11 research outputs found
Pulmonary balloon valvuloplasty results in improvement of right coronary blood flow velocity pattern in patients with pulmonary valve stenosis
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Daily fluctuations of titratable acidity, content of organic acids (malate and citrate) and soluble sugars of varieties and wild relatives of Ananas comosus L. growing under natural tropical conditions
No full textDESENVOLVIMENTO INICIAL DO ABACAXIZEIRO, CV. SMOOTH CAYENNE, SOB DIFERENTES CONDIÇÕES DE SALINIDADE DA ÁGUA
No full textPrevention of natural flowering in pineapple (Ananas comosus) by shading and urea application
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Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy for peritoneal malignant disease
No full textMeasurement of elastic J/#psi# photoproduction at HERA
No full textThe reaction #gamma# p #-># J/#psi#p has been studied in ep interactions using the ZEUS detector at HERA. The cross section for elastic J/#psi# photoproduction has been measured as a function of the photon-proton centre of mass energy W in the range 40 < W < 140 GeV at a median photon virtuality Q"2 of 5 x 10"-"5 GeV"2. The photoproduction cross section, #sigma#_#gamma#_p_#->#_J_/_#psi#_p, is observed to rise steeply with W. A fit to the data presented in this paper to determine the parameter #delta# in the form #sigma#_#gamma#_p_#->#_J_/_#psi#_p #propor to# W"#delta# yields the value #delta# = 0.92 #+-# 0.14 #+-# 0.10. The differential cross section d#sigma#/d vertical stroke t vertical stroke is presented over the range vertical stroke t vertical stroke < 1.0 GeV"2 where t is the square of the four-momentum exchanged at the proton vertex. d#sigma#/d vertical stroke t vertical stroke falls exponentially with a slope parameter of 4.6 #+-# 0.4"+"0"."4_-_0_._6 GeV"-"2. The measured decay angular distributions are consistent with s-channel helicity conservation. (orig.)Available from FIZ Karlsruhe / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman
