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We study the production of charmed mesons (D) and baryons (Lambda_c) in antiproton-proton (app) annihilation close to their respective production thresholds. The elementary charm production process is described by either baryon/meson…

High Energy Physics - Phenomenology · Physics 2011-04-28 J. Haidenbauer , G. Krein

Cross sections for the charm-production reactions $\bar p p \to \bar \Lambda_c^- \Sigma_c^+$, $\bar \Sigma_c\Sigma_c$, $\bar \Xi_c\Xi_c$, and $\bar \Xi_c'\Xi_c'$ are presented, for energies near their respective thresholds. The results are…

Nuclear Theory · Physics 2017-01-25 J. Haidenbauer , G. Krein

We evaluate the cross sections for charmed hadron production from proton-proton reactions $pp\to\bar D^0p\Lambda_c^+$ and $pp\to\bar D^{*0}p\Lambda_c^+$ using a hadronic Lagrangian. With empirical coupling constants and cutoff parameters in…

Nuclear Theory · Physics 2015-06-26 Wei Liu , Che Ming Ko , Su Houng Lee

We consider the production of charmed baryons and mesons in the proton-antiproton binary reactions at the energies of the future $\bar{P}$ANDA experiment. To describe these processes in terms of hadronic interaction models, one needs strong…

High Energy Physics - Phenomenology · Physics 2015-06-03 A. Khodjamirian , Ch. Klein , Th. Mannel , Y. -M. Wang

We study the production of charmed mesons (D, D_s) in antiproton-proton annihilation close to the reaction thresholds. The elementary charm production process is described by baryon exchange and in the constituent quark model, respectively.…

High Energy Physics - Phenomenology · Physics 2014-06-19 J. Haidenbauer , G. Krein

We study the production of charmed baryons in the antiproton-proton and antiproton-nucleus interactions within a fully covariant model that is based on an effective Lagrangian approach. The baryon production proceeds via the $t$-channel…

High Energy Physics - Phenomenology · Physics 2018-03-09 R. Shyam , K. Tsushima

The associative charm particles production in nucleon-nucleon collisions $N+N\to \Lambda_c(\Sigma_c)+\bar{D}+N$, is described in a general way and the spin and isospin structure of the corresponding matrix elements are derived. Using an…

Nuclear Theory · Physics 2007-05-23 Michail P. Rekalo Egle Tomasi-Gustafsson

We investigate the production of charm-baryon hypernucleus $^{16}_{\Lambda_c^+}$O in the antiproton - $^{16}$O collisions within a fully covariant model that is based on an effective Lagrangian approach. The explicit ${\bar \Lambda}_c^ -…

Nuclear Theory · Physics 2017-06-16 R. Shyam , K. Tsushima

We study the productions of charmed baryons ${\bar \Lambda}_c^- \Lambda_c^+$, ${\bar \Lambda}_c^- \Sigma_c^+$, and ${\bar \Sigma}^- \Sigma_c^+$ in the antiproton-proton collisions within an effective Lagrangian model that has only the…

High Energy Physics - Phenomenology · Physics 2018-01-03 R. Shyam

The production cross section of prompt $\mathrm{\Lambda_{c}^{+}}$ charm baryons was measured with the ALICE detector at the LHC at midrapidity in proton-proton (pp) and proton-lead (p-Pb) collisions at a centre-of-mass energy per nucleon…

Nuclear Experiment · Physics 2021-12-10 ALICE Collaboration

In the present work, we study the production problem of the charmed baryon $\Lambda_c(2860)^+$ at $\overline{\mbox{P}}$ANDA. With the $J^P=\frac{3}{2}^+$ assignment to $\Lambda_c(2860)^+$, an effective Lagrangian approach is adopted to…

High Energy Physics - Phenomenology · Physics 2022-02-09 Qing-Yong Lin , Xiang Liu

Strange and charmed baryon productions from proton-antiproton collisions are studied in the effective Lagrangian and Regge approaches. We include only the $t$-channel dynamics which is dominant for the diffractive region that is relevant in…

High Energy Physics - Phenomenology · Physics 2020-12-21 Thanat Sangkhakrit , Sang-In Shim , Yupeng Yan , Atsushi Hosaka

We study the charmed baryon production reaction ${\bar p} p \to {\bar \Lambda}_c^- \Lambda_c^+$ using the $t$-channel $D^0$ and $D^{*0}$ meson exchange diagrams within an effective Lagrangian model involving the physical hadron masses and…

High Energy Physics - Phenomenology · Physics 2014-07-15 R. Shyam , H. Lenske

We investigate the charmed baryon production reaction $p\bar{p}\rightarrow\Lambda_c\bar{\Lambda}_c$ in an effective Lagrangian approach. Besides the $t$-channel $D^0$ and $D^{*0}$ mesons exchanges, the $s$-channel $Y(4630)$ meson exchange…

High Energy Physics - Phenomenology · Physics 2016-08-05 Yan-Yan Wang , Qi-Fang Lü , En Wang , De-Min li

The open heavy-flavour hadron measurements in proton--proton and proton--lead collisions give insight into the charm production and hadronization mechanisms. In this contribution, the latest measurements of the production cross section of…

Nuclear Experiment · Physics 2021-09-14 Annalena Sophie Kalteyer

The cross section for inclusive charm production by a low-energy antiproton beam is calculated using the parton model and next-to-leading order perturbative QCD. For an antiproton beam with a momentum of 15 GeV, the charm cross section at…

High Energy Physics - Phenomenology · Physics 2009-06-30 E. Braaten , P. Artoisenet

We discuss the influence of various contributions of the $\Lambda_{c}\bar{\Lambda}_{c}$ potential on the energy dependence of the cross section $e^{+}e^{-}\rightarrow\Lambda_{c}\bar{\Lambda}_{c}$ near the threshold. New BESIII experimental…

High Energy Physics - Phenomenology · Physics 2023-11-21 S. G. Salnikov , A. I. Milstein

The results of the SERP-E-184 experiment at the U-70 accelerator (IHEP, Protvino) are presented. Interactions of the 70 GeV proton beam with C, Si and Pb targets were studied to detect decays of charmed $D^0$, $\overline D^0$, $D^+$, $D^-$…

Asymmetries in the hadroproduction of charm particles directly probe power corrections to the QCD factorization theorems. In this paper, the heavy-quark recombination mechanism, a power correction that explains charm meson asymmetries, is…

High Energy Physics - Phenomenology · Physics 2014-11-17 Eric Braaten , Masaoki Kusunoki , Yu Jia , Thomas Mehen
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