Measurement of the nuclear multiplicity ratio for [inline image] hadronization at CLAS

• Published in: Physics letters. B Vol. 706; no. 1; pp. 26 - 31
• Main Authors: Daniel, A, Adhikari, K P, Adikaram, D, Baghdasaryan, H, Battaglieri, M, Batourine, V, Bedlinskiy, I, Bennett, R P, Biselli, A S, Bookwalter, C, Briscoe, W J, Carman, D S, Celentano, A, Chandavar, S, D'Angelo, A, Dashyan, N, De Vita, R, Deur, A, Dey, B, Djalali, C, Dodge, GE, Doughty, D, Egiyan, H, El Fassi, L, Elouadrhiri, L, Eugenio, P, Fedotov, G, Gabrielyan, MY, Gevorgyan, N, Giovanetti, K L, Girod, F X, Goetz, J T, Gohn, W, Golovatch, E, Griffioen, KA, Hanretty, C, Heddle, D, Hyde, CE, Isupov, EL, Jawalkar, S S, Joo, K, Kalantarians, N, Keller, D, Khandaker, M, Kim, A, Kim, W, Klein, A, Kubarovsky, V, Kuleshov, S V, Kuznetsov, V, Lu, HY, MacGregor, IJD, Markov, N, Mayer, M, McAndrew, J, Meyer, CA, Mineeva, T, Mokeev, V, Moutarde, H, Munevar, E, Nadel-Turonski, P, Ni, A, Niccolai, S, Niculescu, I, Osipenko, M, Paolone, M, Park, K, Park, S, Pasyuk, E, Pisano, S, Pogorelko, O, Pozdniakov, S, Procureur, S, Protopopescu, D, Rimal, D, Ripani, M, Rossi, P, Saini, MS, Schott, D, Schumacher, R A, Seraydaryan, H, Sharabian, Y G, Smith, G D, Sober, DI, Sokhan, D, Strauch, S, Taiuti, M, Tang, W, Taylor, CE, Tkachenko, S, Vernarsky, B, Vineyard, M F, Voutier, E, Watts, D P, Weinstein, L B, Wood, M H, Zana, L, Zachariou, N, Zhao, B, Zhao, Z W
• Format: Journal Article
• Language: English
• Published: 30.11.2011
• Subjects: Deuterium; Elementary particles; Energy (nuclear); Inelastic scattering; Lead (metal); Photons; Transverse momentum
• ISSN: 0370-2693
• DOI: 10.1016/j.physletb.2011.10.071

The influence of cold nuclear matter on lepto-production of hadrons in semi-inclusive deep inelastic scattering is measured using the CLAS detector in Hall B at Jefferson Lab and a 5.014 GeV electron beam. We report the [inline image] multiplicity ratios for targets of C, Fe, and Pb relative to deuterium as a function of the fractional virtual photon energy z transferred to the [inline image] and the transverse momentum squared [inline image] of the [inline image]. We find that the multiplicity ratios for [inline image] are reduced in the nuclear medium at high z and low [inline image], with a trend for the [inline image] transverse momentum to be broadened in the nucleus for large [inline image].