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 <identifier>oai:arXiv.org:1607.00786</identifier>
 <datestamp>2016-07-05</datestamp>
 <setSpec>physics:hep-ex</setSpec>
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 <arXiv xmlns="http://arxiv.org/OAI/arXiv/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://arxiv.org/OAI/arXiv/ http://arxiv.org/OAI/arXiv.xsd">
 <id>1607.00786</id><created>2016-07-04</created><authors><author><keyname>Chudasama</keyname><forenames>Ruchi</forenames></author><author><keyname>Collaboration</keyname><forenames>Dipanwita Dutta for the CMS</forenames></author></authors><title>Exclusive Photoproduction of Upsilon in pPb collisions with the CMS</title><categories>hep-ex</categories><comments>To appear in the proceedings of the 7th International Conference on
  Physics and Astrophysics of Quark Gluon Plasma (ICPAQGP 2015), Kolkata,
  India. February 2-6, 2015</comments><license>http://arxiv.org/licenses/nonexclusive-distrib/1.0/</license><abstract>  Results of exclusive photoproduction of Upsilon states in Ultraperipheral
collisions (UPC) of protons and ions with the CMS experiment are presented,
which provides a clean probe of the gluon distribution at small values of
parton fractional momenta $x \approx 10^{-2} 10^{4}$ at central rapidities (|y|
$&lt; 2.5$). The three Upsilon states (1S, 2S, 3S) are measured in the dimuon
decay channel along with the photon-photon decaying to dimuon QED continuum at
$\sqrt{s_{NN}}=5.02$~TeV for integrated luminosity of $L_{int} = 35$ nb$^{-1}$.
The total Upsilon photoproduction cross sections at different photon-proton
center of mass energy $W_{\gamma p}$ and t-differential distributions are
presented and compared with other experimental results as well as theoretical
predictions.
</abstract></arXiv>
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