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Total cross sections and elastic scattering at the SSC

Description: The need is discussed of a special purpose detector for the measurement of elastic scattering at the SSC. The detector would cover as small a solid angle as is practical. Two techniques are described briefly to measure total cross sections at hadron storage rings. The direct method is to measure the interaction rate in an IR of known luminosity - a method that gets more difficult increasing energy. A second method is to use the optical theorem. 6 refs., 1 fig. (LEW)
Date: December 5, 1985
Creator: Foley, K.J.
Partner: UNT Libraries Government Documents Department

AGS fixed target program with nuclear beams

Description: The recent approval of the beam transfer line from the Tandem Van de Graaf to the AGS signals the advent of a new era of Nuclear and Particle Physics at BNL. High Energy nuclear beams are expected to be available for experiments in 1986. I will discuss the direct link between the Tandems and the AGS. Two other proposed projects, the Relativistic Heavy Ion Collider and the Synchrotron Booster, are discussed in another presentation to this conference.
Date: January 1, 1984
Creator: Foley, K.J.
Partner: UNT Libraries Government Documents Department

Search for fractionally charged quarks at ISABELLE

Description: A relatively simple experiment is proposed which is sensitive to conventional quarks of charge 1/3 or 2/3e and mass less than 200 GeV. The experiment uses a modest amount of conventional equipment, no magnetic momentum analysis, and in a period of one week will achieve a sensitivity of 10$sup - 36$cm$sup 2$ to isotropic quark production. Despite the experimental simplicity, the signature provided by a fractionally charged quark should be unambiguous. The method and apparatus are described, background and counting rates are discussed, and finally a cost estimate is given for this experiment. (JFP)
Date: January 1, 1975
Creator: Foley, K.J. & Meadows, B.T.
Partner: UNT Libraries Government Documents Department

MPS II drift-chamber system

Description: A new system of detectors (MPS II) which has been installed and operated in the Brookhaven National Laboratory Multiparticle Spectrometer (MPS), consisting of short drift distance drift chambers is briefly described. (WHK)
Date: May 13, 1982
Creator: Etkin, A.; Eiseman, S. & Foley, K.J.
Partner: UNT Libraries Government Documents Department

Charged particle tracking in high multiplicity events at RHIC

Description: It is generally accepted that the ability to track some fraction of the charged particles produced in heavy ion collisions is very desirable. At a very minimum, one must detect the occurance of multiple interactions in a single crossing. The very tight beam structure at RHIC does not favor time separation, so the location of separate vertices seems the best solution. The limits of tracking large numbers of tracks in a solid angle approaching 4..pi.. have been explored. A model detector considered is a 2.5 m radius TPC, a true 3D tracking device. In order to estimate the particle density of a function of production angle, five Hijet Au-Au central events were used to deduce the particle density distribution as a function of polar angle. An important feature of a tracking detector is the effective ''pixel'' size - the area within which two tracks cannot be resolved. In a TPC with multistep avalanche chamber readout this is approximately 3 mm x 3 mm or approx.0.1 cm/sup 2/. Using this pixel size we have calculated the radius at which the number of particles/pixel is 0.01 and 0.1. With the exception of the region very near the beam expect these distributions aren't expected to change very much with the application of a low (approx. 0.5 tesla) magnetic field. While the actual reconstruction efficiency will depend on the fine details of the apparatus and reconstruction program, the 1% fill fraction is safe for efficiencies in the 80 to 90% region. Tracking is found to be feasible at pseudorapidities up to 3.
Date: January 1, 1985
Creator: Foley, K.J. & Love, W.A.
Partner: UNT Libraries Government Documents Department

''Conventional'' Cerenkov counters at ISABELLE

Description: Cherenkov counters to be used with ISABELLE are described. The three counters used in the Hadron Spectrometer can be used to identify particles in the range 10 to 40 GeV/c with pions separated from heavier particles down to approximately 3 GeV/c. A longer spectrometer for 400 x 400 GeV operation should also be used. The spectrometers may be used with CO/sub 2/ and H/sub 2/. The range of particle identification of 8 to 60 GeV/c with pions separated from heavier particles down to approximately 5 GeV/c is possible. (FS)
Date: January 1, 1977
Creator: Foley, K J
Partner: UNT Libraries Government Documents Department

MPS II drift-chamber system

Description: A description is given of a drift-chamber system that has very good resolution and beam rate capabilities in a compact and reasonably priced package.
Date: January 1, 1983
Creator: Eiseman, S.; Etkin, A. & Foley, K.J.
Partner: UNT Libraries Government Documents Department

Operation of the Brookhaven MPS II Facility

Description: The BNL Multiparticle Spectrometer has recently been equipped with a set of narrow cell drift chambers employing a novel, compact, inexpensive, readout scheme. This has given an order of magnitude improvement in beam rate as well as better spatial resolution. Two experiments have been completed in the first year of operation, a good test of the system. This type of a drift chamber arrangement is ideal for use at high luminosity hadron colliders.
Date: January 1, 1983
Creator: Etkin, A.; Foley, K.J. & Longacre, R.S.
Partner: UNT Libraries Government Documents Department

