Semi-Leptonic B Meson Decays to Excited D Mesons in the Covariant Oscillator Quark Model

The spectra and branching ratios of the weak semi-leptonic B meson decays to the first excited D mesons are predicted, taking into account the confined effects of quarks using the covariant oscillator quark model (COQM). In the COQM the same relation between general weak transition form factors as that in HQET is derived, and the concrete form of the Isgur-Wise function is given with no free parameters. Our results are somewhat different from those of other models. The present experimental data are not sufficient for comparison.Comment: 13 pages, 2 Postscript figure, uses ptptex.st

Factors Influencing Psychological Independence in Adolescents and Their Relationship to Coaching-based Support from Significant Others

[Background] An increasing number of adolescents are experiencing social maladjustment. This development may be due to serious conflicts regarding psychological independence. This study aimed to elucidate factors that influence psychological independence in adolescents and to clarify the relationship among coaching-based support from significant others, adolescent self-esteem, and adolescent psychological independence, in order to help prevent and treat social maladjustment in adolescents. [Methods] A total of 1814 students in all years at 2 universities and 1 junior college in A Prefecture, Japan, completed an anonymous self-administered questionnaire. The questionnaire asked about the participants’ attributes, support relationships, psychological independence, and self-esteem. Coaching-based support was assessed by the Accelerate your Coaching Effectiveness scale; psychological independence by the Psychological Jiritsu Scale; and self-esteem by the Rosenberg Self-Esteem Scale. [Results] Gender, grade, major, current living situation were found to influence psychological independence of adolescents. The most significant others who had the most influence on psychological independence were mothers, fathers, and friends for male adolescents, and mothers, friends, and fathers for female adolescents, in that order. In female, coaching-based support from significant others increased their self-esteem and promoted all the sub-scales of psychological independence. In male, coaching-based support boosted their self-esteem and promoted the following sub-scales; “future orientation”, “appropriate human relations”, “value judgment and execution”, “responsibility”, and “social perspective”, except for “self-control”. [Conclusion] We believe that coaching-based support from significant others can effectively help adolescents build their self-esteem and can promote their psychological independence

The Ds(2317) and Ds(2463) Mesons as Scalar and Axial-Vector Chiralons in the Covariant Level-Classification Scheme

The new narrow mesons observed recently in the final states Ds+ pi0 and Ds*+ pi0 are pointed out to be naturally assigned as the ground-state scalar and axial-vector chiralons in the c sbar system, which would newly appear in the covariant hadron-classification scheme proposed a few years ago.Comment: 8 pages, 1 figure, uses ptptex.st

Consistent anti-de sitter-space/conformal-field-theory dual for a time-dependent finite temperature system

Shunichiro Kinoshita, Shinji Mukohyama, Shin Nakamura, and Kin-ya Oda. Consistent Anti–de Sitter-Space/Conformal-Field-Theory Dual for a Time-Dependent Finite Temperature System. Phys. Rev. Lett. 102, 031601, 2009. https://doi.org/10.1103/PhysRevLett.102.031601