Even at moderate energy machines, there is a regime where hard pion electroproduction proceeds by a perturbatively calculable process. The process, we claim, is not the leading twist fragmentation one but rather a higher twist process that produces kinematically isolated pions. Semiexclusive data may teach us more about parton distribution functions of the target and the pion distribution ampli...

The interest in refining our knowledge of the fragmentation functions for heavy quarks (HQFF) in e+e− annihilation stems mainly from the possibility of using them to improve our understanding of heavy-flavour hadroproduction and photoproduction. In fact, this is a quite clean environment where the impact of non-perturbative effects can be studied. The aim of this talk is to present new results ...

Postmodernism is an intellectual movement that embraces meaningless and fragmentation. The concept of scepticism will be its dominant feature. Scepticism means to challenge question the fixed view certain beliefs. Sondheim's Into Woods (1986) a musical play consists traditional famous fairy tales. Sondheim deconstructs challenges these tales in order appropriate for postmodern age. Definitely a...

In adaptive networks, fragmentation transitions have been observed in which the network breaks into disconnected components. We present an analytical approach for calculating the transition point in general adaptive network models. Using the example of an adaptive voter model, we demonstrate that the proposed approach yields good agreement with numerical results.

In the leading O(α 4 s) order of the perturbative QCD, the hadronic production cross-sections of Sand P-wave states of B c meson are calculated. The results for the S-wave levels are compared with the values given in other papers as well as in the model of the b quark fragmenatation into B c. In the given order, the cross-sections of the hadronic production of the P-wave states are calculated f...

Purpose – LIS has been described as a fragmented field in crisis, with an increased competition from other fields; and lacking in development of theories. This article aims at articulating a strategy in which the perceived weakness can be seen as a source of strength. Design – The text builds mostly on reflections on meta-theoretical and science-organisation literature. 10 distinct problems for...

Genocide studies is simultaneously an emerging and accepted category of scholarly inquiry. The field is robust and at a critical turning point as more disciplines engage the subject. This article identifies two areas within the field that suggest the need for further scholarly attention. First, it urges a renewed attention to the processional nature of genocide and the implications that flow fr...

Necessary and sufficient conditions are given for a substochastic semigroup on L obtained through the Kato–Voigt perturbation theorem to be either stochastic or strongly stable. We show how such semigroups are related to piecewise deterministic Markov process, provide a probabilistic interpretation of our results, and apply them to fragmentation equations.