Glueballs in the reaction. pi. /sup -/p. -->. phi phi n

Description: The BNL/CCNY collaboration has increased the statistics on the reaction 22 GeV/c ..pi../sup -/p ..-->.. phi phi n from 1203 to approx. = 4000 events. A preliminary partial wave analysis yields three states, all with J/sup PC/ = 2+/sup +/, which we conclude are produced by glueballs. Previously we had two such states, both with J/sup PC/ = 2/sup + +/. The data analysis, and the QCD arguments for these states being produced by glueballs will be presented and discussed.
Date: January 1, 1983
Creator: Etkin, A.; Foley, K.J. & Longacre, R.S.
Partner: UNT Libraries Government Documents Department

Characteristics of the new MPS II spectrometer system

Description: The BNL MPS II is a conversion of the spark chamber detector system of MPS I to a narrow drift space novel drift chamber system. A description is given of this very compact drift chamber system in which the electronics for individual channels is mounted on the chamber. Under actual experimental operating conditions, the chamber shows high resolution of approx. = 200 microns, are dead-time free, and yielded excellent performance. The digital electronics used eliminates channel-by-channel corrections. We have used it in a very large drift chamber system for which it is well suited since it requires less than one integrated circuit per channel. A description of the system, its testing, its use and results obtained in an experiment is presented and discussed.
Date: January 1, 1982
Creator: Etkin, A.; Foley, K.J. & Longacre, R.S.
Partner: UNT Libraries Government Documents Department

Impact of the e-p option on Isabelle experimental areas

Description: There have been many suggestions for the expansion of existing or planned storage rings to include high energy e-p collisions. We will not discuss the physics potential here, but there is a general concensus that a facility with protons colliding with electrons and positrons of selectible helicity would provide great insight into weak interactions, nucleon structure, etc., in a way not duplicated at e/sup +/e/sup -/, pp, nor anti pp machines. In this report, some aspects of the addition of a 10 to 20 GeV electron ring to Isabelle are discussed.
Date: January 1, 1981
Creator: Foley, K.J.; Kantardjian, G.; Lanou, R.; Paar, H. & Stevens, A.
Partner: UNT Libraries Government Documents Department

Impact of the e-p option on ISABELLE experimental areas

Description: There have been many suggestions for the expansion of existing or planned storage rings to include high energy e-p collisions. There is a general concensus that a facility with protons colliding with electrons and positrons of selectible helicity would provide great insight into weak interactions, nucleon structure, etc., in a way not duplicated at e/sup +/e/sup -/, pp nor anti pp machines. Some aspects of the addition of a 10 to 20 GeV electron ring to Isabelle are discussed.
Date: January 1, 1981
Creator: Foley, K.J.; Kantardjian, G.; Lanou, R.; Paar, H & Stevens, A.
Partner: UNT Libraries Government Documents Department

{Lambda} production in AuAu collisions at 11.6 GeV/c

Description: I present the first measurement at AGS energies of the rapidity and transverse mass distributions for A production with Au beam on Au target. The measurements cover the rapidity region of 2.0 to 3.2 and transverse momenta of 0.0 to 1.4 GeV/c. The results are compared with the predictions of two models.
Date: December 31, 1996
Creator: Foley, K.J. & Collaboration, E891
Partner: UNT Libraries Government Documents Department

The STAR detector magnet subsystem

Description: The RHIC (Relativistic Heavy Ion Collider) Accelerator currently under construction at Brookhaven National Laboratory will have large detectors at two of its six intersection regions. One of these detectors, known as STAR (Solenoidal Tracker At RHIC), weighs 1100 tons and is being built around a large solenoid magnet. The magnet is 7.32 in in diameter, 7.25 m long and utilizes three different sizes of room temperature aluminum coils. The magnet will operate with a field set from 0.25 T to 0.5 T and have a field uniformity of better than 1000 ppm over a portion of its interior region. This paper describes the magnet design, fabrication and assembly requirements and presents the current construction status.
Date: July 1, 1997
Creator: Brown, R.L.; Etkin, A. & Foley, K.J.
Partner: UNT Libraries Government Documents Department

Scoping Report: Advanced Technologies for Multi-Load Washers in Hospitality and Healthcare

Description: The purpose of this demonstration project is to quantify the energy savings and water efficiency potential of commercial laundry wastewater recycling systems and low-temperature detergent supply systems to help promote the adoption of these technologies in the commercial sector. This project will create a set of technical specifications for efficient multi-load laundry systems (both new and retrofit) tailored for specific applications and/or sectors (e.g., hospitality, health care). The specifications will be vetted with the appropriate Better Buildings Alliance (BBA) members (e.g., Commercial Real Estate Energy Alliance, Hospital Energy Alliance), finalized, published, and disseminated to enable widespread technology transfer in the industry and specifically among BBA partners.
Date: March 27, 2013
Creator: Parker, Graham B.; Boyd, Brian K.; Petersen, Joseph M.; Goetzler, W.; Foley, K. J. & Sutherland, T. A.
Partner: UNT Libraries Government Documents Department