New physics for muon anomalous magnetic moment and its electroweak precision analysis

About 3 sigma deviation from the standard model prediction of muon anomalous magnetic moment (muon g-2) has been reported. We consider new physics beyond the standard model which has new Yukawa interactions with muon. We compute new contributions to muon g-2 and corrections to electroweak observables, and show the consistent region of parameter space. We find that in a simple model where the chirality flip of muon occurs only in the external muon line in one-loop muon g-2 diagrams, it is necessary to introduce the relatively large new Yukawa coupling and the electroweak scale new particles. On the other hand, in a model where the chirality flip can occur in the internal fermion line of one loop muon g-2 diagrams, we can obtain favorable g-2 contributions without large Yukawa coupling, and they are consistent with the precision electroweak observables. Finally, we discuss effects of new particles for muon g-2 on the Higgs boson decay h to 2 photons and direct productions of these particles at the LHC experiment.Comment: 31 pages, 20 figure

Residual stress field of HIPed silicon nitride rolling elements

The residual stress field of HIPed Si3N4 rolling elements were studied. Two kinds of HIPed Si3N4 ball blanks self-finished at different nominal lapping loads ranging from 1.3 to 10.87 kgf/ball and four kinds of commercially finished 1/2 in (12.7 mm) HIPed Si3N4 balls before, during and after RCF tests were investigated. The experimental results showed that in the finishing process of HIPed Si3N4 rolling elements. the surface and subsurface compressive residual stress induced is proportional to the lapping load applied. There was initially a high compressive residual stress layer on the HIPed Si3N4 ball blanks and this layer is mostly removed during the finishing process. During the rolling contact fatigue process of HIPed Si3N4 rolling elements, the residual stresses on the rolling track will change dramatically as RCF proceeds

Exact Event Rates of Lepton Flavor Violating Processes in Supersymmetric SU(5) Model

Event rates of various lepton flavor violating processes in the minimal supersymmetric SU(5) model are calculated, using exact formulas which include Yukawa vertices of lepton-slepton-Higgsino. We find subtlety in evaluating event rates due to partial cancellation between diagrams. This cancellation typically reduces the event rates significantly, and the size of the reduction strongly depends on superparticle mass spectrum.Comment: 11pages, 8 figures. Fig.5 where the mu-e conversion rates in nuclei was shown was incorrect due to an error in our numerical computation.It is replaced in this corrected version. All conclusions remain unchange

Muon g-2 and LHC phenomenology in the Lμ−LτL_\mu-L_\tau gauge symmetric model

In this paper, we consider phenomenology of a model with an $L_\mu-L_\tau$ gauge symmetry. Since the muon couples to the $L_\mu-L_\tau$ gauge boson (called $Z''$ boson), its contribution to the muon anomalous magnetic moment (muon g-2) can account for the discrepancy between the standard model prediction and the experimental measurements. On the other hand, the $Z''$ boson does not interact with the electron and quarks, and hence there are no strong constraints from collider experiments even if the $Z''$ boson mass is of the order of the electroweak scale. We show an allowed region of a parameter space in the $L_\mu-L_\tau$ symmetric model, taking into account consistency with the electroweak precision measurements as well as the muon g-2. We study the Large Hadron Collider (LHC) phenomenology, and show that the current and future data would probe the interesting parameter space for this model.Comment: 26 pages, 12 figure

Localization problem of the quasiperiodic system with the spin orbit interaction

We study one dimensional quasiperiodic system obtained from the tight-binding model on the square lattice in a uniform magnetic field with the spin orbit interaction. The phase diagram with respect to the Harper coupling and the Rashba coupling are proposed from a number of numerical studies including a multifractal analysis. There are four phases, I, II, III, and IV in this order from weak to strong Harper coupling. In the weak coupling phase I all the wave functions are extended, in the intermediate coupling phases II and III mobility edges exist, and accordingly both localized and extended wave functions exist, and in the strong Harper coupling phase IV all the wave functions are localized. Phase I and Phase IV are related by the duality, and phases II and III are related by the duality, as well. A localized wave function is related to an extended wave function by the duality, and vice versa. The boundary between phases II and III is the self-dual line on which all the wave functions are critical. In the present model the duality does not lead to pure spectra in contrast to the case of Harper equation.Comment: 10 pages, 11 figure

Testing the Littlest Higgs Model with T-parity at the Large Hadron Collider

In the framework of the littlest Higgs model with T-parity (LHT), we study the production processes of T-even (T_+) and T-odd (T_-) partners of the top quark at the Large Hadron Collider (LHC). We show that the signal events can be distinguished from the standard-model backgrounds, and that information about mass and mixing parameters of the top partners can be measured with relatively good accuracies. With the measurements of these parameters, we show that a non-trivial test of the LHT can be performed. We also discuss a possibility to reconstruct the thermal relic density of the lightest T-odd particle A_H using the LHC results, and show that the scenario where A_H becomes dark matter may be checked.Comment: 26 pages, 6 figure

