Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Three Nucleon Force Effects in Intermediate Energy Deuteron Analyzing
  Powers for dp Elastic Scattering   A complete high precision set of deuteron analyzing powers for elastic
deuteron-proton ($dp$) scattering at 250 MeV/nucleon (MeV/N) has been measured.
The new data are presented together with data from previous measurements at 70,
100, 135 and 200 MeV/N. They are compared with the results of three-nucleon
(3N) Faddeev calculations based on modern nucleon-nucleon (NN) potentials alone
or combined with two models of three nucleon forces (3NFs): the
Tucson-Melbourne 99 (TM99) and Urbana IX. At 250 MeV/N large discrepancies
between pure NN models and data, which are not resolved by including 3NFs, were
found at c.m.\ backward angles of $\theta_{\rm c.m.}\gtrsim 120^\circ$ for
almost all the deuteron analyzing powers. These discrepancies are quite similar
to those found for the cross section at the same energy. We found small
relativistic effects that cannot resolve the discrepancies with the data
indicating that other, short-ranged 3NFs are required to obtain a proper
description of the data.

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The categories of this paper are: q-fin
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The categories of this paper are: nlin
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The categories of this paper are: q-alg
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The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
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The categories of this paper are: hep-th
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: ao-sci
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: supr-con