A New Narrow Resonance in the Ds pi0 System
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Meadows, B.↗
Engineering topics
Meadows, B.
Publications and source records attributed to Meadows, B..
The Impact of Super B on Flavor Physics
This report provides a succinct summary of the physics programme of Super B , and describes that potential in the context of experiments making measurements in flavour physics over the next 10 to 20 years.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
Super B Progress Report for Physics
Super B is a high luminosity e + e - collider that will be able to indirectly probe new physics at energy scales far beyond the reach of any man made accelerator planned or in existence. Just as detailed understanding of the Standard Model of particle physics was developed from stringent constraints imposed by flavour changing processes between quarks, the detailed structure of any new physics is severely constrained by flavour processes. In order to elucidate this structure it is necessary to perform a number of complementary studies of a set of golden channels. With these measurements in hand, the pattern of deviations from the Standard Model behavior can be used as a test of the structure of new physics. If new physics is found at the LHC, then the many golden measurements from Super B will help decode the subtle nature of the new physics. However if no new particles are found at the LHC, Super B will be able to search for new physics at energy scales up to 10-100 TeV. In either scenario, flavour physics measurements that can be made at Super B play a pivotal role in understanding the nature of physics beyond the Standard Model. Examples for using the interplay between measurements to discriminate New Physics models are discussed in this document.s detail the Physics case of the Super B Project.
43 PARTICLE ACCELERATORS↗
A physical control interface with proprioceptive feedback and multiple degrees of freedom
The use of the drug thalidomide by pregnant mothers in Britain resulted in a variety of deformities including the birth of children having no arms. Such children were provided with powered artificial arms with up to five degrees of freedom simultaneously controlled in real time by shoulder movement. The physiological sense of proprioception was extended from the user into the device, reducing the need for visual feedback and conscious control. With the banning of thalidomide, this technique fell into disuse but it is now being re-examined as a control mechanism for other artificial limbs and it may have other medical applications to allow patients to control formerly paralyzed limbs moved by electrical stimulation. It may also have commercial applications in robotic manipulation or physical interaction with virtual environments. To allow it to be investigated further, the original pneumatic control system has recently been converted to an electrical analogue to allow interfacing to electronic and computer-assisted systems. A harness incorporates force-sensitive resistors and linear potentiomenters for sensing position and force at the interface with the skin, and miniature electric motors and lead screws for feeding back to the user the position of the robotic arm and the forces applied to it. In the present system, control is applied to four degrees of freedom using elevation/depression and protraction/reaction of each shoulder so that each collar bone emulates a joystick. However, both electrical and mechanical components have been built in modular form to allow rapid replication and testing of a variety of force and position control strategies.
Creasey, G. H.↗