122282212
B physics at the Fermilab Tevatron after the year 2000
Abstract The requirements for second-generation B experiments at hadron colliders are discussed. The prospects for mounting such an experiment at the Fermilab Tevatron Collider are reviewed. Early results from a design study which is intended to produce an optimum detector for the Tevatron are presented.
119875628
Conference summary: 6th International conference on hyperons, charm, and beauty hadrons (BEACH04)
The 6th International Conference on Hyperons, Charm, and Beauty Hadrons (BEACH04) treated us to a wonderful array of new results. Here the author attempts to summarize the talks and discuss the conference highlights.
43779709
Measurement of the D0 and D+ lifetimes.
We have used a high-resolution drift chamber in the Mark II detector at the SLAC e/sup +/e/sup -/ storage ring PEP to measure the lifetimes of the D/sup 0/ and D/sup +/ mesons produced in e/sup +/e/sup -/ annihilations at 29 GeV. Based on a sample of 74 decays for the D/sup 0/ mesons and 23 decays for the D/sup +/ mesons, the lifetimes are found to be tau/sub D//sub =/ = (4.7/sub -0.8//sup +0.9/) +- 0.5 x 10/sup -13/ sec and tau/sub D//sub =/ = (8.9/sub -2.7//sup +3.8/) +- 1.3 x 10/sup -13/ sec. This leads to a ratio of lifetimes tau/sub D//sub =//tau/sub =/ = 1.9/sub -0.7/ /sup +0.9/ +- 0.3. .AE
122648151
Data acquisition and analysis in extremely high data rate experiments
The goal of elementary particle physics is to unravel the properties of matter at the deepest level—that is, to answer questions such as. What are the basic constituents of matter and how do they interact with each other? The search for the answers to such questions has led us to probe the structure of matter at ever‐smaller length scales—from atomic to nuclear and now subnuclear scales. Investigating very small distance scales (below 10−13 cm) has required very high‐energy particles and, consequently, the development of gigantic particle accelerators for producing such particles. (See the box on page 55.) Although these high energy accelerators are marvels of technical and scientific ingenuity, the massive amount of data they produce could not be collected, analyzed and reduced to physics results without another marvel of modern technology: the digital computer!
118032706
Excited charmed mesons
The experimental status of excited charmed mesons is reviewed and is compared to theoretical expectations. Six states have been observed and their properties are consistent with those predicted for excited charmed states with orbital angular momentum equal to one.
123546567
B physics, BTeV, and all that
The status of ''flavor physics'' in our pursuit of knowledge in elementary particle physics is discussed. Then, the BTeV experiment, planned for the Fermilab Tevatron collider, is described briefly and its physics reach is discussed. Comparisons are made to the current B physics experiments at e{sup +}e{sup -} facilities and to the LHCb experiment, planned for the Large Hadron Collider at CERN.
121867688
Calibration of a digital hadron calorimeter with muons
The calibration procedure of a finely granulated digital hadron calorimeter with Resistive Plate Chambers as the active elements is described. Results obtained with a stack of nine layers exposed to muons from the Fermilab test beam are presented.
125896802
Search for high-mass resonances and other exotica at the LHC
27881414
Collider Physics at FNAL
After a three year hiatus, the Fer~ab Tevatron CoUder is back in operation defiverirrgfi coUsions at V = 1.8 TeV. The experimented situation is considerably Merent this run with an upgraded CDF detector jotied by the new DO detector. kprovements to the accelerator are expected to de~ver 100 pb1 from a run extending into 1993. Mer a description of the detectors and accelerator schedrde, recent physics restits horn the 1988-89 CDF m w~ be used to big~ght the rich physics menu at the Tevatron.
118570823
Status of Design, Development and Test of the Dipole Magnets for the High Energy Booster
Westinghouse Magnet Systems Division has a contract to design, develop, build and test the superconducting dipole magnets for the High Energy Booster. This paper covers the key requirements of the magnet and the design features to meet these requirements. Although similar to the Collider dipole magnets, there are some key differences in the functional requirements and design constraints which lead to design differences. Most significant is the requirement to prevent quench during bipolar operation at a ramp rate of 62 A/s compared to unipolar operation at 4 A/s for the Collider. Testing of 50 mm magnets made for the SSCL string test show that the design is sensitive to interstrand eddy currents and resultant heating at the higher ramp rate. The cryostat diameter is not constrained by the fixed distance between top and bottom rings as in the Collider. We are taking advantage of the additional space allowed. Emphasis in this paper is placed on the design differences and the reasons for them in both the cold mass and the cryostat. Our cold testing requirements and plans for test facilities to carry out the tests are summarized.
124045765
Standard Model Physics at TeV2000
tev_2000 describes the collider physics program at the Fermilab Teva- tron for the next decade.