scholarly journals Enhanced effect of quark mass variation inTh229and limits from Oklo data

2009 ◽  
Vol 79 (3) ◽  
Author(s):  
V. V. Flambaum ◽  
R. B. Wiringa
Keyword(s):  
Quark Mass ◽  
Mass Variation

scholarly journals Sensitivity of hyperfine structure to nuclear radius and quark mass variation

2009 ◽  
Vol 79 (5) ◽  
Author(s):  
T. H. Dinh ◽  
A. Dunning ◽  
V. A. Dzuba ◽  
V. V. Flambaum
Keyword(s):  
Hyperfine Structure ◽  
Quark Mass ◽  
Nuclear Radius ◽  
Mass Variation

scholarly journals Quark-mass variation effect on big bang nucleosynthesis

2012 ◽  
Vol 337 ◽  
pp. 012043
Author(s):  
J C Berengut ◽  
V V Flambaum ◽  
V F Dmitriev
Keyword(s):  
Quark Mass ◽  
Big Bang ◽  
Mass Variation ◽  
Big Bang Nucleosynthesis

scholarly journals Effect of quark mass variation on big bang nucleosynthesis

2010 ◽  
Vol 683 (2-3) ◽  
pp. 114-118 ◽  
Author(s):  
J.C. Berengut ◽  
V.V. Flambaum ◽  
V.F. Dmitriev
Keyword(s):  
Quark Mass ◽  
Big Bang ◽  
Mass Variation ◽  
Big Bang Nucleosynthesis

scholarly journals Quark mass variation constraints from Big Bang nucleosynthesis

2011 ◽  
Vol 83 (4) ◽  
Author(s):  
Paulo F. Bedaque ◽  
Thomas Luu ◽  
Lucas Platter
Keyword(s):  
Quark Mass ◽  
Big Bang ◽  
Mass Variation ◽  
Big Bang Nucleosynthesis

scholarly journals Quark Mass Variation and its effect on nuclear binding

2013 ◽  
Author(s):  
Manuel Carrillo-Serrano ◽  
Ian Cloet ◽  
Kazuo Tsushima ◽  
A. W. Thomas ◽  
Iraj Afnan
Keyword(s):  
Quark Mass ◽  
Mass Variation ◽  
Nuclear Binding

New approaches for the determination of dextran in the sugar production process

2018 ◽  
pp. 138-146 ◽  
Author(s):  
Karin Abraham ◽  
Eckhard Flöter
Keyword(s):  
Molecular Mass ◽  
Mass Distribution ◽  
Molecular Mass Distribution ◽  
Molecular Size ◽  
Mass Variation ◽  
Negative Effects ◽  
New Approaches ◽  
Precise Knowledge ◽  
Enzyme Application

The presence of polysaccharides in cane and beet raw juices causes several negative effects during the sugar manufacture. These are usually mitigated by enzymatic decomposition of dextrans. Such effects not only depend on the content, but also on the molecular mass distribution. This means that the different dextran fractions specifically affect the process. An accurate process control hence requires the most precise knowledge about the existing content and the molecular mass distribution present. A detailed understanding of the specific processing problems and also a targeted enzyme application hence requires the determination of a total dextran content and also its characterization including the differentiation between the different dextran fractions. An accurate analytical tool which equally satisfies industrial applicability is still lacking. To improve on this situation, two new approaches for the determination of dextran were developed and benchmarked against the commonly used and established Haze Method, which is rather inaccurate and also sensitive to molecular mass variation. The two new approaches are both based on polarimetry. These two methods indicate to be superior over the Haze Method with respect two molecular mass variation and hence enable the determination of a broader molecular size range including also low molecular mass dextrans.

Water, Water, Here and There

2018 ◽  
Author(s):  
Steven E. Vigdor
Keyword(s):  
Quark Mass ◽  
Mass Difference ◽  
Baryon Number ◽  
Electroweak Phase Transition ◽  
Hydrogen Burning ◽  
Quark Masses ◽  
Grand Unified Theories ◽  
Down Quark ◽  
Unified Theories ◽  
The Stability

Chapter 4 deals with the stability of the proton, hence of hydrogen, and how to reconcile that stability with the baryon number nonconservation (or baryon conservation) needed to establish a matter–antimatter imbalance in the infant universe. Sakharov’s three conditions for establishing a matter–antimatter imbalance are presented. Grand unified theories and experimental searches for proton decay are described. The concept of spontaneous symmetry breaking is introduced in describing the electroweak phase transition in the infant universe. That transition is treated as the potential site for introducing the imbalance between quarks and antiquarks, via either baryogenesis or leptogenesis models. The up–down quark mass difference is presented as essential for providing the stability of hydrogen and of the deuteron, which serves as a crucial stepping stone in stellar hydrogen-burning reactions that generate the energy and elements needed for life. Constraints on quark masses from lattice QCD calculations and violations of chiral symmetry are discussed.

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