • S Sato
  • S Sawada
  • Y Schutz
  • V Semenov
  • R Seto
  • MR Shaw
  • TK Shea
  • TA Shibata
  • K Shigaki
  • T Shiina
  • CL Silva
  • David Silvermyr
  • KS Sim
  • CP Singh
  • V Singh
  • M Sivertz
  • A Soldatov
  • RA Soltz
  • WE Sondheim
  • SP Sorensen
  • IV Sourikova
  • F Staley
  • PW Stankus
  • Evert Stenlund
  • M Stepanov
  • A Ster
  • SP Stoll
  • T Sugitate
  • JP Sullivan
  • EM Takagui
  • A Taketani
  • M Tamai
  • KH Tanaka
  • Y Tanaka
  • K Tanida
  • MJ Tannenbaum
  • P Tarjan
  • JD Tepe
  • TL Thomas
  • J Tojo
  • H Torii
  • RS Towell
  • I Tserruya
  • H Tsuruoka
  • SK Tuli
  • Henrik Tydesjö
  • N Tyurin
  • HW van Hecke
  • J Velkovska
  • M Velkovsky
  • V Veszpremi
  • L Villatte
  • AA Vinogradov
  • MA Volkov
  • E Vznuzdaev
  • XR Wang
  • Y Watanabe
  • SN White
  • FK Wohn
  • CL Woody
  • W Xie
  • Y Yang
  • A Yanovich
  • S Yokkaichi
  • GR Young
  • IE Yushmanov
  • WA Zajc
  • C Zhang
  • S Zhou
  • SJ Zhou
  • L Zolin

Summary, in English

We present the results of phi meson production in the K+K- decay channel from Au+Au collisions at root s(NN) =200 GeV as measured at midrapidity by the PHENIX detector at Brookhaven National Laboratory's Relativistic Heavy Ion Collider. Precision resonance centroid and width values are extracted as a function of collision centrality. No significant variation from the Particle Data Group accepted values is observed, contrary to some model predictions. The phi transverse mass spectra are fitted with a linear exponential function for which the derived inverse slope parameter is seen to be constant as a function of centrality. However, when these data are fitted by a hydrodynamic model the result is that the centrality-dependent freeze-out temperature and the expansion velocity values are consistent with the values previously derived from fitting identified charged hadron data. As a function of transverse momentum the collisions scaled peripheral-to-central yield ratio R-CP for the phi is comparable to that of pions rather than that of protons. This result lends support to theoretical models that distinguish between baryons and mesons instead of particle mass for explaining the anomalous (anti) proton yield.

Department/s

  • Department of Physics
  • Particle and nuclear physics

Publishing year

2005

Language

English

Publication/Series

Physical Review C (Nuclear Physics)

Volume

72

Issue

1

Document type

Journal article

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0556-2813