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The production of the excited charmed baryon doublet $\Lambda_c^*$ via fragmentation is studied. An analysis of the subsequent hadronic decays of the doublet within the framework of heavy hadron chiral perturbation theory produces…

High Energy Physics - Phenomenology · Physics 2009-10-28 John K. Elwood

Two particle correlations between identified meson and baryon trigger particles with 2.5 < p_T < 4.0 GeV/c and lower p_T charged hadrons have been measured at midrapidity by the PHENIX experiment at RHIC in p+p, d+Au and Au+Au collisions at…

Nuclear Experiment · Physics 2008-11-26 PHENIX Collaboration , S. S. Adler

$\chi_{cJ}$ (J=0,1,2) production associated with a charm quark pair in hadron collisions is calculated in the framework of nonrelativistic QCD at the Tevatron and LHC. It is found that the color-singlet contribution is small and the…

High Energy Physics - Phenomenology · Physics 2011-07-05 Dan Li , Yan-Qing Ma , Kuang-Ta Chao

The CLEO experiment at the CESR collider has used 13.7 fb$^{-1}$ of data to search for the production of the $\Omega_c^0$ (css-ground state) in $e^{+}e^{-}$ collisions at $\sqrt{s} \simeq 10.6$ {\rm GeV}. The modes used to study the…

High Energy Physics - Experiment · Physics 2010-04-08 D. Cronin-Hennessy , CLEO Collaboration

We measure the inclusive production cross sections of hyperons and charmed baryons from $e^+e^-$ annihilation using a 800 fb$^{-1}$ data sample taken near the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy…

High Energy Physics - Experiment · Physics 2018-04-18 Belle Collaboration , M. Niiyama , M. Sumihama , T. Nakano , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , V. Aulchenko , T. Aushev , R. Ayad , V. Babu , I. Badhrees , A. M. Bakich , V. Bansal , E. Barberio , M. Berger , V. Bhardwaj , B. Bhuyan , J. Biswal , A. Bobrov , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , M. -C. Chang , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , R. Chistov , K. Cho , Y. Choi , D. Cinabro , N. Dash , S. Di Carlo , Z. Doležal , Z. Drásal , D. Dutta , S. Eidelman , H. Farhat , J. E. Fast , T. Ferber , B. G. Fulsom , V. Gaur , N. Gabyshev , A. Garmash , R. Gillard , P. Goldenzweig , J. Haba , T. Hara , K. Hayasaka , H. Hayashii , T. Iijima , K. Inami , A. Ishikawa , R. Itoh , Y. Iwasaki , W. W. Jacobs , I. Jaegle , Y. Jin , D. Joffe , K. K. Joo , T. Julius , G. Karyan , Y. Kato , P. Katrenko , D. Y. Kim , H. J. Kim , J. B. Kim , K. T. Kim , M. J. Kim , S. H. Kim , Y. J. Kim , K. Kinoshita , P. Kodyš , D. Kotchetkov , P. Križan , P. Krokovny , R. Kulasiri , A. Kuzmin , Y. -J. Kwon , J. S. Lange , I. S. Lee , C. H. Li , L. Li , Y. Li , L. Li Gioi , J. Libby , D. Liventsev , T. Luo , M. Masuda , T. Matsuda , D. Matvienko , M. Merola , K. Miyabayashi , H. Miyata , R. Mizuk , H. K. Moon , T. Mori , R. Mussa , E. Nakano , M. Nakao , T. Nanut , K. J. Nath , Z. Natkaniec , M. Nayak , N. K. Nisar , S. Nishida , S. Ogawa , H. Ono , P. Pakhlov , G. Pakhlova , B. Pal , S. Pardi , H. Park , T. K. Pedlar , L. E. Piilonen , C. Pulvermacher , M. Ritter , H. Sahoo , Y. Sakai , S. Sandilya , L. Santelj , Y. Sato , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , R. Seidl , Y. Seino , K. Senyo , M. E. Sevior , V. Shebalin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , A. Sokolov , E. Solovieva , M. Starič , T. Sumiyoshi , M. Takizawa , K. Tanida , F. Tenchini , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , C. Van Hulse , G. Varner , A. Vossen , C. H. Wang , M. -Z. Wang , P. Wang , Y. Watanabe , E. Widmann , K. M. Williams , E. Won , Y. Yamashita , H. Ye , C. Z. Yuan , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

Recent measurements of charm-baryon production in proton--proton (pp) collisions at midrapidity by the ALICE collaboration showed that baryon-to-meson yield ratios are significantly higher than those measured in $\rm e^+e^-$ collisions. The…

High Energy Physics - Experiment · Physics 2021-09-10 Jianhui Zhu

Using the entire Belle data sample of 980 ${\rm fb}^{-1}$ of $e^+e^-$ collisions, we present the results of a study of excited $\Omega_c$ charmed baryons in the decay mode $\Xi_c^+K^-$. We show confirmation of four of the five narrow states…

