Update of inclusive cross sections of single and pairs of identified light charged hadrons

Seidl R.,Adachi I.,Aihara H.,Asner D. M.,Aulchenko V.,Badhrees I., Behera P.,Belous K.,Bennett J.,Bhuyan B., Biswal J.,Bračko M.,Browder T. E.,Campajola M.,Cao L.,Červenkov D.,Chang M. -C.,Chekelian V.,Chen A.,Chilikin K., Cho K.,Choi Y., Choudhury S.,Cinabro D.,Cunliffe S.,De Nardo G.,Di Capua F., Eidelman S.,Epifanov D.,Fast J. E.,Ferber T., Fulsom B. G.,Gaur V.,Giri A.,Hayashii H.,Hou W. -S., Huang K.,Inami K.,Ishikawa A.,Iwasaki M., Iwasaki Y.,Jacobs W. W.,Jia S.,Jin Y.,Joo K. K.,Karyan G.,Kim D. Y.,Kim S. H., Kodyš P., Korpar S.,Kroeger R.,Krokovny P.,Kuzmin A.,Kwon Y. -J.,Lee S. C.,Li Y. B.,Gioi L. Li, Libby J.,MacQueen C., Masuda M., Matsuda T.,Matvienko D.,Merola M., Miyabayashi K., Mizuk R.,Mussa R., Nakao M.,Nayak M.,Nisar N. K.,Nishida S.,Nishimura K., Ogawa S., Ono H.,Oskin P.,Pakhlov P.,Pakhlova G., Pardi S.,Park S. -H.,Patra S.,Paul S.,Pedlar T. K.,Piilonen L. E., Podobnik T.,Popov V., Prencipe E., Prim M. T.,Ritter M.,Rout N., Russo G.,Sahoo D., Sakai Y.,Sandilya S.,Santelj L., Sanuki T., Savinov V.,Schneider O.,Schnell G., Schwanda C., Seino Y.,Sevior M. E.,Shapkin M.,Shebalin V., Shiu J. -G., Shwartz B.,Solovieva E., Starič M., Stottler Z. S., Sumiyoshi T., Sutcliffe W., Takizawa M.,Tanida K., Tenchini F., Uchida M.,Uglov T., Unno Y., Usov Y.,Van Tonder R., Varner G.,Vorobyev V., Vossen A., Wang C. H., Wang M. -Z.,Wang P., Watanuki S.,Won E.,Xu X., Yang S. B., Yelton J., Zhang Z. P., Zhilich V.,Zhukova V.

PHYSICAL REVIEW D（2020）

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摘要

We report new measurements of the production cross sections of pairs of charged pions and kaons as a function of their fractional energies using various fractional-energy definitions. Two different fractional-energy definitions were used and compared to the conventional fractional-energy definition reported previously. The new variables aim at either identifying dihadron cross sections in terms of single-hadron fragmentation functions, or to provide a means of characterizing the transverse momentum created in the fragmentation process. The results were obtained applying the updated initial-state radiation correction used in other recent Belle publications on light-hadron production cross sections. In addition, production cross sections of single charged pions, kaons, and protons were also updated using this initial-state radiation correction. The cross sections are obtained from a 558 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.

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