Comparison of the Z/γ<sup>∗</sup>+ jets to γ + jets cross sections in pp collisions at (Formula presented.) TeV
Khachatryan V., Sirunyan AM., Tumasyan A., Adam W., Asilar E., Bergauer T., Brandstetter J., Brondolin E., Dragicevic M., Erö J., Flechl M., Friedl M., Frühwirth R., Ghete VM., Hartl C., Hörmann N., Hrubec J., Jeitler M., Knünz V., König A., Krammer M., Krätschmer I., Liko D., Mikulec I., Rabady D., Rahbaran B., Rohringer H., Schieck J., Schöfbeck R., Strauss J., TrebererTreberspurg W., Waltenberger W., Wulz CE., Mossolov V., Shumeiko N., Suarez Gonzalez J., Alderweireldt S., Cornelis T., De Wolf EA., Janssen X., Knutsson A., Lauwers J., Luyckx S., Ochesanu S., Rougny R., Van De Klundert M., Van Haevermaet H., Van Mechelen P., Van Remortel N., Van Spilbeeck A., Abu Zeid S., Blekman F., D Hondt J., Daci N., De Bruyn I., Deroover K., Heracleous N., Keaveney J., Lowette S., Moreels L., Olbrechts A., Python Q., Strom D., Tavernier S., Van Doninck W., Van Mulders P., Van Onsem GP., Van Parijs I., Barria P., Caillol C., Clerbaux B., De Lentdecker G., Delannoy H., Dobur D., Fasanella G., Favart L., Gay APR., Grebenyuk A., Léonard A., Mohammadi A., Perniè L., Randleconde A., Reis T., Seva T., Thomas L., Vander Velde C., Vanlaer P., Wang J., Zenoni F., Beernaert K., Benucci L., Cimmino A., Crucy S., Fagot A.
© 2015, The Author(s). Abstract: A comparison of the differential cross sections for the processes Z/γ*+ jets and photon (γ)+jets is presented. The measurements are based on data collected with the CMS detector at s=8(Formula presented.) TeV corresponding to an integrated luminosity of 19.7 fb−1. The differential cross sections and their ratios are presented as functions of pT. The measurements are also shown as functions of the jet multiplicity. Differential cross sections are obtained as functions of the ratio of the Z/γ*pTto the sum of all jet transverse momenta and of the ratio of the Z/γ*pTto the leading jet transverse momentum. The data are corrected for detector effects and are compared to simulations based on several QCD calculations.[Figure not available: see fulltext.]