High Energy Physics - Experiment · Physics 2018-03-14 Belle Collaboration , J. Yelton , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , V. Aulchenko , T. Aushev , R. Ayad , T. Aziz , V. Babu , A. M. Bakich , V. Bansal , E. Barberio , P. Behera , M. Berger , V. Bhardwaj , B. Bhuyan , J. Biswal , A. Bobrov , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , P. Chang , A. Chen , B. G. Cheon , K. Chilikin , K. Cho , S. -K. Choi , Y. Choi , S. Choudhury , D. Cinabro , T. Czank , N. Dash , S. Di Carlo , Z. Doležal , D. Dutta , S. Eidelman , J. E. Fast , T. Ferber , B. G. Fulsom , R. Garg , V. Gaur , N. Gabyshev , A. Garmash , M. Gelb , A. Giri , P. Goldenzweig , B. Golob , D. Greenwald , E. Guido , J. Haba , K. Hayasaka , H. Hayashii , M. T. Hedges , W. -S. Hou , K. Inami , G. Inguglia , A. Ishikawa , R. Itoh , M. Iwasaki , Y. Iwasaki , W. W. Jacobs , H. B. Jeon , Y. Jin , T. Julius , K. H. Kang , G. Karyan , Y. Kato , T. Kawasaki , H. Kichimi , D. Y. Kim , H. J. Kim , J. B. Kim , S. H. Kim , K. Kinoshita , P. Kodyš , S. Korpar , D. Kotchetkov , P. Križan , R. Kroeger , P. Krokovny , T. Kuhr , R. Kulasiri , T. Kumita , A. Kuzmin , Y. -J. Kwon , J. S. Lange , I. S. Lee , S. C. Lee , C. H. Li , L. K. Li , Y. Li , L. Li Gioi , D. Liventsev , M. Lubej , T. Luo , M. Masuda , D. Matvienko , M. Merola , H. Miyata , R. Mizuk , G. B. Mohanty , H. K. Moon , T. Mori , R. Mussa , E. Nakano , M. Nakao , T. Nanut , K. J. Nath , M. Nayak , M. Niiyama , N. K. Nisar , S. Nishida , S. Ogawa , S. Okuno , H. Ono , P. Pakhlov , G. Pakhlova , B. Pal , H. Park , S. Paul , I. Pavelkin , T. K. Pedlar , R. Pestotnik , L. E. Piilonen , V. Popov , M. Ritter , G. Russo , Y. Sakai , S. Sandilya , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , Y. Seino , M. E. Sevior , V. Shebalin , C. P. Shen , T. -A. Shibata , N. Shimizu , J. -G. Shiu , B. Shwartz , F. Simon , J. B. Singh , E. Solovieva , M. Starič , J. F. Strube , M. Sumihama , T. Sumiyoshi , K. Suzuki , M. Takizawa , U. Tamponi , K. Tanida , F. Tenchini , M. Uchida , T. Uglov , Y. Unno , S. Uno , Y. Usov , G. Varner , K. E. Varvell , A. Vinokurova , V. Vorobyev , C. H. Wang , M. -Z. Wang , P. Wang , X. L. Wang , Y. Watanabe , S. Watanuki , E. Widmann , E. Won , H. Ye , Y. Yusa , S. Zakharov , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

The inclusive production of the charm-strange baryon $\rm \Omega_c^0$ is measured for the first time via its hadronic decay into $\rm \Omega^-\pi^+$ at midrapidity ($|y|<0.5$) in proton-proton (pp) collisions at the centre-of-mass energy…

Nuclear Experiment · Physics 2023-10-05 ALICE Collaboration

With data taken by SELEX, which accumulated data during the 1996-1997 fixed target run at Fermilab, we study the production of charmed hadrons on copper and carbon targets with Sigma-, p, pi-, and pi+ beams. Parameterizing the production…

High Energy Physics - Experiment · Physics 2009-12-04 The SELEX Collaboration , A. Blanco-Covarrubias , J. Engelfried

Within the extended vector meson dominance model, we investigate the $e^+ e^- \to \Lambda^+_c \bar{\Lambda}^-_c$ reaction and the electromagnetic form factors of the charmed baryon $\Lambda_c^+$. The model parameters are determined by…

High Energy Physics - Phenomenology · Physics 2024-02-22 Cheng Chen , Bing Yan , Ju-Jun Xie

Identifying a zero-range exchange of vector mesons as the driving force for the s-wave scattering of pseudo-scalar mesons off the baryon ground states, a rich spectrum of molecules is formed. We argue that chiral symmetry and large-$N_c$…

High Energy Physics - Phenomenology · Physics 2017-08-23 M. F. M. Lutz , J. Hofmann

We study strange and charmed baryon productions, ${\pi + p \rightarrow K(D) + Y(Y_c)}$, where ${Y(Y_c)}$ is a strange(charmed) baryon of a ground or an excited state. We propose a new production mechanism where two quarks in the baryon…

High Energy Physics - Phenomenology · Physics 2020-01-08 Sang-In Shim , Atsushi Hosaka , Hyun-Chul Kim

A study of the associated production of a Z boson and a charm quark jet (Z + c), and a comparison to production with a b quark jet (Z + b), in pp collisions at a centre-of-mass energy of 8 TeV are presented. The analysis uses a data sample…

