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Title: TECHNICAL DESIGN REPORT OF THE FORWARD SILICON VERTEX (FVTX)

Abstract

The main goal of the RHIC heavy ion program is the discovery of the novel ultra-hot high-density state of matter predicted by the fundamental theory of strong interactions and created in collisions of heavy nuclei, the Quark-Gluon Plasma (QGP). From measurements of the large elliptic flow of light mesons and baryons and their large suppression at high transverse momentum pT that have been made at RHIC, there is evidence that new degrees of freedom, characteristic of a deconfined QCD medium, drive the dynamics of nucleus-nucleus collisions. It has been recognized, however, that the potential of light quarks and gluons to characterize the properties of the QGP medium is limited and the next phase of the RHIC program calls for the precise determination of its density, temperature, opacity and viscosity using qualitatively new probes, such as heavy quarks. We propose the construction of two Forward Silicon Vertex Trackers (FVTX) for the PHENIX experiment that will directly identify and distinguish charm and beauty decays within the acceptance of the muon spectrometers. The FVTX will provide this essential coverage over a range of forward and backward rapidities (1.2 < |y| < 2.4)--a rapidity range coverage which not only brings significantly larger acceptance tomore » PHENIX but which is critical for separating cold nuclear matter effects from QGP effects and is critical for measuring the proton spin contributions over a significant fraction of the kinematic range of interest. In addition, the FVTX will provide greatly reduced background and improved mass resolution for dimuon events, culminating in the first measurements of the {upsilon}{prime} and Drell-Yan at RHIC. These same heavy flavor and dimuon measurements in p+p collisions will allow us to place significant constraints on the gluon and sea quark contributions to the proton's spin and to make fundamentally new tests of the Sivers function universality.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
912839
Report Number(s):
BNL-79216-2007
R&D Project: 08842; KB0201021; TRN: US0800595
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS; BARYONS; DEGREES OF FREEDOM; DESIGN; HEAVY IONS; HEAVY NUCLEI; MASS RESOLUTION; MESONS; NUCLEAR MATTER; PARTICLE RAPIDITY; QUANTUM CHROMODYNAMICS; QUARK MATTER; SAFETY REPORTS; SILICON; STRONG INTERACTIONS; TRANSVERSE MOMENTUM

Citation Formats

EXPERIMENT, PHENIX, OBRIEN, E, PAK, R, DREES, K A, and PHENIX EXPERIMENT COLLABORATORS). TECHNICAL DESIGN REPORT OF THE FORWARD SILICON VERTEX (FVTX). United States: N. p., 2007. Web. doi:10.2172/912839.
EXPERIMENT, PHENIX, OBRIEN, E, PAK, R, DREES, K A, & PHENIX EXPERIMENT COLLABORATORS). TECHNICAL DESIGN REPORT OF THE FORWARD SILICON VERTEX (FVTX). United States. https://doi.org/10.2172/912839
EXPERIMENT, PHENIX, OBRIEN, E, PAK, R, DREES, K A, and PHENIX EXPERIMENT COLLABORATORS). 2007. "TECHNICAL DESIGN REPORT OF THE FORWARD SILICON VERTEX (FVTX)". United States. https://doi.org/10.2172/912839. https://www.osti.gov/servlets/purl/912839.
@article{osti_912839,
title = {TECHNICAL DESIGN REPORT OF THE FORWARD SILICON VERTEX (FVTX)},
author = {EXPERIMENT, PHENIX and OBRIEN, E and PAK, R and DREES, K A and PHENIX EXPERIMENT COLLABORATORS)},
abstractNote = {The main goal of the RHIC heavy ion program is the discovery of the novel ultra-hot high-density state of matter predicted by the fundamental theory of strong interactions and created in collisions of heavy nuclei, the Quark-Gluon Plasma (QGP). From measurements of the large elliptic flow of light mesons and baryons and their large suppression at high transverse momentum pT that have been made at RHIC, there is evidence that new degrees of freedom, characteristic of a deconfined QCD medium, drive the dynamics of nucleus-nucleus collisions. It has been recognized, however, that the potential of light quarks and gluons to characterize the properties of the QGP medium is limited and the next phase of the RHIC program calls for the precise determination of its density, temperature, opacity and viscosity using qualitatively new probes, such as heavy quarks. We propose the construction of two Forward Silicon Vertex Trackers (FVTX) for the PHENIX experiment that will directly identify and distinguish charm and beauty decays within the acceptance of the muon spectrometers. The FVTX will provide this essential coverage over a range of forward and backward rapidities (1.2 < |y| < 2.4)--a rapidity range coverage which not only brings significantly larger acceptance to PHENIX but which is critical for separating cold nuclear matter effects from QGP effects and is critical for measuring the proton spin contributions over a significant fraction of the kinematic range of interest. In addition, the FVTX will provide greatly reduced background and improved mass resolution for dimuon events, culminating in the first measurements of the {upsilon}{prime} and Drell-Yan at RHIC. These same heavy flavor and dimuon measurements in p+p collisions will allow us to place significant constraints on the gluon and sea quark contributions to the proton's spin and to make fundamentally new tests of the Sivers function universality.},
doi = {10.2172/912839},
url = {https://www.osti.gov/biblio/912839}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {8}
}