Effects of new physics in rare Z decays

2003 ◽  
Author(s):  
F. Larios
Keyword(s):  
2003 ◽  
Vol 18 (20) ◽  
pp. 1367-1375 ◽  
Author(s):  
Xiao-Yuan Li ◽  
Ernest Ma

We consider a gauge model where quark–lepton universality is an accidental symmetry which is only approximate, in analogy to the well-accepted notion that strong isospin is accidental and approximate. This is a natural framework for explaining possible small deviations of quark–lepton universality which is applicable to the recently reported apparent nonunitarity of the quark mixing matrix. As a result, small departures from quark–lepton universality are expected in Z decays as well as in the recent neutrino data of the NuTeV collaboration and in future low-energy experiments. New physics is predicted at the TeV scale.


2004 ◽  
Vol 19 (02) ◽  
pp. 159-178 ◽  
Author(s):  
M. A. PÉREZ ◽  
G. TAVARES-VELASCO ◽  
J. J. TOSCANO

Virtual effects induced by new physics in rare Z decays are reviewed. Since the expected sensitivity of the giga-Z linear collider is of the order of 10-8, we emphasize the importance of any new physics effect that gives a prediction above this limit. It is also pointed out that an improvement on the known experimental constraints on rare Z decays will provide us with a critical test of the validity of the standard model at the loop level.


Nature ◽  
2011 ◽  
Author(s):  
Eugenie Samuel Reich
Keyword(s):  

Edupedia ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 77-88
Author(s):  
Ali Fatoni

The integration of science is discussed today. The figures in this issue appear in the world. Mentioned among them Naquib al-Attas,and in Indonesia who keen to speak scientific integration is Amin Abdullah.This speech led to the birth of the 2013Curriculum in Indonesia with the demands of all subjects must contain a spiritual attitude (KI-1). This creates difficulties for teachers. Training and education program for teacher in applying The 2013 Curriculum is not technically in touch with their difficulties.Training and education program for teachermostly touchonly on aspects of teaching skills. This research is present to fill the gap that has not been filled by thattraining and education program. The results of this study is a simple description of the process of developing a physics textbook that begins from the study of old books and relevant theories for thisnew developmenttextbook to compiled new physics textbookincluding the content of Islamic values.


1993 ◽  
Vol 10 (2) ◽  
pp. 153-164
Author(s):  
Mahmoud Dhaouadi

There is no question that contemporary western civilization has beendominant in the field of science since the Renaissance. Western scientificsuperiority is not limited to specific scientific disciplines, but is rather anovetall scientific domination covering both the so-called exact and thehuman-social sciences. Western science is the primary reference for specialistsin such ateas as physics, chemistry, biology, medicine, economics,psychology, and sociology. It is in this sense that Third World underdevelopmentis not only economic, social, and industrial; it also suffersfrom scientific-cultutal underdevelopment, or what we call "The OtherUnderdevelopment" (Dhaouadi 1988).The imptessive progress of western science since Newton and Descartesdoes not meari, however, that it has everything tight or perfect. Infact, its flaws ate becoming mote visible. In the last few decades, westernscience has begun to experience a shift from what is called classical scienceto new science. Classical science was associated with the celestialmechanics of Copernicus, Kepler, Newton, the new physics of Galileo,and the philosophy of Descartes. Descartes introduced a radical divisionbetween mind and matter, while Newton and his fellows presented a newscience that looked at the world as a kind of giant clock The laws of thisworld were time-reversible, for it was held that there was no differencebetween past and future. As the laws were deterministic, both the pastand the future could be predicted once the present was known.The vision of the emerging new science tends to heal the division betweenmatter and spirit and to do away with the mechanical dimension ...


Author(s):  
Rachel Crossland

Drawing on Gillian Beer’s suggestion that literature and science ‘share the moment’s discourse’, the Introduction sets out the approach adopted across this study as a whole as one which will combine, but also distinguish between, the two standard approaches within the field of literature and science: direct influence and the zeitgeist. Rejecting the previous critical focus on 1919 in studies of Albert Einstein’s cultural impact in favour of 1905, it argues for a more precise engagement with the scientific ideas, as well as a clearer acknowledgement of similar ideas across a broader range of disciplines in the early twentieth century. It also highlights Virginia Woolf and D. H. Lawrence as particularly apt literary figures for such a study, given their complicated individual relationships with the science of their day, relationships which combine a dislike of science in general with more positive responses to the new physics.


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