42,858 research outputs found

    Determination of Charm Quark Mass and αs(MZ)\alpha_s(M_Z) from HERA data

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    Charm production data from HERA can be used to determine the charm quark mass and jet production data from HERA can be used to detrmine αs(MZ)\alpha_s(M_Z). recent results are summarised.Comment: 11 pages, 9 figures. Invited talk at the Workshop on the Fundamental Parameters of QCD, NTU, Singapore, March 201

    Have we seen anything beyond (N)NLO DGLAP at HERA?

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    The evidence from HERA for parton saturation, and other low-xx effects beyond the conventional DGLAP formalism, is recalled and critically reviewed in the light of new data and analyses presented at the conference.Comment: 4 pages, 5 figures, Contribution to the discussion session at Intenrational Symposium on Multiparticle Dynamics, ISMD08, Hambur

    Measurements of αs\alpha_s and parton distribution functions using HERA jet data

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    Use of HERA jet production cross sections can extend our knowledge of the gluon parton distribution function and yield accurate measurements of αs(MZ)\alpha_s(M_Z) in addition to illustrating the running of αs\alpha_s with scale.Comment: Proceedings of the Ringberg Workshop on `New Trends in HERA Physics 2005

    Ordinary magic, extraordinary performance: psychological resilience and thriving in high achievers

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    Although resilience has been referred to as 'ordinary magic' (Masten, 2001, p. 227) that is more common than once thought, the majority of research in this area has sampled individuals who have been required to react to potentially traumatic events outside of their control. The findings of this work, however, are not easily applicable to those who actively seek to engage with challenging situations that present opportunities for them to raise their performance level. The purpose of this study was, therefore, to identify and explore resilient qualities that enable high achievers to thrive and perform at extraordinary levels. Thirteen high achievers (9 male and 4 female) from eleven professions were interviewed in the UK, and interpretative phenomenological analysis was used to identify resilient qualities that enabled the participants to thrive in pressured environments. Results revealed six superordinate themes that characterized resilience and thriving: positive and proactive personality, experience and learning, sense of control, flexibility and adaptability, balance and perspective, and perceived social support. The data highlights the multifaceted nature of resilience comprising a constellation of personal qualities that enable high achievers to excel in demanding contexts. The themes are discussed in relation to previous research findings and in terms of their implications for practicing psychologists. It is anticipated that these themes will provide practitioners with an insight into the distinct features of resilience and thriving in high achievers and help individuals to attain success and well-being in their careers

    Understanding Nuclei in the upper sd - shell

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    Nuclei in the upper-sdsd shell usually exhibit characteristics of spherical single particle excitations. In the recent years, employment of sophisticated techniques of gamma spectroscopy has led to observation of high spin states of several nuclei near A\simeq 40. In a few of them multiparticle, multihole rotational states coexist with states of single particle nature. We have studied a few nuclei in this mass region experimentally, using various campaigns of the Indian National Gamma Array setup. We have compared and combined our empirical observations with the large-scale shell model results to interpret the structure of these nuclei. Indication of population of states of large deformation has been found in our data. This gives us an opportunity to investigate the interplay of single particle and collective degrees of freedom in this mass region.Comment: 8 pages, 13 figures, submitted for publication in the Proceedings of "Frontiers in Gamma-Ray Spectroscopy 2012 (FIG12), held at New Delhi, March 5th - 7th, 2012, Organized by Inter University Accelerator Center, New Delhi, Indi
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