Hadronic production of Lambda c from 600 GeV/c pi(-), Sigma(-) and p beams
- Nilov, AP
- Ramberg, E
- Rappazzo, GF
- Razmyslovich, B
- Rud, VI
- Russ, J
- Schiavon, P
- Simon, J
- Sitnikov, AI
- Skow, D
- Smith, VJ
- Srivastava, M
- Steiner, V
- Stepanov, V
- Stutte, L
- Svoiski, M
- Terentyev, NK
- Thomas, GP
- Uvarov, LN
- Vasiliev, AN
- Vavilov, DV
- Verebryusov, VS
- Victorov, VA
- Vishnyakov, VE
- Vorobyov, AA
- Vorwalter, K
- You, J
- Zhao, WH
- Zheng, SC
- Zukanovich-Funchal, R
- Ozkorucuklu, Suat
- Kurshetsov, VF
- Kushnirenko, A
- Kwan, S
- Lach, J
- Lamberto, A
- Landsberg, LG
- Larin, I
- Leikin, EM
- Li, YS
- Luksys, M
- Lungov, T
- Maleev, VP
- Mao, D
- Mao, CS
- Mao, ZL
- Mathew, P
- Mattson, M
- Matveev, V
- McCliment, E
- Moinester, MA
- Molchanov, VV
- Morelos, A
- Nelson, KD
- Nemitkin, AV
- Neoustroev, PV
- Newsom, C
- Nurushev, SB
- Ocherashvili, A
- Onel, Y
- Ozel, E
- Garcia, FG
- Garcia, FG
- Alkhazov, G
- Atamantchouk, AG
- Balatz, MY
- Bondar, NF
- Cooper, PS
- Dauwe, LJ
- Davidenko, GV
- Dersch, U
- Dolgolenko, AG
- Dzyubenko, GB
- Edelstein, R
- Emediato, L
- Endler, AMF
- Engelfried, J
- Eschrich, I
- Escobar, CO
- Evdokimov, AV
- Filimonov, IS
- Gaspero, M
- Giller, I
- Golovtsov, VL
- Gouffon, P
- Gulmez, E
- He, KL
- Iori, M
- Jun, SY
- Kaya, M
- Kilmer, J
- Kim, VT
- Kochenda, LM
- Konorov, I
- Kozhevnikov, AP
- Krivshich, AG
- Kruger, H
- Kubantsev, MA
- Kubarovsky, VP
- Kulyavtsev, AI
- Kuropatkin, NP
- Penzo, A
- Petrenko, SV
- Pogodin, P
- Procario, M
- Prutskoi, VA
DOIAbstract
We present data from Fermilab experiment E781 (SELEX) on the hadroproduction asymmetry for (Lambda) over bar((c)) over bar compared to Lambda(c)(+) as a function of x(F), and on p(t)(2) distributions for Lambda(c)(+). These data were measured in the same apparatus using incident pi(-),Sigma(-) beams at 600 GeV/c and proton beam at 540 GeV/c. The asymmetry is studied as a function of x(F). In the forward hemisphere with x(F) greater than or equal to 0.2 both baryon beams exhibit very strong preference for producing charm baryons rather than charm antibaryons, while the pion beam asymmetry is much smaller. In this energy regime the results show that beam fragments play a major role in the kinematics of Lambda(c) formation, as suggested by the...
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