$^{10}$Czech Technical University in Prague, FNSPE, Prague, 115 19, Czech Republic 

$^{31}$Pennsylvania State University, University Park, Pennsylvania 16802, USA 

$^{1}$Argonne National Laboratory, Argonne, Illinois 60439, USA 

$^{2}$University of Birmingham, Birmingham, United Kingdom 

$^{3}$Brookhaven National Laboratory, Upton, New York 11973, USA 

$^{4}$University of California, Berkeley, California 94720, USA 

$^{5}$University of California, Davis, California 95616, USA 

$^{6}$University of California, Los Angeles, California 90095, USA 

$^{7}$Universidade Estadual de Campinas, Sao Paulo, Brazil 

$^{8}$University of Illinois at Chicago, Chicago, Illinois 60607, USA 

$^{9}$Creighton University, Omaha, Nebraska 68178, USA 

$^{11}$Nuclear Physics Institute AS CR, 250 68 ˇ Reˇz/Prague, Czech Republic 

$^{13}$Institute of Physics, Bhubaneswar 751005, India 

$^{14}$Indian Institute of Technology, Mumbai, India 

$^{15}$Indiana University, Bloomington, Indiana 47408, USA 

$^{17}$Joint Institute for Nuclear Research, Dubna, 141 980, Russia 

$^{18}$Kent State University, Kent, Ohio 44242, USA 

$^{19}$University of Kentucky, Lexington, Kentucky, 40506-0055, USA 

$^{20}$Institute of Modern Physics, Lanzhou, China 

$^{21}$Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 

$^{22}$Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA 

$^{23}$Max-Planck-Institut f¨ ur Physik, Munich, Germany 

$^{24}$Michigan State University, East Lansing, Michigan 48824, USA 

$^{25}$Moscow Engineering Physics Institute, Moscow Russia 

$^{26}$City College of New York, New York City, New York 10031, USA 

$^{27}$NIKHEF and Utrecht University, Amsterdam, The Netherlands 

$^{28}$Ohio State University, Columbus, Ohio 43210, USA 

$^{29}$Old Dominion University, Norfolk, VA, 23529, USA 

$^{30}$Panjab University, Chandigarh 160014, India 

$^{32}$Institute of High Energy Physics, Protvino, Russia 

$^{33}$Purdue University, West Lafayette, Indiana 47907, USA 

$^{34}$Pusan National University, Pusan, Republic of Korea 

$^{35}$University of Rajasthan, Jaipur 302004, India 

$^{36}$Rice University, Houston, Texas 77251, USA 

$^{37}$Universidade de Sao Paulo, Sao Paulo, Brazil 

$^{38}$University of Science & Technology of China, Hefei 230026, China 

$^{39}$Shandong University, Jinan, Shandong 250100, China 

$^{40}$Shanghai Institute of Applied Physics, Shanghai 201800, China 

$^{42}$Texas A&M University, College Station, Texas 77843, USA 

$^{43}$University of Texas, Austin, Texas 78712, USA 

$^{45}$United States Naval Academy, Annapolis, MD 21402, USA 

$^{46}$Valparaiso University, Valparaiso, Indiana 46383, USA 

$^{47}$Variable Energy Cyclotron Centre, Kolkata 700064, India 

$^{48}$Warsaw University of Technology, Warsaw, Poland 

$^{49}$University of Washington, Seattle, Washington 98195, USA 

$^{50}$Wayne State University, Detroit, Michigan 48201, USA 

$^{51}$Institute of Particle Physics, CCNU (HZNU), Wuhan 430079, China 

$^{52}$Yale University, New Haven, Connecticut 06520, USA 

$^{53}$University of Zagreb, Zagreb, HR-10002, Croatia 

$^{12}$University of Frankfurt, Frankfurt, Germany 

$^{16}$University of Jammu, Jammu 180001, India 

$^{44}$Tsinghua University, Beijing 100084, China 

## (STAR Collaboration) 

$^{41}$SUBATECH, Nantes, France 

(Dated: October 15, 2018) 

We report on a measurement of the Υ(1S+2S+3S) → e $^{+}$e − cross section at midrapidity in p + p collisions at √$_{s}$ = 200 GeV. We find the cross section to be 114 ± 38 (stat. + fit) +23 − 24 (syst.) pb. Perturbative QCD calculations at next-to-leading order in the Color Evaporation Model are in agreement with our measurement, while calculations in the Color Singlet Model underestimate it by 2 σ . Our result is consistent with the trend seen in world data as a function of the center-of-mass energy of the collision and extends the availability of Υ data to RHIC energies. The dielectron continuum in the invariant mass range near the Υ is also studied to obtain a combined cross section of Drell-Yan plus b - ¯ b → e $^{+}$e $^{−}$. 

