{
  "abstract": "We decode the excited open charm mesons $D$ ($c\\bar{q}$, $q=u,d$) and charm strange $D_s$ ($c\\bar{s}$) families within a nonrelativistic quark-antiquark potential model based on the Cornell (Coulomb plus linear) potential supplemented by a Gaussian smeared spin-spin interaction. With only seven parameters determined by fitting the ground state masses, the numerically solved Schrödinger equation reproduces the masses of essentially every confirmed $D$ and $D_s$ state to better than $1\\%$. The same wave functions are then employed to get a complete decay analysis including pseudoscalar and vector decay constants ($f_D = 231.8$~MeV, $f_{D_s} = 252.2$~MeV, the latter within $0.4\\%$ of the world average), leptonic branching fractions reproducing the measured $μν$ and $τν$ modes, electromagnetic $E1$/$M1$ widths, and all kinematically open strong channels in heavy quark effective theory (HQET). Going beyond width ratios, we extract the full set of HQET couplings $g_H$, $g_S$, $g_T$, $g_X$, $g_Y$, $g_Z$, and $g_R$ directly from the measured total widths and convert our predictions into absolute widths. The $D$ and $D_s$ sector extractions of each coupling agree ($g_T = 0.42$ vs. $0.39$, $g_X = 0.22$ vs. $0.21$, $g_Y = 0.39$ vs. $0.40$), a nontrivial test of heavy quark flavor symmetry, while the pure $c\\bar{s}$ picture demands a $1^3P_0$ width nearly two orders of magnitude above the observed $D_{s0}^*(2317)$ bound demanding it to be of exotic nature. Linear and parallel Regge trajectories in the $(J,M^2)$ and $(n_r,M^2)$ planes, with slopes $α\\simeq 0.55-0.65$~GeV$^{-2}$ and $β\\simeq 0.36 - 0.39$~GeV$^{-2}$, identify the assignments of $D_J(3000)^0$, $D_J^*(3000)^0$, and $D_2^*(3000)^0$ as the $3^1S_0$, $3^3S_1$, and $3^3P_2$ states. Our predictions provide concrete, testable targets for LHCb, BESIII, and Belle~II.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.12568",
  "author_total": 6,
  "authors": [
    {
      "name": "Janki. J. Patel"
    },
    {
      "name": "Dhaval Achary"
    },
    {
      "name": "Dhruvesh Maiya"
    },
    {
      "name": "Keval Gandhi"
    },
    {
      "name": "Nakul R. Soni"
    },
    {
      "name": "Jignesh N. Pandya"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/74sg8takkzh0z.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.12568",
  "fulltext_url": null,
  "id": "74sg8takkzh0z",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.12568",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7212527935",
  "pdf_url": "https://arxiv.org/pdf/2609.12568",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-11",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/74sg8takkzh0z.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:07Z",
      "native_id": "2609.12568",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.12568"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Comprehensive study of spectroscopic properties of $D_{(s)}$ mesons",
  "title_text": "Comprehensive study of spectroscopic properties of D_(s) mesons",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:07Z",
  "url": "https://research.draconitic.com/paper/74sg8takkzh0z",
  "venue": "arXiv",
  "versions": []
}