YUKAWA CORRECTIONS TO THE NEWTONIAN GRAVITATIONAL POTENTIAL: FINITE SIZE EFFECTS IN A RECENT EXPERIMENT

2011 ◽  
Vol 26 (22) ◽  
pp. 3742-3751 ◽  
Author(s):  
C. R. JAMELL ◽  
R. S. DECCA

We provide a formalism to calculate the effect of the finite size of the sample on hypothetical Yukawa-like corrections to the Newtonian gravitational potential. It is explicitly shown that finite size effect contributions are negligible when the extent of the sample is larger than the range of the Yukawa term. In particular we show that these contributions are small in the configuration of a recent experiment. In the experiment a gold coated sphere was moved across the interface between two materials with different mass densities. In view of these new experimental results, we analyze the situation when the error on the hypothetical correction could result to be significant.

Author(s):  
C. R. JAMELL ◽  
R. S. DECCA

We provide a formalism to calculate the effect of the finite size of the sample on hypothetical Yukawa-like corrections to the Newtonian gravitational potential. It is explicitly shown that finite size effect contributions are negligible when the extent of the sample is larger than the range of the Yukawa term. In particular we show that these contributions are small in the configuration of a recent experiment. In the experiment a gold coated sphere was moved across the interface between two materials with different mass densities. In view of these new experimental results, we analyze the situation when the error on the hypothetical correction could result to be significant.


2016 ◽  
Vol 27 (09) ◽  
pp. 1650109 ◽  
Author(s):  
M. A. Radwan ◽  
Muneer A. Sumour ◽  
A. M. Elbitar ◽  
M. M. Shabat ◽  
F. W. S. Lima

In scale-free Barabási–Albert (BA) networks, we study the finite-size effect at different number m of neighbors. So, we investigate the effects of finite network size N for the recently developed semi-directed BA networks (SDBA1 and SDBA2) at fixed [Formula: see text]) and show and explain the gap in the distribution of the number [Formula: see text] of neighbors of the nodes i.


1995 ◽  
Vol 10 (15n16) ◽  
pp. 1087-1090
Author(s):  
M.I. GORENSTEIN ◽  
H.G. MILLER ◽  
R.A. RITCHIE

The inclusion of finite size effects in a single temperature Maxwell—Boltzmann, which inspired model calculation of pT distributions of h− and proton spectra, leads to an enhancement at low values of pT. In the case of h− spectra this increase is consistent with the recent measurements of S+S at 200 GeV/c per nucleon. The calculated increase at low values of pT in the proton spectra occurs at small values of the transverse kinetic energy which are not accessible in the recent experimental results.


2009 ◽  
Vol 105 (9) ◽  
pp. 094307 ◽  
Author(s):  
S. M. Binz ◽  
M. Hupalo ◽  
M. C. Tringides

1995 ◽  
Vol 09 (24) ◽  
pp. 3115-3180 ◽  
Author(s):  
HANS-JOACHIM ELMERS

The ferromagnetic properties of ultrathin films grown on non-magnetic substrates provide interesting new insights into the physics of magnetism. In this report we review experiments in the very low coverage regime (Θ < 2 atomic layers). The Fe monolayer on W plays an outstanding role, because it forms a ferromagnetic and thermodynamically stable monolayer. Ferromagnetic Fe monolayers on W can be prepared with a high degree of perfection. We therefore focus on ultrathin Fe films on W(110) and W(100) substrates. Experimental results for these in-plane magnetized films, prepared as close as possible to 2-dimensional structures of perfect translational symmetry, are compared with appropriate theoretical models, We also discuss experimental results for the perpendicularly magnetized Co monolayer on Cu(111). The symmetry of the magnetic anisotropy is found to play an important role for the understanding of the magnetic phase transition in 2 dimensions. A new aspect is provided by finite size effects resulting from the morphology of magnetic ultrathin films. Microscopy with atomic resolution allows a systematic approach to the understanding of these finite size effects. Starting from the well-known magnetic properties of the extended Fe monolayer on W(110), we focus on ultrathin Fe films on W(110) deviating from the nearly perfect structure.


1997 ◽  
Vol 9 (2) ◽  
pp. 409-412 ◽  
Author(s):  
Samson A. Jenekhe ◽  
Xuejun Zhang ◽  
X. Linda Chen ◽  
Vi-En Choong ◽  
Yongli Gao ◽  
...  

2009 ◽  
Vol 2009 (02) ◽  
pp. P02063 ◽  
Author(s):  
Bernard Nienhuis ◽  
Massimo Campostrini ◽  
Pasquale Calabrese

Author(s):  
Jun-Sik Sin

In this paper, we investigate the consequences of ion association, coupled with the considerations of finite size effects and orientational ordering of Bjerrum pairs as well as ions and water...


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