647 research outputs found
New Approach to Parton Shower MC's for Precision QCD Theory: HERWIRI1.0(31)
By implementing the new IR-improved
Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-Callan-Symanzik (DGLAP-CS) kernels
recently developed by one of us in the HERWIG6.5 environment we generate a new
MC, HERWIRI1.0(31), for hadron-hadron scattering at high energies. We use MC
data to illustrate the comparison between the parton shower generated by the
standard DGLAP-CS kernels and that generated by the new IR-improved DGLAP-CS
kernels. The interface to MC@NLO, MC@NLO/HERWIRI, is illustrated. Comparisons
with FNAL data and some discussion of possible implications for LHC
phenomenology are also presented.Comment: 24 pages, 10 figures; published versio
Interplay of IR-Improved DGLAP-CS Theory and NLO Parton Shower MC Precision
We present the interplay between the new IR-improved DGLAP-CS theory and the
precision of NLO parton shower/ME matched MC`s as it is realized by the new MC
Herwiri1.031 in interface to MC@NLO. We discuss phenomenological implications
using comparisons with recent LHC data on single heavy gauge boson production.Comment: 8 pages, 4 figures; presented by BFLW at ICHEP 201
Statistical Origin of Gravity
Starting from the definition of entropy used in statistical mechanics we show
that it is proportional to the gravity action. For a stationary black hole this
entropy is expressed as , where is the Hawking temperature and
is shown to be the Komar energy. This relation is also compatible with the
generalised Smarr formula for mass.Comment: LaTex, 7 pages, no figure, minor clarifications, references added, to
appear in Phys. Rev.
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