125455835
Design and performance of a pressurized drift tube chamber for the GEM muon system
107450647
Hodoscope subgroup summary microchannel plate photodetectors
A brief discussion is given of the possible uses of microchannel plate photomultipliers and multichannel or multianode photodetectors at ISABELLE.
125547556
A NUMERICAL and ANALYTICAL STUDY OF ANOMALOUS PROPAGATION OF ELECTRICAL IMPULSES IN DAMAGED HEART FIBERS
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117016085
Inclusive production of lambda and neutral kaon in K−p interactions at 3.93 GeV/c and 14.3 GeV/c
SummaryLambda and neutral-kaon production is studied in K−p interactions at 3.93 and 14.3 GeV/c. Topological inclusive cross-sections are given at both energies. Invariant cross-sections for lambdas and neutral kaons are presented as a function of the Feynmanx-variable and are found to decrease in magnitude and vary their shapes with energy. The

$$AK\overline K $$

 production, which represents (9±2)% and (29±3)% of the lambda inclusive cross-section at 3.93 GeV/c and 14.3 GeV/c respectively, yields mainly backward lambdas. The shapes of the transverse-momentum invariant distributions vary withx, but are roughly independent of energy. The lambda polarization is studied as a function ofx at both incident momenta: for fast lambdas it is negative, as observed in reactions where nucleon exchange is dominant.RiassuntoSi studia la produzione di particelle lambda e di kaoni neutri nelle interazioni K−p a 3.93 e 14.3 GeV/c. Per entrambi i valori dell'energia si danno le sezioni d'urto inclusive topologiche. Si presentano le sezioni d'urto invarianti per particelle lambda e kaoni neutri in funzione della variabilex di Feynman e si trova che diminuiscono in grandezza e cambiano di forma con l'energia. La produzione di

$$AK\overline K $$

, che rappresenta il (9±2)% e il (29±3)% della sezione d'urto inclusiva delle particelle lambda rispettivamente a 3.93 GeV/c e 14.3 GeV/c, dà per lo più particelle lambda che vanno all'indietro. Gli andamenti delle distribuzioni invarianti dell'impulso trasversale variano conx, ma sono approssimativamente indipendenti dall'energia. Si studia la polarizzazione delle particelle lambda in funzione dix per entrambi i valori dell'impulso incidente: per particelle lambda veloci è negativa, come si è osservato in reazioni in cui predomina lo scambio di nucleoni.РезюмеИсследуется рождение ламбда и нейтрального каона в K−p взаимодействиях при 3.93 ГэВ/с и 14.3 ГэВ/с. При обеих энергиях приводятся топологические инклюзивные поперечные сечения. Инвариантные поперечные сечения для ламбда и нейтральных каонов представлены в виде функции фейнмановскойx переменной. Получено, что поперечные сечения уменьшаются по величине и изменяют свою форму с энергией.

$$AK\overline K $$

 рождение, которое составляет соответственно (9±2)% и (29±3)% ламбда инклюзивного поперечного сечения при 3.93 ГэВ/с и 14.3 ГэВ/с, образует в основном ламбда-частицы, летящие в обратном направлении. Формы инвариантных распределений для поперечного импульса изменяются с «x», но вгрубом приближении не зависят от энергии. Исследуется поляризация ламбда, как функцияx для обоих начальных испульсов: для быстрых ламбда-частиц поляризация отрицательная, как наблюдается в реакциях, где доминирует нуклонный обмен.
120089999
Two-body final states in K-p interactions at 14.3 GeV/c
Event selection and weighting. In Fig. 1 a), the distribution of the square of the missing mass to the K0 in all zero-prong plus one K ~ events is displayed; a clear neutron signal is visible with a half-width of approximately 0.4 (GeV)L In the study of reaction (1) we use all events with missing mass less than the A(1236) mass. The cross-section is corrected for the few neutron events above this cut by double-counting the symmetrical region below the neutron mass. We also correct for the background reaction
120061510
Measurement of wide-angle elastic scattering of pions and protons off protons
A comprehensive measurement of the differential cross section for ..pi../sup + -/p and pp elastic scattering has been made at large center-of-mass angles. ..pi../sup -/p and pp scattering were measured with incident laboratory momenta ranging from 2 to 9.5 GeV/c. ..pi../sup +/p scattering was measured with momenta from 2 to 6.3 GeV/c. Scattering angles were in the range -0.3 < or approx. = costheta/sub c.m./ < or approx. = 0.4. The results of the experiment are compared to constituent models and statistical models.
116487099
The trace of the energy momentum tensor and the lattice interaction measure at finite temperature
5840211
Fabrication and Tolerance Issues and their Influence on Multi-Bunch BBU and Emittance Dilution in the Construction of X-Band RDDS Linacs for the NLC
The main linacs of the Next Linear Collider (NLC) will contain several thousand X-band RDDS (Rounded Damped Detuned Structures). The transverse wakefield in the structures is reduced by detuning the modal frequencies such that they destructively interfere and by four damping manifolds per structure which provide weak damping. Errors in the fabrication of the individual cells and in the alignment of the cells will reduce the cancellation of the modes. Here, the authors calculate the tolerances on random errors in the synchronous frequencies of the cells and the cell-to-cell alignment.
17714212
The NLC positron source
A baseline design for the NLC positron source based on the existing SLC positron system is described. The proposed NLC source consists of a dedicated S-band electron accelerator, a conventional positron production and capture system utilizing a high-Z target and an adiabatic matching device, and an L-band positron linac. The invariant transverse acceptance of the capture system is 0.06 m/spl middot/rad, ensuring an adequate positron beam intensity for the NLC.
115989131
CONSIDERATIONS OF THE NUMBER AND OPTIMUM POSITIONS OF INJECTORS
12712957
Design and Factory Test of the E /E- Frascati Linear Accelerator for DAFNE
The electron-positron accelerator for the DAFNE project has been built and is in test at Titan Beta in Dublin, CA. This S-Band RF linac system utilizes four 45 MW sledded klystrons and 16-3 m accelerating structures to achieve the required performance. It delivers a 4 ampere electron beam to the positron converter and accelerates the resulting positrons to 550 MeV. The converter design uses a 4.3T pulsed tapered flux compressor along with a pseudo-adiabatic tapered field to a 5 KG solenoid over the first two positron accelerating sections. Quadrupole focusing is used after 100 MeV. The system performance is given in Table 1. This paper briefly describes the design and development of the various subassemblies in this system and gives the initial factory test data.