PELATIHAN PEMBUATAN DIGESTER BIOGAS SEDERHANA BAGI KELOMPOK PKK NEFONAEK

ABSTRAKKelurahan Nefonaek merupakan salah satu kelurahan di Kota Kupang yang padat penduduknya,hal ini sudah tentu berpengaruh besar pada sampah yang dihasilkan. Karena banyaknya sampah yang dihasilkan, maka seringkali masyarakat membuang tidak pada tempatnya. Seperti yang terjadi di Jalan Supul 2, sampah - sampah dibuang oleh masyarakat di tanah kosong depan perumahan. Tujuan dari kegiatan ini adalah untuk memberikan pengetahuan tentang pengelolaan sampah rumah tangga dan praktek pembuatan digester biogas sederhana. Melalui kegiatan ini diharapkan ibu – iubu rumah tangga dapat mengolah sampah rumah tangga menggunakan digester biogas sederhana. Metode yang digunakan dalam pengabdian adalah metode ceramah, tanya jawab, diskusi, simulasi dan praktik. Hasil dari kegiatan pengabdian ini yaitu ibu – ibu kelompok PKK Nefonaek mendapat pengetahuan tentang cara mengelola sampah organik, serta dapat membuat digester biogas sederhana dengan menggunakan bahan yang ada disekitar perumahan. Kata kunci: sampah organik; pengelolaan sampah; digester biogas sederhana. ABSTRACTKelurahan Nefonaek is one of the urban villages in Kupang City which is densely populated, this of course has a big effect on the waste produced. Because of the large amount of waste generated, people often dispose of it inappropriately. As happened on Jalan Supul 2, the community discards garbage on the empty land in front of the housing. The purpose of this activity is to provide knowledge about household waste management and the practice of making a simple biogas digester. Through this activity, it is hoped that housewives can process household waste using a simple biogas digester. The methods used in the community service are lecture, question and answer, discussion, simulation, and practice methods.The results of this service were that the women of the Nefonaek PKK group got knowledge about how to manage organic waste, and were able to make a simple biogas digester using materials around the housing. Keywords: organic waste; waste management; a simple biogas digester

Individual Behavior Change in the Context of Organization Change: Towards Validation of the Transtheoretical Model of Change in an Organizational Environment

A review of literature indicates limited effort to understand and explain employees' acclimation to, and adoption of, new behaviors required by organization change initiatives. Psychological theories of individual behavior change have, in restricted instances, been applied into organizational environments. The transtheoretical model of change (TTM) offers a comprehensive explanation of behavior change uniting multiple theories of individual change. TTM describes change as a series of stages that individual progress through before arriving at the decision to implement a change in behavior. Movement through the stages is facilitated by processes which increase the probability of a behavior change effort's success. The present research investigated the potential applicability of TTM for explaining individual level change within a new context, specifically, an organizational environment. To examine if individual change in the context of an organization occurs in the fashion described by TTM, measures of core TTM constructs were delivered to employees in a water department of a city in the American southwest. The water department was immersed in an organization change initiative necessitating individual behavior change by its employees. Results of TTM core construct measures and their relationships with each other and the stages of change were examined. Initial findings are indicative of TTM's potential applicability as a description of behavior change within an organizational context. Implications of these findings, potential applications, imitations of the current research, and recommendations for future research are discussed

Reconstructing Mammalian Phylogenies: A Detailed Comparison of the Cytochrome b and Cytochrome Oxidase Subunit I Mitochondrial Genes

The phylogeny and taxonomy of mammalian species were originally based upon shared or derived morphological characteristics. However, genetic analyses have more recently played an increasingly important role in confirming existing or establishing often radically different mammalian groupings and phylogenies. The two most commonly used genetic loci in species identification are the cytochrome oxidase I gene (COI) and the cytochrome b gene (cyt b). For the first time this study provides a detailed comparison of the effectiveness of these two loci in reconstructing the phylogeny of mammals at different levels of the taxonomic hierarchy in order to provide a basis for standardizing methodologies in the future. Interspecific and intraspecific variation is assessed and for the first time, to our knowledge, statistical confidence is applied to sequence comparisons. Comparison of the DNA sequences of 217 mammalian species reveals that cyt b more accurately reconstructs their phylogeny and known relationships between species based on other molecular and morphological analyses at Super Order, Order, Family and generic levels. Cyt b correctly assigned 95.85% of mammal species to Super Order, 94.31% to Order and 98.16% to Family compared to 78.34%, 93.36% and 96.93% respectively for COI. Cyt b also gives better resolution when separating species based on sequence data. Using a Kimura 2-parameter p-distance (x100) threshold of 1.5–2.5, cyt b gives a better resolution for separating species with a lower false positive rate and higher positive predictive value than those of COI