The pT integrated cross sections F (xF = 0) in mb for K^+ , K^- and K^0_S for different sqrt(s) in p+p collisions. 
The values in brackets for K^0_S are derived from the cross sections and yields for the charged kaons under the assumption F(0)_{K^0_S} = 0.5( F(0)_{K^+} + F(0)_{K^-} ).

 reference  sqrt(s) [GeV]  F(0)_{K^+}  F(0)_{K^-}  F(0)_{K^0_S}
    [2]         2.9          0.042               
    [6]         4.9                                    0.120 
    [8]         6.1                                    0.185 
    [6]         6.8                                    0.206 
    [9]         6.84         0.440        0.120       (0.280)
   [10]         7.8                                    0.300 
   [11]        11.5          0.549        0.322       (0.435)
   [12]        11.5                                    0.375 
   [14]        13.9                                    0.505 
   [15]        16.7                                    0.490 
   [16]        17.2          0.672        0.477       (0.575)
   [17]        19.7                                    0.590  
   [18]        23.0          0.718        0.547       (0.633) 
   [19]        23.8                                    0.670  
   [21]        25.7                                    0.670 
   [23]        27.6                                    0.680 
   [18]        31.0          0.767        0.614       (0.691)
   [18]        45.0          0.861        0.714       (0.788)
   [18]        52.0          0.907        0.766       (0.837)
   [18]        63.0          0.959        0.811       (0.885)
   [18]       200.0          1.361        1.192       (1.277)
   [24]       200.0                                    1.680
   [24]       546.0                                    2.306


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