Scattering of a neutral fermion by a force center

1978 ◽  
Vol 21 (9) ◽  
pp. 1225-1226
Author(s):  
V. G. Bagrov ◽  
Yu. I. Klimenko ◽  
I. M. Ternov ◽  
V. R. Khalilov
Keyword(s):  
Neutral Fermion ◽  
Force Center

scholarly journals Effect of Distal Tibial Varus and Valgus Deformity on Tibiotalar Joint Contact

2020 ◽  
Vol 5 (4) ◽  
pp. 2473011420S0025
Author(s):  
Zhao Hong-Mou
Keyword(s):  
Contact Pressure ◽  
Ankle Joint ◽  
Contact Area ◽  
Peak Pressure ◽  
Tibiotalar Joint ◽  
Force Center ◽  
Fibular Osteotomy ◽  
Group I ◽  
Joint Contact ◽  
Group A

Category: Ankle; Basic Sciences/Biologics Introduction/Purpose: To study the effect of different degrees of distal tibial varus and valgus deformities on the tibiotalar joint contact, and to understand the role of fibular osteotomy. Methods: Eight cadaveric lower legs were used for biomechanical study. Nine conditions were included: normal ankle joint (group A), 10° varus (group B), 5° varus (group C), 5° valgus (group D), 10° valgus (group E) with fibular preserved, and 10° varus (group F), 5° varus (group G), 5° valgus (group H), and 10° valgus (group I) after fibular osteotomy. The joint contact area, contact pressure, and peak pressure were tested; and the translation of contact force center was observed. Results: The joint contact area, contact pressure, and peak pressure had no significant difference between group A and groups B to E (P>0.05). After fibular osteotomy, the contact area decreased significantly in groups F and I when compared with group A (P<0.05); the contact pressure increased significantly in groups F, H, and I when compared with group A (P<0.05); the peak pressure increased significantly in groups F and I when compared with group A (P<0.05). There were two main anterior-lateral and anterior-medial contact centers in normal tibiotalar joint, respectively; and the force center was in anterior-lateral part, just near the center of tibiotalar joint. While the fibula was preserved, the force center transferred laterally with increased varus angles; and the force center transferred medially with increased valgus angles. However, the force center transferred oppositely to the medial part with increased varus angles, and laterally with increased valgus angles after fibular osteotomy. Conclusion: Fibular osteotomy facilitates the tibiotalar contact pressure translation, and is helpful for ankle joint realignment in suitable cases.

Matched-conic approximation to the two fixed force-center problem

1963 ◽  
Vol 68 ◽  
pp. 84 ◽  
Author(s):  
P. A. Lagerstrom ◽  
J. Kevorkian
Keyword(s):  
Center Problem ◽  
Force Center

scholarly journals Neutral Fermion Excitations in the Moore-Read State at Filling Factorν=5/2

2011 ◽  
Vol 107 (3) ◽  
Author(s):  
Gunnar Möller ◽  
Arkadiusz Wójs ◽  
Nigel R. Cooper
Keyword(s):  
Neutral Fermion

Experimental consequences of a heavy neutral fermion

1985 ◽  
Vol 32 (5) ◽  
pp. 1186-1197 ◽  
Author(s):  
Paul M. Fishbane ◽  
Karel Gaemers ◽  
Sydney Meshkov ◽  
Richard E. Norton
Keyword(s):  
Neutral Fermion

Constraints to the radiative lifetime of a light neutral fermion in the galactic halo from IUE

1985 ◽  
Vol 8 (4) ◽  
pp. 398-409
Author(s):  
G. Auriemma ◽  
F. Bochicchio ◽  
A. Frenkel ◽  
F. Massa
Keyword(s):  
Galactic Halo ◽  
Radiative Lifetime ◽  
Neutral Fermion

TWO-BODY RADIATIVE GLUINO DECAYS

1988 ◽  
Vol 03 (16) ◽  
pp. 1561-1568 ◽  
Author(s):  
ERNEST MA ◽  
GWO-GUANG WONG
Keyword(s):  
Standard Model ◽  
Branching Fraction ◽  
Color Singlet ◽  
Supersymmetric Extension ◽  
Neutral Fermion ◽  
The Standard Model ◽  
Gluino Decays ◽  
Minimal Supersymmetric Extension

A gluino can decay into a color-singlet neutral fermion [Formula: see text] by radiating off a gluon. We study this process in a minimal supersymmetric extension of the standard model. A significant branching fraction is possible depending on how much [Formula: see text] overlaps with the Higgs fermion which couples to the t quark and the mass of the t quark itself.

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