High Energy Physics - Experiment · Physics 2018-04-20 CMS Collaboration

The production of charmed particles by Sigma- of 340 Gev/c momentum was studied in the hyperon beam experiment WA89 at the CERN-SPS, using the Omega-spectrometer. In two data-taking periods in 1993 and 1994 an integrated luminosity of 1600…

High Energy Physics - Experiment · Physics 2011-10-11 WA89 Collaboration , M. I. Adamovich

Using data recorded with the CLEO II and CLEO II.V detector configurations at the Cornell Electron Storage Rings, we report the first observation and mass measurement of the $\Sigma_c^{*+}$ charmed baryon, and an updated measurement of the…

High Energy Physics - Experiment · Physics 2010-04-08 R. Ammar , CLEO Collaboration

Recent results on open charm production at HERA are presented. Charm quarks are identified via the reconstruction of D-mesons. The charm contribution to the proton structure function is shown. Evidence for an exotic anti-charmed baryon…

High Energy Physics - Experiment · Physics 2019-08-14 K. Lipka

We report results of a study of doubly charmed baryons and charmed strange baryons. The analysis is performed using a 980 fb^-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We search for…

High Energy Physics - Experiment · Physics 2015-06-18 Y. Kato , T. Iijima , I. Adachi , H. Aihara , D. M. Asner , T. Aushev , A. M. Bakich , A. Bala , Y. Ban , V. Bhardwaj , B. Bhuyan , A. Bobrov , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , R. Chistov , K. Cho , V. Chobanova , Y. Choi , D. Cinabro , J. Dalseno , M. Danilov , Z. Doležal , Z. Drásal , A. Drutskoy , D. Dutta , K. Dutta , S. Eidelman , H. Farhat , J. E. Fast , T. Ferber , V. Gaur , N. Gabyshev , S. Ganguly , A. Garmash , R. Gillard , Y. M. Goh , B. Golob , J. Haba , K. Hayasaka , H. Hayashii , X. H. He , Y. Horii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , K. Inami , A. Ishikawa , Y. Iwasaki , T. Iwashita , I. Jaegle , T. Julius , J. H. Kang , E. Kato , T. Kawasaki , C. Kiesling , D. Y. Kim , H. J. Kim , J. B. Kim , J. H. Kim , M. J. Kim , Y. J. Kim , J. Klucar , B. R. Ko , P. Kodyš , S. Korpar , P. Krokovny , T. Kuhr , A. Kuzmin , Y. -J. Kwon , S. -H. Lee , J. Li , Y. Li , L. Li Gioi , J. Libby , Y. Liu , D. Liventsev , D. Matvienko , K. Miyabayashi , H. Miyata , R. Mizuk , A. Moll , N. Muramatsu , R. Mussa , Y. Nagasaka , E. Nakano , M. Nakao , M. Nayak , E. Nedelkovska , C. Ng , M. Niiyama , N. K. Nisar , S. Nishida , O. Nitoh , S. Ogawa , S. Okuno , P. Pakhlov , G. Pakhlova , C. W. Park , H. Park , H. K. Park , T. K. Pedlar , T. Peng , R. Pestotnik , M. Petrič , L. E. Piilonen , M. Ritter , M. Röhrken , A. Rostomyan , H. Sahoo , T. Saito , Y. Sakai , S. Sandilya , L. Santelj , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , D. Semmler , K. Senyo , O. Seon , M. Shapkin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , Y. -S. Sohn , A. Sokolov , E. Solovieva , S. Stanič , M. Starič , M. Steder , M. Sumihama , T. Sumiyoshi , U. Tamponi , K. Tanida , G. Tatishvili , Y. Teramoto , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , C. Van Hulse , P. Vanhoefer , G. Varner , A. Vinokurova , V. Vorobyev , M. N. Wagner , C. H. Wang , M. -Z. Wang , P. Wang , M. Watanabe , Y. Watanabe , K. M. Williams , E. Won , Y. Yamashita , S. Yashchenko , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

We present a study of excited charm-strange baryon states produced in $e^+e^-$ annihilations at or near a center-of-mass energy of $10.58\mathrm{Ge\kern -0.1em V}$, in a data sample with an integrated luminosity of $384 fb^{-1}$ recorded…

High Energy Physics - Experiment · Physics 2010-04-12 The BABAR Collaboration , B. Aubert

In the framework of nonrelativistic QCD, the excited doubly heavy baryons are thoroughly studied via the channel $e^{+} e^{-}\rightarrow \langle QQ^{\prime}\rangle[n] \rightarrow \Xi_{QQ^{\prime}} +\bar{Q^{\prime}} +\bar{Q}$, which takes…

High Energy Physics - Phenomenology · Physics 2023-09-08 Juan-Juan Niu , Jing-Bo Li , Huan-Yu Bi , Hong-Hao Ma

BESIII has accumulated 4.5 fb$^{-1}$ of $e^+e^-$ collision data in the 4.6 to 4.7 GeV energy range, corresponding to the world's largest sample of $\Lambda_c^+\bar{\Lambda}_c^-$ pairs. This paper summarizes recent BESIII results on…

High Energy Physics - Experiment · Physics 2026-04-17 Xudong Yu