scholarly journals Measurement of the formation rate of muonic hydrogen molecules

2015 ◽  
Vol 91 (5) ◽  
Author(s):  
V. A. Andreev ◽  
T. I. Banks ◽  
R. M. Carey ◽  
T. A. Case ◽  
S. M. Clayton ◽  
...  
2021 ◽  
Vol 109 (4) ◽  
pp. 319-326
Author(s):  
Makoto Inagaki ◽  
Kazuhiko Ninomiya ◽  
Akihiro Nambu ◽  
Takuto Kudo ◽  
Kentaro Terada ◽  
...  

Abstract To investigate the chemical effect on the muon capture process through a muon transfer reaction from a muonic hydrogen atom, the formation rate of muonic carbon atoms is measured for benzene and cyclohexane molecules in liquid samples. The muon transfer rate to carbon atoms of the benzene molecule is higher than that to the carbon atoms of the cyclohexane molecule. Such a deviation has never been observed among those molecules for gas samples. This may be because the transfers occur from the excited states of muonic hydrogen atoms in the liquid system, whereas in the gas system, all the transfers occur from the 1s (ground) state of muon hydrogen atoms. The muonic hydrogen atoms in the excited states have a larger radius than those in the 1s state and are therefore considered to be affected by the steric hindrance of the molecular structure. This indicates that the excited states of muonic hydrogen atoms contribute significantly to the chemical effects on the muon transfer reaction.


2020 ◽  
Vol 74 (12) ◽  
Author(s):  
Francisco Caruso ◽  
Amos Troper ◽  
Vitor Oguri ◽  
Felipe Silveira

1996 ◽  
Vol 53 (5) ◽  
pp. 3314-3323 ◽  
Author(s):  
A. Boukour ◽  
Ch. Leclercq-Willain ◽  
V. S. Melezhik

1996 ◽  
Vol 101-102 (1) ◽  
pp. 125-132
Author(s):  
A. Boukour ◽  
Ch. Leclercq-Willain ◽  
V. S. Melezhik

1995 ◽  
Vol 96 (1) ◽  
pp. 277-287
Author(s):  
A. Adamczak ◽  
V. I. Korobov ◽  
V. S. Melezhik

1986 ◽  
Vol 118 (4) ◽  
pp. 181-184 ◽  
Author(s):  
A. Adamczak ◽  
V.S. Melezhik

2006 ◽  
Vol 76 (3) ◽  
pp. 111-116 ◽  
Author(s):  
Hiroshi Matsuzaki ◽  
Misao Miwa

The purpose of this study was to clarify the effects of dietary calcium (Ca) supplementation on bone metabolism of magnesium (Mg)-deficient rats. Male Wistar rats were randomized by weight into three groups, and fed a control diet (control group), a Mg-deficient diet (Mg- group) or a Mg-deficient diet having twice the control Ca concentrations (Mg-2Ca group) for 14 days. Trabecular bone volume was significantly lower in the Mg - and Mg-2Ca groups than in the control group. Trabecular number was also significantly lower in the Mg - and Mg-2Ca groups than in the control group. Mineralizing bone surface, mineral apposition rate (MAR), and surface referent bone formation rate (BFR/BS) were significantly lower in the Mg - and Mg-2Ca groups than in the control group. Furthermore, MAR and BFR/BS were significantly lower in the Mg-2Ca group than in the Mg - group. These results suggest that dietary Ca supplementation suppresses bone formation in Mg-deficient rats.


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